CN114709809A - Consumable electrode welding multi-power-supply parallel device and using method - Google Patents
Consumable electrode welding multi-power-supply parallel device and using method Download PDFInfo
- Publication number
- CN114709809A CN114709809A CN202210345245.2A CN202210345245A CN114709809A CN 114709809 A CN114709809 A CN 114709809A CN 202210345245 A CN202210345245 A CN 202210345245A CN 114709809 A CN114709809 A CN 114709809A
- Authority
- CN
- China
- Prior art keywords
- current
- parallel
- power supply
- output
- welding power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/06—Two-wire DC power distribution systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/08—Three-wire DC power distribution systems; Systems having more than three wires
- H02J1/082—DC supplies with two or more different DC voltage levels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/08—Three-wire DC power distribution systems; Systems having more than three wires
- H02J1/084—Three-wire DC power distribution systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/08—Three-wire DC power distribution systems; Systems having more than three wires
- H02J1/084—Three-wire DC power distribution systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J1/086—Three-wire DC power distribution systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load or loads and source or sources when the main path fails
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/10—Parallel operation of DC sources
- H02J1/109—Scheduling or re-scheduling the operation of the DC sources in a particular order, e.g. connecting or disconnecting the sources in sequential, alternating or in subsets, to meet a given demand
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
- H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
- H02J13/1331—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using wireless data transmission
- H02J13/1335—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using wireless data transmission involving a local wireless network, e.g. Wi-Fi®, ZigBee® or Bluetooth®
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Inverter Devices (AREA)
- Arc Welding In General (AREA)
- Arc Welding Control (AREA)
Abstract
本发明提供了一种熔化极焊接多电源并联装置及使用方法，该装置包括：恒压源的主焊接电源和主控制器串联组成第一并联支路；一个恒流源的从焊接电源和一个从控制器串联组成一组并联支路，每组并联支路并联在第一并联支路的两端，按照连接顺序将并联支路分级；主控制器用于接收并联电路电流输出需求，控制主焊接电源输出的电流波形；进行电流分配，根据分配结果控制主焊接电源输出的电流值；向下一级并联支路中的从控制器发送电流输出需求；从控制器用于接收主控制器发出的电流输出需求，或上一级从控制器发出的电流输出需求；根据接收的需求进行电流分配，根据分配结果控制从焊接电源输出的电流值；向下一级从控制器发送电流输出需求。
The invention provides a multi-power source parallel device for melting electrode welding and a method for using the same. The device comprises: a main welding power source of a constant voltage source and a main controller are connected in series to form a first parallel branch; a slave welding power source of a constant current source and a The slave controllers are connected in series to form a group of parallel branches, each group of parallel branches is connected in parallel at both ends of the first parallel branch, and the parallel branches are classified according to the connection sequence; the main controller is used to receive the current output demand of the parallel circuit and control the main welding The current waveform output by the power supply; carry out current distribution, and control the current value output by the main welding power source according to the distribution result; send the current output demand to the slave controller in the parallel branch of the next level; the slave controller is used to receive the current sent by the master controller Output demand, or the current output demand sent from the controller at the previous level; perform current distribution according to the received demand, and control the current value output from the welding power source according to the distribution result; send the current output demand from the controller to the next level.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a multi-power-supply parallel device for consumable electrode welding and a using method thereof.
Background
High-power welding is an effective means for improving welding efficiency of medium and heavy plates. The existing methods for solving the problem of high-power welding comprise the following steps: single power supply high power, double power supply coordination double wires and power supply parallel technology. The main flow directions of the power supply parallel technology are two: the power supplies are connected in parallel and the power supplies are connected in parallel.
The parallel technology in the power supply means that the purpose of high-power output of one device is achieved through parallel connection of power devices. The parallel connection between the power supplies means that two or more independent power supplies realize high-power output through the parallel connection and coordination technology between the power supplies, but because the control problem of welding waveforms is involved, the difficulty of the parallel connection between the power supplies lies in the coordination output between different power supplies, and the total current and voltage waveforms output by the power supplies cannot be ensured to meet the waveform control requirement of welding.
Disclosure of Invention
The invention aims to provide a multi-power source welding multi-power source parallel device with multi-power source coordinated output and a using method thereof.
In order to achieve the above object, an embodiment of the present invention provides a multiple power supply parallel device for consumable electrode welding, including:
a master welding power supply, a master controller, at least one slave welding power supply, and at least one slave controller;
the main welding power supply and the main controller are connected in series to form a first parallel branch, and the main welding power supply is a constant voltage source;
the slave welding power supply and the slave controller are connected in series to form a group of parallel branches, each group of parallel branches are connected in parallel to two ends of the first parallel branch, and the parallel branches are classified according to the connection sequence; the slave welding power supply is a constant current source;
the main controller is used for receiving the current output requirement of the parallel circuit and controlling the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit; current distribution is carried out according to the current output requirement of the parallel circuit, and the current value output by the main welding power supply is controlled according to the distribution result; sending a current output requirement to a slave controller in the next-stage parallel branch according to the distribution result;
the slave controller is used for receiving a current output requirement sent by the master controller in the first parallel branch or a current output requirement sent by the slave controller in the upper-stage parallel branch; current distribution is performed according to the received current output demand, and the current value output from the welding power supply is controlled according to the distribution result; and sending a current output requirement to a slave controller in the next-stage parallel branch according to the distribution result.
And the master controller and the slave controller communicate in an IO carrier communication mode.
In a specific embodiment, the main controller is specifically configured to: and controlling the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit, so that the current waveforms output by all the parallel branches meet the welding current waveform requirement.
In a specific implementation, the main controller is specifically configured to: current distribution is performed according to the current output requirements of the parallel circuit and the output load of the main welding power supply, and the output current value of the main welding power supply is determined.
In a specific embodiment, the slave controller is specifically configured to: current distribution is performed based on the received current output demand and the output load of the slave welding power source, and the output current value of the slave welding power source in series with the slave controller is determined.
The embodiment of the invention also provides a using method of the multi-power-supply parallel device for the consumable electrode welding, which is used for ensuring the multi-power-supply coordinated output and comprises the following steps:
the main controller receives the current output requirement of the parallel circuit;
the main controller controls the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit;
the main controller distributes current according to the current output requirement of the parallel circuit; the main controller controls the current value output by the main welding power supply according to the distribution result and sends a current output demand to the slave controller in the next stage of parallel branch circuit according to the distribution result;
a slave controller in a next-stage parallel branch of the first parallel branch receives a current output requirement sent by a master controller in the first parallel branch; current distribution is carried out according to the received current output requirement; controlling a current value output from the welding power supply in series with the slave controller according to the distribution result; sending a current output requirement to a slave controller in a parallel branch of the next stage according to the distribution result;
the slave controller in each stage of parallel branch circuit receives the current output requirement sent by the slave controller in the previous stage of parallel branch circuit from the first parallel branch circuit to the next stage of parallel branch circuit; current distribution is carried out according to the received current output requirement, and the current value output from the welding power supply in the parallel branch is controlled according to the distribution result; sending a current output requirement to a slave controller in the next-stage parallel branch according to the distribution result;
and after the slave controller in the last stage of parallel branch circuit receives the current output requirement, current distribution is carried out according to the received current output requirement, and the current value output from the welding power supply in the last stage of parallel branch circuit is controlled according to the distribution result.
In a specific embodiment, the current distribution according to the current output requirement of the parallel circuit includes:
the main controller distributes current according to the current output requirement of the parallel circuit and the output load of the main welding power supply, and determines the output current value of the main welding power supply;
current distribution is performed according to the received current output demand, and the current value output from the welding power supply in the parallel branch is controlled according to the distribution result, and the method comprises the following steps:
the slave controller distributes current according to the received current output demand and the output load of the slave welding power source in the parallel branch, and determines the output current value of the slave welding power source in the parallel branch.
When the method is specifically implemented, the current output requirement is sent to the slave controller in the next-stage parallel branch according to the distribution result, and the method comprises the following steps:
according to the distribution result, the master controller sends a current output demand to the slave controllers in the next-stage parallel branch by using an IO carrier communication technology;
sending a current output requirement to a slave controller in a parallel branch of the next stage according to the distribution result, comprising:
and according to the distribution result, the slave controller sends a current output demand to the slave controller in the next-stage parallel branch circuit by using an IO carrier communication technology.
In a specific embodiment, the main controller controls the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit, including:
the main controller controls the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit, so that the current waveforms output by all the parallel branches meet the welding current waveform requirement.
The embodiment of the invention is characterized in that a main welding power supply, a main controller, at least one slave welding power supply and at least one slave controller are arranged; the main welding power supply and the main controller are connected in series to form a first parallel branch, and the main welding power supply is a constant voltage source; a slave welding power supply and a slave controller are connected in series to form a group of parallel branches, each group of parallel branches are connected in parallel at two ends of the first parallel branch, and the parallel branches are classified according to the connection sequence; the secondary welding power supply is a constant current source; setting a main controller to receive the current output requirement of the parallel circuit and controlling the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit; current distribution is carried out according to the current output requirement of the parallel circuit, and the current value output by the main welding power supply is controlled according to the distribution result; sending a current output requirement to a slave controller in the next-stage parallel branch according to the distribution result; the method comprises the steps that a slave controller is arranged to receive a current output requirement sent by a master controller in a first parallel branch or a current output requirement sent by a slave controller in a previous stage parallel branch; current distribution is performed according to the received current output demand, and the current value output from the welding power supply is controlled according to the distribution result; and sending a current output requirement to a slave controller in the next-stage parallel branch according to the distribution result. The output current waveform is controlled by the main controller, so that the output waveform after the multiple power supplies are connected in parallel meets the requirement, and each parallel branch can only send the current output requirement to the parallel branch of the next stage, namely, the unidirectional current distribution of the parallel branch of the first stage ensures that the current distribution is accurate and does not interfere with each other, thereby ensuring the multi-power supply coordinated output.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural view of a consumable electrode welding multi-power parallel apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an implementation process of a method for using a multi-power-supply parallel device for consumable electrode welding according to an embodiment of the invention.
Detailed Description
The present application is described in further detail below with reference to the figures and examples. The features and advantages of the present application will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not conflict with each other.
The embodiment of the invention provides a multi-power-supply parallel device for welding a melting electrode, which is used for ensuring multi-power-supply coordinated output when the multi-power-supply parallel device for welding the melting electrode is connected in parallel, and a circuit connection relation diagram of the device is shown as figure 1, and comprises the following components:
a master welding power supply 101, a master controller 102, at least one slave welding power supply 201, and at least one slave controller 202;
the main welding power supply 101 and the main controller 102 are connected in series to form a first parallel branch, and the main welding power supply 101 is a constant voltage source;
a slave welding power supply 201 and a slave controller 202 are connected in series to form a group of parallel branches, each group of parallel branches is connected in parallel to two ends of the first parallel branch, and the parallel branches are classified according to the connection sequence; the slave welding power supply 201 is a constant current source;
the main controller 102 is configured to receive a parallel circuit current output demand, and control a current waveform output by the main welding power supply 101 according to the parallel circuit current output demand; current distribution is carried out according to the current output requirement of the parallel circuit, and the current value output by the main welding power supply 101 is controlled according to the distribution result; sending a current output requirement to a slave controller 202 in the next-stage parallel branch according to the distribution result;
the slave controller 202 is configured to receive a current output requirement sent by the master controller 102 in the first parallel branch, or a current output requirement sent by the slave controller 202 in the previous stage parallel branch; current distribution is performed according to the received current output demand, and the current value output from the welding power supply 201 is controlled according to the distribution result; and sending a current output demand to the slave controller 202 in the next stage parallel branch according to the distribution result.
In particular embodiments, the welding system is configured by providing a master welding power supply 101, a master controller 102, at least one slave welding power supply 201, and at least one slave controller 202; the main welding power supply 101 and the main controller 102 are connected in series to form a first parallel branch, and the main welding power supply 101 is a constant voltage source; a slave welding power supply 201 and a slave controller 202 are connected in series to form a group of parallel branches, each group of parallel branches is connected in parallel to two ends of the first parallel branch, and the parallel branches are classified according to the connection sequence; and the slave welding power supply 201 is a constant current source; setting a main controller 102 to receive the current output requirement of the parallel circuit and controlling the current waveform output by the main welding power supply 101 according to the current output requirement of the parallel circuit; current distribution is carried out according to the current output requirement of the parallel circuit, and the current value output by the main welding power supply 101 is controlled according to the distribution result; sending a current output requirement to a slave controller 202 in the next-stage parallel branch according to the distribution result; the slave controller 202 is set to receive the current output requirement sent by the master controller 102 in the first parallel branch or the current output requirement sent by the slave controller 202 in the previous stage parallel branch; current distribution is performed according to the received current output demand, and the current value output from the welding power supply 201 is controlled according to the distribution result; and sending a current output demand to the slave controller 202 in the next stage parallel branch according to the distribution result. By setting the main controller 102 to control the output current waveform, the output waveform of a plurality of power supplies connected in parallel meets the requirement, and each parallel branch can only send the current output requirement to the next parallel branch, namely, the unidirectional current distribution of the one-level parallel branch ensures accurate current distribution and non-interference, thereby ensuring multi-power supply coordinated output.
The parallel circuit current output requirement refers to some requirements of welding current output by the multi-power-supply parallel device for consumable electrode welding during welding, and comprises requirements of current magnitude, current waveform and the like.
The main welding power supply 101 is a constant voltage source, that is, the output characteristic of macroscopic constant voltage is adopted; the welding power source 201 is a constant current source, that is, a constant current output characteristic is adopted, and may be a stable single current output or a pulse current output. And the main welding power supply 101 and the auxiliary welding power supply 201 are independent welding power supplies, and each power supply can be independently welded or can realize higher-power welding through a parallel scheme. For example, if there are 3 power supplies connected in parallel, and the output load duration rate of each power supply is 400A, 100%, then each power supply can independently output 400A, 100% at the maximum, and 1200A, 100% load output can also be achieved by the parallel connection scheme provided by the embodiment of the present invention.
As shown in fig. 1, the master welding power supply 101 is connected in series with each slave welding power supply 201 in a unidirectional manner, and the parallel branch hierarchy in which each slave welding power supply 201 is located may be determined based on the order in which it is connected in the series connection, e.g., from level 1, level 2, … … through level n, as shown in fig. 1.
The main controller 102 is configured to receive a parallel circuit current output requirement, and control a current waveform output by the main welding power supply 101 according to the parallel circuit current output requirement, in a specific embodiment, the main controller 102 is specifically configured to: according to the current output requirement of the parallel circuit, the current waveform output by the main welding power supply 101 is controlled, so that the current waveforms output by all parallel branches meet the welding current waveform requirement, namely, the waveform displayed on an oscilloscope of the current output by the multi-power supply parallel device for welding the consumable electrode provided by the embodiment of the invention is consistent with the current waveform required by welding.
The main controller 102 is configured to perform current distribution according to the current output requirement of the parallel circuit, and control the current value output by the main welding power supply 101 according to the distribution result, in a specific embodiment, the main controller 102 is specifically configured to: current distribution is performed based on the parallel circuit current output requirements and the output load of the main welding power supply 101 to determine the output current value of the main welding power supply 101. For example, the parallel circuit current output requirement is 1200A, the output load of the primary welding power supply 101 is the maximum output 400A, the master controller 102 compares the output current value of the primary welding power supply 101 with the maximum output 400A, and determines to send the current output requirement to the slave controller 202 in the next parallel branch based on the comparison. For example, if the master controller 102 controls the output 350A of the primary welding power supply 101, then the current output requirement is sent to the slave controller 202 in the next parallel branch as 850A.
Accordingly, the slave controller 202 is specifically configured to: current sharing is performed based on the received current output demand and the output load from the welding power supply 201, determining the output current value from the welding power supply 201 in series with the slave controller 202, e.g., the slave controller 202 in the level 1 parallel branch of fig. 1 receives the current output demand of 850A, while the output load from the welding power supply 201 is only the maximum output 300A, the slave controller 202 compares the current output demand of 850A with the output load of the maximum output 300A, performs current sharing, controls the output 300A from the welding power supply 201 in the level 1 parallel branch, and sends the current output demand to the slave controller 202 in the level 2 parallel branch of 550A. The primary parallel branch circuit distributes current in sequence and sends current output requirements to the secondary parallel branch circuit until the last parallel branch circuit, so that one-way connection between the main welding power supply 101 and the secondary welding power supply 201 is realized, one-way connection is realized between the primary secondary welding power supply 201 and the secondary welding power supply 201, and further one-way current distribution from top to bottom is realized.
In order to satisfy real-time performance, communication is performed between the master controller 102 and the slave controller 202, and between the slave controller 202 and the slave controller 202 by an IO carrier communication method. That is, when the master controller 102 sends a current output demand to the slave controller 202, the slave controller 202 receives the current output demand sent by the master controller 102, the slave controller 202 sends a current output demand to the slave controller 202 in the next-stage parallel branch, and the slave controller 202 receives a current output demand sent by the slave controller 202 in the previous-stage parallel branch, the current output demands are all realized by using an IO carrier communication technology. Specifically, carrier communication (carrier communication) is a telephone multiplex communication system based on a frequency division multiplexing technology, and belongs to a standard of classical analog communication, and IO carrier communication is a technology for realizing real-time communication between communication devices by using a carrier communication technology through an IO interface.
Based on the same inventive concept, an embodiment of the present invention further provides a method for using a multiple power supply parallel device for welding a consumable electrode, the principle of the problem to be solved is similar to that of the multiple power supply parallel device for welding a consumable electrode, and repeated descriptions are omitted, and a specific process, as shown in fig. 2, includes:
step S1: the master controller 102 receives a parallel circuit current output demand;
step S2: the main controller 102 controls the current waveform output by the main welding power supply 101 according to the current output requirement of the parallel circuit;
step S3: the main controller 102 distributes current according to the current output requirement of the parallel circuit; the master controller 102 controls the current value output by the master welding power supply 101 according to the distribution result, and sends a current output demand to the slave controller 202 in the next-stage parallel branch according to the distribution result;
step S4: the slave controller 202 in the next-stage parallel branch of the first parallel branch receives the current output requirement sent by the master controller 102 in the first parallel branch; current distribution is carried out according to the received current output requirement; controlling a current value output from the welding power supply 201 in series with the slave controller 202 according to the distribution result; sending a current output requirement to the slave controller 202 in the parallel branch of the next stage according to the distribution result;
step S5: from the first parallel branch to the next parallel branch, the slave controller 202 in each stage of parallel branch receives the current output demand from the slave controller 202 in the previous stage of parallel branch; current distribution is performed according to the received current output demand, and the current value output from the welding power supply 201 in the parallel branch is controlled according to the distribution result; sending a current output requirement to a slave controller 202 in the parallel branch of the next stage according to the distribution result;
step S6: and after the slave controller 202 in the last-stage parallel branch receives the current output requirement, current distribution is performed according to the received current output requirement, and the current value output from the welding power supply 201 in the last-stage parallel branch is controlled according to the distribution result.
When step 202 is implemented, the main controller 102 controls the current waveform output by the main welding power supply 101 according to the current output requirement of the parallel circuit, so that the current waveforms output by all the parallel branches conform to the welding current waveform requirement.
In the specific embodiment, in step S3, the main controller 102 performs current distribution according to the parallel circuit current output requirement, including: the main controller 102 performs current distribution based on the parallel circuit current output demand and the output load of the main welding power supply 101 to determine the output current value of the main welding power supply 101. Accordingly, in step S4, the current distribution according to the received current output demand includes: the slave controller 202 in the next-stage parallel branch of the first parallel branch performs current distribution based on the received current output demand and the output load of the slave welding power supply 201 connected thereto, and determines the output current value of the slave welding power supply 201 in the parallel branch. In step S5, the current distribution is performed according to the received current output requirement, and the current value output from the welding power supply 201 in the parallel branch is controlled according to the distribution result, including: the slave controller 202 performs current sharing based on the received current output demand and the output load of the slave welding power supply 201 in the parallel branch, determining the value of the output current of the slave welding power supply 201 in the parallel branch.
In order to meet the requirement of real-time performance, in a specific embodiment, in step S3, sending a current output requirement to the slave controller 202 in the next-stage parallel branch according to the distribution result includes: according to the distribution result, the master controller 102 sends a current output demand to the slave controller 202 in the next-stage parallel branch by using the IO carrier communication technology. In step S4, receiving a current output request from the main controller 102 in the first parallel branch includes: the slave controller 202 receives the current output demand from the master controller 102 in the first parallel branch using IO carrier communication technology. Sending a current output demand to the slave controller 202 in the parallel branch of the next stage according to the distribution result, including: according to the allocation result, the slave controller 202 transmits a current output demand to the slave controller 202 in the parallel branch of the next stage by using the IO carrier communication technique. In step S5, receiving a current output request from the controller 202 in the parallel branch of the previous stage, the method includes: the slave controller 202 receives a current output demand from the slave controller 202 in the parallel branch of the previous stage by using an IO carrier communication technique. Sending a current output demand to the slave controller 202 in the parallel branch of the next stage according to the distribution result, including: according to the allocation result, the slave controller 202 transmits a current output demand to the slave controller 202 in the parallel branch of the next stage by using the IO carrier communication technique. In step S6, receiving a current output request from the controller 202 includes: the current output demand is received from the controller 202 using IO carrier communication techniques.
By the above-described method of use, a top-down current distribution manner is achieved, i.e., the main welding power supply 101 distributes the current values output from the welding power supply 201 to level 1, the level 1 slave welding power supply 201 distributes the current values output from the welding power supply 201 to level 2, and so on, according to the current distribution rule. For example: the welding current of output 1200A needs to be set, the primary welding power supply 101 only retains the output capability of 400A according to its own output capability, and distributes the primary current to the level-1 secondary welding power supply 201800A, and so on, and it is noted that the distribution manner described in this example is only an example and does not represent the actual current distribution rule. In this way, unidirectional current distribution is achieved, i.e., the master welding power supply 101 can distribute current to the level 1 slave welding power supply 201 by primary current distribution, but the level 1 slave welding power supply 201 cannot distribute current to the master welding power supply 101, and can only distribute current to the level 2 slave welding power supply 201.
In summary, the multi-power-supply parallel device for welding with consumable electrode and the using method thereof provided by the embodiment have the following advantages:
the output current waveform is controlled by setting the main controller, so that the output waveform after the multiple power supplies are connected in parallel meets the requirement; the current output requirement can be only sent to the next-stage parallel branch by each parallel branch, so that the unidirectional current distribution of the first-stage parallel branch is realized, the current distribution is accurate and is not interfered with each other, and the multi-power supply coordinated output is ensured; by applying the IO carrier communication technology, the real-time property of information transmission is realized, so that the real-time property of the current required by welding provided by the multi-power-supply parallel device for the consumable electrode welding is realized.
Although the present invention provides method steps as described in the examples or flowcharts, more or fewer steps may be included based on routine or non-inventive labor. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of sequences, and does not represent a unique order of performance. When implemented in practice, the apparatus or client products may be executed sequentially or in parallel (e.g., in the context of parallel processors or multi-threaded processing) according to the methods shown in the embodiments or figures.
As will be appreciated by one skilled in the art, embodiments of the present description may be provided as a method, apparatus (system) or computer program product. Accordingly, embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment. In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention is not limited to any single aspect, nor is it limited to any single embodiment, nor is it limited to any combination and/or permutation of these aspects and/or embodiments. Moreover, each aspect and/or embodiment of the present invention may be utilized alone or in combination with one or more other aspects and/or embodiments thereof.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. A multiple power supply parallel device for consumable electrode welding, comprising:
a master welding power supply, a master controller, at least one slave welding power supply, and at least one slave controller;
the main welding power supply and the main controller are connected in series to form a first parallel branch, and the main welding power supply is a constant voltage source;
the slave welding power supply and the slave controller are connected in series to form a group of parallel branches, each group of parallel branches are connected in parallel to two ends of the first parallel branch, and the parallel branches are classified according to the connection sequence; the slave welding power supply is a constant current source;
the main controller is used for receiving the current output requirement of the parallel circuit and controlling the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit; current distribution is carried out according to the current output requirement of the parallel circuit, and the current value output by the main welding power supply is controlled according to the distribution result; sending a current output requirement to a slave controller in the next-stage parallel branch according to the distribution result;
the slave controller is used for receiving a current output requirement sent by the master controller in the first parallel branch or a current output requirement sent by the slave controller in the upper-stage parallel branch; current distribution is performed according to the received current output demand, and the current value output from the welding power supply is controlled according to the distribution result; and sending a current output requirement to a slave controller in the next-stage parallel branch according to the distribution result.
2. The multi-power-supply parallel device for welding with the consumable electrode according to claim 1, wherein the master controller and the slave controller communicate with each other through IO carrier communication.
3. The welding multi-power-supply parallel device of claim 1, wherein the main controller is specifically configured to: and controlling the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit, so that the current waveforms output by all the parallel branches meet the welding current waveform requirement.
4. The welding multi-power-supply parallel device of claim 1, wherein the main controller is specifically configured to: current distribution is performed according to the current output requirements of the parallel circuit and the output load of the main welding power supply, and the output current value of the main welding power supply is determined.
5. The welding multi-power-supply parallel device of claim 1, wherein the slave controller is specifically configured to: current distribution is performed based on the received current output demand and the output load of the slave welding power source, and the output current value of the slave welding power source in series with the slave controller is determined.
6. A method of using the multiple power source parallel device for consumable electrode welding according to any one of claims 1 to 5, comprising:
the main controller receives the current output requirement of the parallel circuit;
the main controller controls the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit;
the main controller distributes current according to the current output requirement of the parallel circuit; the main controller controls the current value output by the main welding power supply according to the distribution result and sends a current output demand to the slave controller in the next stage of parallel branch circuit according to the distribution result;
a slave controller in a next-stage parallel branch of the first parallel branch receives a current output demand sent by a master controller in the first parallel branch; current distribution is carried out according to the received current output requirement; controlling a current value output from the welding power supply in series with the slave controller according to the distribution result; sending a current output requirement to a slave controller in a parallel branch of the next stage according to the distribution result;
the slave controller in each stage of parallel branch circuit receives the current output requirement sent by the slave controller in the previous stage of parallel branch circuit from the first parallel branch circuit to the next stage of parallel branch circuit; current distribution is carried out according to the received current output requirement, and the current value output from the welding power supply in the parallel branch is controlled according to the distribution result; sending a current output requirement to a slave controller in a next-stage parallel branch according to the distribution result;
and after the slave controller in the last stage of parallel branch circuit receives the current output requirement, current distribution is carried out according to the received current output requirement, and the current value output from the welding power supply in the last stage of parallel branch circuit is controlled according to the distribution result.
7. The method of using a multiple power supply parallel device for welding with a consumable electrode as set forth in claim 6, wherein the current distribution according to the current output requirement of the parallel circuit comprises:
the main controller distributes current according to the current output requirement of the parallel circuit and the output load of the main welding power supply, and determines the output current value of the main welding power supply;
current distribution is performed according to the received current output demand, and the current value output from the welding power supply in the parallel branch is controlled according to the distribution result, and the method comprises the following steps:
and the slave controller performs current distribution according to the received current output requirement and the output load of the slave welding power supply in the parallel branch, and determines the output current value of the slave welding power supply in the parallel branch.
8. The method for using a multiple power supply parallel device for welding the melting electrode according to claim 6, wherein the step of sending a current output demand to the slave controller in the next stage parallel branch according to the distribution result comprises the following steps:
according to the distribution result, the master controller sends a current output demand to the slave controllers in the next-stage parallel branch by using an IO carrier communication technology;
sending a current output requirement to a slave controller in a parallel branch of the next stage according to the distribution result, comprising:
and according to the distribution result, the slave controller sends a current output demand to the slave controller in the next-stage parallel branch circuit by using an IO carrier communication technology.
9. The method of using a multiple power supply parallel device for consumable electrode welding as defined in claim 6, wherein the main controller controls the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit, comprising:
the main controller controls the current waveform output by the main welding power supply according to the current output requirement of the parallel circuit, so that the current waveforms output by all the parallel branches meet the welding current waveform requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345245.2A CN114709809B (en) | 2022-04-02 | 2022-04-02 | Multi-power parallel connection device for consumable electrode welding and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345245.2A CN114709809B (en) | 2022-04-02 | 2022-04-02 | Multi-power parallel connection device for consumable electrode welding and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114709809A true CN114709809A (en) | 2022-07-05 |
| CN114709809B CN114709809B (en) | 2025-04-08 |
Family
ID=82173475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210345245.2A Active CN114709809B (en) | 2022-04-02 | 2022-04-02 | Multi-power parallel connection device for consumable electrode welding and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114709809B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003773A1 (en) * | 1990-08-14 | 1992-03-05 | Klöckner-Moeller Gmbh | Process for symmetrical load distribution in power supply units connected in parallel on the output side |
| EP1143591A2 (en) * | 2000-03-30 | 2001-10-10 | Robert Bosch Gmbh | Method and device for controlling parallel operation of DC-DC converters |
| CN102541233A (en) * | 2010-12-29 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Server power supply system |
| CN106711991A (en) * | 2016-12-23 | 2017-05-24 | 长园深瑞继保自动化有限公司 | Power supply module and distribution method for distributing power freely |
| CN108923520A (en) * | 2018-07-13 | 2018-11-30 | 哈尔滨工程大学 | A solar-storage integrated power supply that can realize independent load distribution of series and parallel operation |
| CN113176517A (en) * | 2021-04-15 | 2021-07-27 | 武汉励行科技有限公司 | Micro-current compensation method and system for precise control |
-
2022
- 2022-04-02 CN CN202210345245.2A patent/CN114709809B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003773A1 (en) * | 1990-08-14 | 1992-03-05 | Klöckner-Moeller Gmbh | Process for symmetrical load distribution in power supply units connected in parallel on the output side |
| EP1143591A2 (en) * | 2000-03-30 | 2001-10-10 | Robert Bosch Gmbh | Method and device for controlling parallel operation of DC-DC converters |
| CN102541233A (en) * | 2010-12-29 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Server power supply system |
| CN106711991A (en) * | 2016-12-23 | 2017-05-24 | 长园深瑞继保自动化有限公司 | Power supply module and distribution method for distributing power freely |
| CN108923520A (en) * | 2018-07-13 | 2018-11-30 | 哈尔滨工程大学 | A solar-storage integrated power supply that can realize independent load distribution of series and parallel operation |
| CN113176517A (en) * | 2021-04-15 | 2021-07-27 | 武汉励行科技有限公司 | Micro-current compensation method and system for precise control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114709809B (en) | 2025-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104615498B (en) | A kind of group system dynamic load balancing method of task based access control migration | |
| CN103891086B (en) | Method and device for providing electrical energy | |
| CN107122232B (en) | Device and method for processing multimedia tasks | |
| CN106828145A (en) | Fully apply the off-board charger flexibility charging optimization method of electric automobile | |
| CN105450684A (en) | Cloud computing resource scheduling method and system | |
| CN103389791B (en) | The Poewr control method of data system and device | |
| CN108270231A (en) | Intelligent charging spot load random access control system and method | |
| CN114709809A (en) | Consumable electrode welding multi-power-supply parallel device and using method | |
| CN112422427B (en) | Traffic engineering implementation method, device and controller based on segmented routing | |
| WO2022044431A1 (en) | Power conversion device | |
| CN108710543A (en) | A kind of processing method and equipment of rendering task | |
| WO2023138157A1 (en) | Motherboard, and power conversion method and apparatus | |
| CN109687499B (en) | Voltage balance control method for series connection converter valve of flexible direct current converter station | |
| CN106411150B (en) | The cascade multilevel converter and control method of bi-motor asynchronous operation can be driven | |
| CN113342526B (en) | Dynamic management and control method, system, terminal and medium for cloud computing mobile network resources | |
| CN116432761A (en) | Processing method, device, equipment and storage medium for quantum computing tasks | |
| CN111267649A (en) | Maximum efficiency tracking control method and vehicle-mounted charging system | |
| Shah et al. | Optimization based AIMD saturated algorithms for public charging of electric vehicles | |
| EP4177809A1 (en) | Method for supplying blockchain computing power and system thereof | |
| CN113346782B (en) | Bridge arm parallel type MMC parallel sub-bridge arm current sharing control method and device | |
| CN117559496A (en) | Hybrid energy storage system, control method, electronic device and storage medium | |
| CN116231661A (en) | A power control method, system, electronic device and storage medium | |
| CN114257076B (en) | Converter system, control method thereof and storage medium | |
| CN118157138B (en) | A method, device and system for controlling AC/DC hybrid switching | |
| CN107220112A (en) | The management method of scarce resource under a kind of office automation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |