WO2024031960A1 - Onduleur solaire - Google Patents

Onduleur solaire Download PDF

Info

Publication number
WO2024031960A1
WO2024031960A1 PCT/CN2023/078111 CN2023078111W WO2024031960A1 WO 2024031960 A1 WO2024031960 A1 WO 2024031960A1 CN 2023078111 W CN2023078111 W CN 2023078111W WO 2024031960 A1 WO2024031960 A1 WO 2024031960A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
arc detection
input terminal
circuit
solar inverter
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.)
Ceased
Application number
PCT/CN2023/078111
Other languages
English (en)
Chinese (zh)
Inventor
吴军纬
林鸿铨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delta Electronics Inc
Original Assignee
Delta Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Delta Electronics Inc filed Critical Delta Electronics Inc
Publication of WO2024031960A1 publication Critical patent/WO2024031960A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • 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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells

Definitions

  • the present disclosure relates to a solar inverter.
  • an object of the present disclosure is to provide a solar inverter with an arc detection mechanism.
  • a solar inverter includes a housing, at least one circuit board provided in the housing, a current sensor provided on the circuit board, and a circuit board provided on the circuit board.
  • the self-detection circuit is configured to deliver a test signal for induction by the arc detection coil.
  • the DC input terminal is configured to deliver current through the arc detection coil, and the current sensor is configured to detect the magnitude of the current passing through the DC input terminal.
  • the solar inverter of the present disclosure integrates arc detection coils and self-detection circuits on a circuit board. This approach helps save cost and space, and makes it easier to conduct arc detection and self-function detection for each solar string.
  • FIG. 1 is a schematic diagram illustrating a solar power system according to an embodiment of the present disclosure.
  • FIG. 2 is an internal structural diagram showing the solar inverter of the solar power system shown in FIG. 1 .
  • FIG. 3 is a partial enlarged cross-sectional view of a solar inverter according to another embodiment of the present disclosure.
  • FIG. 4 is a partial enlarged cross-sectional view of a solar inverter according to another embodiment of the present disclosure.
  • FIG. 5 is a front view showing the solar inverter shown in FIG. 4 .
  • FIG. 6 is a partial enlarged cross-sectional view of a solar inverter according to another embodiment of the present disclosure.
  • FIG. 7 is a front view showing the second circuit board of the solar inverter shown in FIG. 6 .
  • FIG. 8 is a partial enlarged cross-sectional view of a solar inverter according to another embodiment of the present disclosure.
  • FIG. 9 is a partial enlarged cross-sectional view of a solar inverter according to another embodiment of the present disclosure.
  • FIG. 10 is a partial enlarged cross-sectional view of a solar inverter according to another embodiment of the present disclosure.
  • FIG. 11 is a partial enlarged cross-sectional view of a circuit board according to an embodiment of the present disclosure.
  • FIG. 12 is a partial enlarged cross-sectional view of a circuit board according to another embodiment of the present disclosure.
  • FIG. 13 is a partial enlarged cross-sectional view of a circuit board according to yet another embodiment of the present disclosure.
  • the solar power system 10 includes a plurality of solar panels 11 and a solar inverter 12.
  • the solar inverter 12 is connected to the solar panels 11 and is configured to convert the DC power generated by the solar panels 11 into AC power, and then output the AC power. to the power grid or equipment that uses electricity.
  • the solar inverter 12 includes an arc detection unit 13.
  • the arc detection unit 13 is configured to determine whether an arc fault occurs in the line between the solar inverter 12 and the solar panel 11.
  • the solar inverter 12 also includes a DC switch 14 .
  • the solar inverter 12 further includes a detection circuit controller 15 .
  • the detection circuit controller 15 is configured to inject a white noise or high-frequency signal through a self-detection circuit (such as the self-detection circuit 38 in FIG. 2 ), thereby detecting whether the arc detection unit 13 functions normally.
  • the solar inverter 12 can stop receiving energy from the solar panel 11 when the arc detection unit 13 determines that an arc fault occurs in the line between the solar inverter 12 and the solar panel 11 (for example: the solar inverter 12 can be turned off and Stop operation, or use the DC switch 14 to cut off the power supply from the solar panel 11 to the solar inverter 12). Since the solar panel 11 is a passive component, it will generate electricity when exposed to sunlight. Unlike other DC power sources such as power supplies and batteries, which can shut down when abnormality is detected, the solar power system 10 of the present disclosure has an arc detection function. Integrated in the solar inverter 12, the solar inverter 12 detects arc faults and cuts off power (stops drawing current from the solar panel 11) when an arc fault occurs to protect the solar power system 10.
  • the solar inverter 12 includes a housing 20 and one or more DC input terminals 25 .
  • the DC input terminal 25 is disposed on the wall of the housing 20 and is connected to the solar panel 11 (not shown in FIG. 2 , please see FIG. 1 ) to receive current from the solar panel 11 .
  • each DC input terminal 25 is connected to a solar string, and each string may include one or more solar panels 11 .
  • the solar inverter 12 also includes a circuit board 30 , which is disposed in the housing 20 facing the DC input terminal 25 and connected to the DC input terminal 25 .
  • the DC input terminal 25 is connected to the circuit board 30 via the cable 60 .
  • the circuit board 30 has an opening 31 , one end of the cable 60 is connected to the DC input terminal 25 , and extends through the circuit board 30 through the opening 31 .
  • the cable 60 passes through the circuit board 30 and is connected to a connection interface (for example, the connection terminal 37) on the circuit board 30.
  • the solar inverter 12 also includes a current sensor 33 disposed on the circuit board 30 (only for illustration, the specific structure is not shown).
  • the current sensor 33 is configured to detect the current through the DC input terminal 25 .
  • the size of the current In other words, the circuit board 30 has the function of detecting the input current of the DC input terminal 25 .
  • the solar inverter 12 further includes an arc detection coil 35 , which is disposed on the circuit board 30 and surrounds the opening 31 of the circuit board 30 . Therefore, the DC input terminal 25 can carry current through/through the arc detection coil 35 via the cable 60 .
  • the arc detection coil 35 may be disposed on the surface of the circuit board 30 . In other embodiments, the arc detection coil 35 may also be embedded in the circuit board 30 .
  • the solar inverter 12 also includes a self-detection circuit 38.
  • the self-detection circuit 38 is also disposed on the circuit board 30 and is configured in some sections of the arc detection coil 35. The self-detection circuit 38 injects a white noise or high-frequency signal to detect whether the arc detection coil 35 can detect the white noise or high-frequency signal.
  • the arc detection coil 35 is a Rogowski coil, for example.
  • the arc detection coil 35 may be connected to the arc detection unit 13 through a signal line (refer to FIG. 1 ).
  • the arc detection unit 13 may be provided on the circuit board 30 or other circuit boards.
  • the arc detection unit 13 is configured to receive a signal (for example, a voltage signal) from the arc detection coil 35 and perform signal processing and spectrum analysis on the received signal to determine whether an arc fault occurs in the string group corresponding to the DC input terminal 25 .
  • the arc detection unit 13 may include a filter, an amplifier, a digital signal processor or other electronic components to perform filtering, amplification, Fourier analysis and other actions to perform spectrum analysis to determine whether an arc fault occurs.
  • the current practice is to use an arc detection coil wrapped around a ring core (core) for arc detection, and the self-detection circuit 38 is a partial section wrapped around the ring core.
  • this form of arc detection coil is large in size, the wiring of the self-detection circuit 38 is also very messy, and the cost is also high.
  • the solar inverter 12 of the present disclosure integrates the arc detection coil 35 and the self-detection circuit 38 on the circuit board 30. This approach can save the assembly space, cost and circular skeleton form of the arc detection coil and the self-detection circuit.
  • the detection coil is also relatively low, and the arc detection coil 35 only needs to be arranged on the DC input terminal 25 on the circuit board 30 to perform arc detection on the corresponding string group individually.
  • the embodiment shown in FIG. 2 integrates the arc detection coil 35 and the self-detection circuit 38 on the original circuit board 30 that is used to match the DC input terminal 25 and has a current detection function, so that the solar inverter 12 The structure becomes more streamlined.
  • FIG. 2 only representatively depicts one of the DC input terminals 25 connected to the circuit board 30 through the cable 60 , and the arc detection coil 35 and self-detection circuit 38 corresponding to one of the DC input terminals 25 .
  • each DC input terminal 25 of the solar inverter 12 can be connected to a cable 60, and a plurality of arc detection coils 35 can be provided on the circuit board 30, and each arc detection coil 35 passes through one of them.
  • the DC input terminal 25 ie, surrounds one of the cables 60 ), and has a self-detection circuit 38 surrounding a portion of the arc detection coil 35 .
  • the circuit board 30 is a bus circuit board. Specifically, the circuit board 30 is configured to receive current from a plurality of DC input terminals 25 and output the current via at least one output terminal (eg, connection terminal 37 ) provided on the circuit board 30 , where the number of output terminals is smaller than the DC input terminals 25 . Number of terminals 25. Therefore, in these embodiments, the arc detection coil 35 and the self-detection circuit 38 are integrated on the original bus circuit board, so that the structure of the solar inverter 12 becomes more streamlined.
  • the solar inverter 12 further includes an electromagnetic interference suppression capacitor 39 disposed on the circuit board 30 . Therefore, in these embodiments, the arc detection coil 35 is integrated on the original circuit board 30 that is used to match the DC input terminal 25 and has the function of suppressing electromagnetic interference, so that the structure of the solar inverter 12 becomes more streamlined. .
  • the circuit board 30 has a plurality of openings 31, each opening 31 provides a line Cables 60 are passed through, and each cable 60 is connected to a different DC input terminal 25 .
  • the arc detection coil 35 is disposed around the plurality of openings 31 so that the plurality of DC input terminals 25 transmit current through the arc detection coil 35 via the plurality of cables 60 .
  • the arc detection coil 35 can be connected to the arc detection unit through a signal line.
  • the arc detection unit is configured to receive signals from the arc detection coil 35 and perform signal processing and spectrum analysis on the received signals to determine whether one of the DC input terminals 25 is present. An arc fault occurs in the corresponding string group.
  • Some sections of the arc detection coil 35 are also surrounded by self-detection circuits 38 to provide self-detection functions of the arc detection coil 35 and the arc detection unit.
  • the circuit board 30 is fixed on the DC input terminal 25 .
  • the DC input terminal 25 is inserted into the opening 31 of the circuit board 30 , and the end of the DC input terminal 25 is locked with a fastener 90 (such as a screw), thereby locking and fixing the circuit board 30 to the DC input terminal 25 . on terminal 25.
  • a fastener 90 such as a screw
  • the solar inverter 12 further includes a connection terminal 37 , which is disposed on the circuit board 30 and is electrically connected to the DC input terminal through the internal circuit 32 (shown as a dotted line) of the circuit board 30 25. Therefore, the current will flow through the DC input terminal 25, the internal wiring 32 of the circuit board 30 and the connection terminal 37 in sequence.
  • the connection terminal 37 can be connected to an external cable 65 to deliver current to other components of the solar inverter 12 (for example, a DC switch).
  • the arc detection coil 35 is arranged around the DC input terminal 25 and the connection terminal 37 so that the current from the DC input terminal 25 passes through the arc detection coil 35 .
  • the spiral coil formed by the arc detection coil 35 on the circuit board is a closed rectangular ring, and the self-detection circuit 38 is disposed in a partial section of the closed ring.
  • the closed ring shape of the arc detection coil 35 may also be circular, elliptical, square or triangular.
  • the spiral coil formed by the arc detection coil 35 on the circuit board may also be an unclosed rectangular ring, a circular ring, an elliptical ring, a square ring or a triangular ring, etc.
  • the arc detection coil and the current sensor are arranged on different circuit boards.
  • the current sensor is disposed on the circuit board 30 (see Figure 2)
  • the solar inverter further includes the circuit board 50, the arc detection coil 56 and its self-detection circuit 58 are disposed on the circuit board.
  • the circuit board 50 has an opening 53 around which the arc detection coil 56 is disposed.
  • the circuit board 50 is sleeved on the cable 60 connected to the DC input terminal 25 . In other words, the cable 60 passes through the opening 53 of the circuit board 50 so that the arc detection coil 56 surrounds the cable 60 .
  • arc detection coil 56 can pass through the arc detection coil 56 via the cable 60 .
  • Some sections of the arc detection coil 56 are provided with self-detection circuits 58 to provide self-detection functions of the arc detection coil 56 and the arc detection unit.
  • the arc detection coil and the current sensor are arranged on different circuit boards.
  • the current sensor is disposed on the circuit board 30 (see FIG. 2 )
  • the solar inverter further includes the circuit board 50
  • the arc detection coil 56 is disposed on the circuit board 50 .
  • the circuit board 50 has an opening 53 around which the arc detection coil 56 is disposed.
  • the circuit board 50 is sleeved on the cable 65 connected to the connection terminal 37 on the circuit board 30 .
  • the cable 65 passes through the opening 53 of the circuit board 50 so that the arc detection coil 56 surrounds the cable 65 . Therefore, the current from the DC input terminal 25 can be supplied via Cable 65 passes through arc detection coil 56 .
  • the current sensor (see Figure 2), the arc detection coil 56, and the self-detection circuit 58 are respectively disposed on the circuit boards 30 and 50, and the circuit board 50 is located between the circuit board 30 and the DC input terminal 25. between.
  • the DC input terminal 25 is connected to the circuit board 30 through a cable 60 .
  • one end of the cable 60 is fixedly connected to the DC input terminal 25 .
  • the other end of the cable 60 is fixedly connected to the circuit board 30 .
  • the solar inverter further includes an electrical connector 70 that connects the circuit boards 30 and 50 and electrically connects the arc detection coil 56 disposed around the opening 53 through the internal wiring 57 of the circuit board 50 .
  • the electrical connector 70 may include a plurality of pins, and the sensing signal generated by the arc detection coil 56 may be transmitted to the circuit board 30 through the internal wiring 57 of the circuit board 50 and the electrical connector 70 .
  • an arc detection unit (not shown) is disposed on the circuit board 30 , and the sensing signal generated by the arc detection coil 56 is transmitted to the arc detection unit on the circuit board 30 through the electrical connector 70 for analysis.
  • the arc detection unit can also be disposed on other circuit boards.
  • the sensing signal generated by the arc detection coil 56 is first transmitted to the circuit board 30 through the electrical connector 70 and then transmitted to the circuit board 30 through other lines.
  • the arc detection unit on the board performs analysis.
  • the detection circuit controller (not shown) is disposed on the circuit board 30 , and the detection circuit controller 15 passes a white noise or high-frequency signal through the electrical connector 70 and the internal circuit 59 of the circuit board 50 .
  • the detection circuit 58 is injected to provide the self-detection function of the arc detection coil 56 and the arc detection unit.
  • the circuit board 30 is fixed on the DC input terminal 25 (for example, fixed by fasteners 90 such as screws), and the circuit board 50 is located between the circuit board 30 and the casing. 20 is disposed between the walls of the DC input terminal 25 and is sleeved on the DC input terminal 25 (in other words, the DC input terminal 25 extends through the opening 53 of the circuit board 50).
  • the circuit boards 30 and 50 are connected through an electrical connector 70 , and the electrical connector 70 is electrically connected to the arc detection coil 56 disposed around the opening 53 through the internal circuit 57 of the circuit board 50 .
  • Some sections of the arc detection coil 56 are provided with self-detection circuits 58 to provide self-detection functions of the arc detection coil 56 and the arc detection unit.
  • FIG. 11 shows a partial enlarged cross-sectional view of a circuit board 30/50 according to an embodiment of the present disclosure.
  • This figure shows a cross-sectional view of a 6-layer (L1-L6) copper foil circuit board 30/50.
  • This part includes the aforementioned arc detection coil 35/56 and self-detection circuit 38/58.
  • the arc detection coil 35/56 is formed between the layers L2 to L5 to form a spiral coil
  • the self-detection circuit 38/58 is formed between the layers L1 to L6 to form a spiral coil and surrounds the arc detection coil part of the paragraph.
  • the spiral coils of the arc detection coil 35/56 and the spiral coils of the self-detection circuit 38/58 are coaxial (for example, both have the air axis AC as the axis center).
  • the self-detection circuit 38/58 is configured to inject a white noise or high-frequency signal into the air shaft AC, thereby detecting whether the arc detection coil 35/56 can detect the white noise or high-frequency signal in the air shaft AC to provide Self-detection function of arc detection coil and arc detection unit.
  • FIG. 12 shows a partial enlarged cross-sectional view of a circuit board 30/50 according to another embodiment of the present disclosure.
  • the arc detection coil 35/56 is formed between the layers L2 to L5 to form a spiral coil
  • the self-detection circuit 38/58 is formed between the layers L3 to L4 between them to form a spiral coil and be located in the inner circle of some sections of the arc detection coil.
  • the spiral coils of circuit 38/58 are coaxial (for example, they are all centered on the air axis AC).
  • the self-detection circuit 38/58 is configured to inject a white noise or high-frequency signal into the air shaft AC, thereby detecting whether the arc detection coil 35/56 can detect the white noise or high-frequency signal in the air shaft AC to provide Self-detection function of arc detection coil and arc detection unit.
  • FIG. 13 shows a partial enlarged cross-sectional view of a circuit board 30/50 according to yet another embodiment of the present disclosure.
  • the circuit board 30/50 is only a circuit board with four layers (L1 ⁇ L4) of copper foil.
  • the arc detection coil 35/56 is formed between layers L2 to L3 to form a spiral coil
  • the self-detection circuit 38/58 is formed between layers L1 to L4 to form a spiral coil and surrounds part of the arc detection coil.
  • the arc detection coil 35/56 is formed between layers L1 to L4 to form a spiral coil
  • the self-detection circuit 38/58 is formed between layers L2 to L3 to form a spiral coil.
  • a spiral coil is formed and is located in the inner circle of a section of the arc detection coil.
  • the solar inverter of the present disclosure integrates arc detection coils and self-detection circuits on a circuit board. This approach helps save cost and space, and makes it easier to conduct arc detection and self-function detection for each solar string.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un onduleur solaire, comprenant un boîtier, au moins une carte de circuit imprimé disposée dans le boîtier, un capteur de courant disposé sur la carte de circuit imprimé, une bobine de détection d'arc disposée sur la carte de circuit imprimé, un circuit d'autodétection disposé sur la carte de circuit imprimé, et au moins une borne d'entrée de courant continu disposée sur le boîtier et connectée à la carte de circuit imprimé. Le circuit d'auto-détection est configuré pour délivrer un signal de test pour la détection par la bobine de détection d'arc. La borne d'entrée de courant continu est configurée pour délivrer un courant à travers la bobine de détection d'arc, et le capteur de courant est configuré pour détecter l'amplitude du courant traversant la borne d'entrée de courant continu.
PCT/CN2023/078111 2022-08-11 2023-02-24 Onduleur solaire Ceased WO2024031960A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210963275.X 2022-08-11
CN202210963275 2022-08-11

Publications (1)

Publication Number Publication Date
WO2024031960A1 true WO2024031960A1 (fr) 2024-02-15

Family

ID=89850547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/078111 Ceased WO2024031960A1 (fr) 2022-08-11 2023-02-24 Onduleur solaire

Country Status (2)

Country Link
CN (1) CN117595682A (fr)
WO (1) WO2024031960A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118174573A (zh) * 2024-03-26 2024-06-11 深圳市东创科技有限公司 一种太阳能储能逆变器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107728012A (zh) * 2016-08-11 2018-02-23 Abb瑞士股份公司 用于直流电气母线的电弧故障检测装备
CN110854104A (zh) * 2018-08-21 2020-02-28 半导体元件工业有限责任公司 电流传感器封装件
CN111108569A (zh) * 2018-08-28 2020-05-05 株式会社高本技术 适用于断路器的独立型瞬时电流检测用印刷电路板电流互感器器件
CN215375643U (zh) * 2021-04-02 2021-12-31 阳光电源股份有限公司 一种电弧检测传感器及电弧检测电路
CN114675101A (zh) * 2022-03-07 2022-06-28 福州大学 一种故障电弧保护电器特性测试方法
CN114878996A (zh) * 2022-06-14 2022-08-09 江苏纳通能源技术有限公司 带自检功能的电弧检测电路、装置和检测方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW283274B (fr) * 1994-11-08 1996-08-11 Sansha Denki Seisakusho Co Ltd
EP2806518B1 (fr) * 2013-05-24 2021-01-27 Delta Electronics (Thailand) Public Co., Ltd. Détection d'arc de serie sur la base des composants harmoniques dans le signal de courant CC
ES2880955T3 (es) * 2016-08-11 2021-11-26 Fimer S P A Una disposición de detección de fallas de arco para bus eléctrico de CC
US10630089B2 (en) * 2016-11-14 2020-04-21 Eaton Intelligent Power Limited Electric vehicle charging circuit breaker
KR102021927B1 (ko) * 2019-04-02 2019-09-17 (주)신호엔지니어링 화재발생 예측 기능을 갖는 태양광 발전 시스템
CN111726079B (zh) * 2020-06-18 2021-12-10 上海交通大学 主动式光伏组串电弧故障检测方法及系统
CN114280440B (zh) * 2022-03-04 2022-06-28 固德威技术股份有限公司 一种光伏直流电弧故障识别装置、识别方法及光伏系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107728012A (zh) * 2016-08-11 2018-02-23 Abb瑞士股份公司 用于直流电气母线的电弧故障检测装备
CN110854104A (zh) * 2018-08-21 2020-02-28 半导体元件工业有限责任公司 电流传感器封装件
CN111108569A (zh) * 2018-08-28 2020-05-05 株式会社高本技术 适用于断路器的独立型瞬时电流检测用印刷电路板电流互感器器件
CN215375643U (zh) * 2021-04-02 2021-12-31 阳光电源股份有限公司 一种电弧检测传感器及电弧检测电路
CN114675101A (zh) * 2022-03-07 2022-06-28 福州大学 一种故障电弧保护电器特性测试方法
CN114878996A (zh) * 2022-06-14 2022-08-09 江苏纳通能源技术有限公司 带自检功能的电弧检测电路、装置和检测方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118174573A (zh) * 2024-03-26 2024-06-11 深圳市东创科技有限公司 一种太阳能储能逆变器
CN118174573B (zh) * 2024-03-26 2025-07-25 深圳市东创科技有限公司 一种太阳能储能逆变器

Also Published As

Publication number Publication date
CN117595682A (zh) 2024-02-23

Similar Documents

Publication Publication Date Title
US10673224B2 (en) Arc fault detection arrangement for a DC electric bus
CN1007312B (zh) 大型三相发电机内电枢电流的监控
CN104782012A (zh) 具有电弧检测的差动电流监控装置
WO2024031960A1 (fr) Onduleur solaire
US20240030865A1 (en) Chain of Power Devices
US10673223B2 (en) Arc fault detection arrangement for a DC electric bus
TWI857502B (zh) 太陽能逆變器
JP7551862B2 (ja) 太陽光発電インバータ
JPH0670665B2 (ja) 非接触電界磁界センサ
CN219750132U (zh) 一种用于飞机探测环路检测便捷转接设备
CN118444105A (zh) 拉弧检测装置、拉弧检测方法及光伏发电系统
CN201130213Y (zh) 一种感应高压铠装电缆带电状态的高压带电显示闭锁装置
JP4791938B2 (ja) 電力変換装置
CN115549464A (zh) Iter稳态磁场测试平台电源机箱制造用电磁兼容性工艺
CN209446733U (zh) 便于接线的高压断路器自动化检测装置
CN101345470B (zh) 一种变流器
TWM621241U (zh) 含電壓偵測功能之故障指示裝置
CN224177956U (zh) 一种电池接入控制电路及混合逆变器
CN206533123U (zh) 防雷装置
US12306268B2 (en) Health monitoring in electric motor control systems
CN223843521U (zh) 固态断路器
CN223828757U (zh) 一种接线端子结构及电气设备
CN220253948U (zh) 智能监测装置及开关柜
CN210894581U (zh) 一种用于局部放电试验的接地箱组件
EP4024688A2 (fr) Couplage des dispositifs électroniques de puissance

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23851196

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23851196

Country of ref document: EP

Kind code of ref document: A1