WO2018137142A1 - 核电站优先级管理系统 - Google Patents

核电站优先级管理系统 Download PDF

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Publication number
WO2018137142A1
WO2018137142A1 PCT/CN2017/072490 CN2017072490W WO2018137142A1 WO 2018137142 A1 WO2018137142 A1 WO 2018137142A1 CN 2017072490 W CN2017072490 W CN 2017072490W WO 2018137142 A1 WO2018137142 A1 WO 2018137142A1
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WIPO (PCT)
Prior art keywords
priority management
module
interface
level
security level
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/CN2017/072490
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English (en)
French (fr)
Inventor
江国进
程康
齐敏
石桂连
左新
张春雷
高超
周飞
杨文宇
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.)
China General Nuclear Power Corp
China Techenergy Co Ltd
Original Assignee
China General Nuclear Power Corp
China Techenergy Co Ltd
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Application filed by China General Nuclear Power Corp, China Techenergy Co Ltd filed Critical China General Nuclear Power Corp
Priority to HUE17894424A priority Critical patent/HUE070932T2/hu
Priority to EP17894424.5A priority patent/EP3576103B1/en
Priority to PCT/CN2017/072490 priority patent/WO2018137142A1/zh
Publication of WO2018137142A1 publication Critical patent/WO2018137142A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/04—Safety arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin

Definitions

  • the invention relates to the technical field of nuclear power plant safety control, in particular to a nuclear power plant, in particular to a priority management system of a non-safety system.
  • the priority management system is an interface management device between the nuclear power plant digital instrument control system and other systems and field devices. It is mainly used to prioritize the commands sent by each system or device to ensure the safe operation of the nuclear power plant.
  • the existing priority management system has strong customization features and low engineering applicability.
  • the priority management system only has a hard-wired interface, or the communication interface only supports a security-level communication interface, or the communication interface only supports non-security.
  • the level communication interface results in the need to access a large number of hardwired lines for communication security level conversion when accessing device level manual control commands from non-secure or security level systems.
  • the priority management system when the priority management system adopts the hard wiring method, it directly receives instructions from the security dedicated drive cabinet, the safety related control cabinet, the diversified drive control cabinet, the severe accident control cabinet and the power plant standard automation system.
  • the command is output through the priority management module and the drive control module, and the drive device for driving the field actuator collects feedback information of the field actuator, supports self-diagnosis function, supports periodic test of the safety system, and provides feedback information of the field actuator.
  • Information such as diagnostic results and periodic test results are transmitted to the nuclear power plant DCS system.
  • Nuclear power plant electrical and instrument control systems are divided into three levels: safety level (1E), safety related level (SR) and non-safety level (NC).
  • Priority module design should be different from digital systems to avoid common cause failures (CCF); common cause failures are failures that cause two or more structures, systems, or components to fail due to a specific single event or cause. Therefore, the priority module should be independent of the digital system and its function cannot be affected by the digital system.
  • CCF common cause failures
  • the object of the present invention is to provide a nuclear power plant priority management system, which is convenient for the system to receive control commands of various security level systems, and avoids accessing a large number of hard wires, thereby ensuring good engineering applicability of the system.
  • the nuclear power plant priority management system includes a priority management device, and the priority management device is connected with a hardwired interface and a security level command interface; the priority management device is also connected with a non-security level communication interface through a hardwired interface.
  • the non-security level communication interface is for connecting to a non-security level system and receiving non-security level device level control instructions from the non-security level system.
  • the non-security level communication interface comprises at least two identical transceivers, the at least two transceivers being connected to the non-security level system for receiving the non-security level device from the non-security level system Level control instructions.
  • the non-security level communication interface further includes a communication connection module, where the communication connection module is connected between the hardwired interface corresponding to the non-security level communication interface and the at least two transceivers,
  • the non-secure level device level control instructions received from one of the at least two transceivers are transmitted to the priority management device via the corresponding hardwired interface.
  • the non-security level communication interface further includes a communication conversion module, and the communication conversion module is connected between the hardwired interface corresponding to the non-security level communication interface and the communication connection module, and is used for The format of the non-security level device level control command received by the communication connection module is converted into a format corresponding to the corresponding hardwired interface, and transmitted to the priority management device through the corresponding hardwired interface.
  • the non-security level communication interface further includes a communication protocol module, and the communication protocol module is connected between the communication conversion module and the communication connection module, and is configured to communicate from the communication according to a set communication protocol.
  • the non-security level device level control command received by the connection module is transmitted to the communication conversion module.
  • the priority management device is further connected to the non-security level communication interface by a feedback module for transmitting a feedback signal in one direction.
  • At least one of the hardwired interface and the security level command interface is provided with a signal isolation unit for electrically isolating and/or communicating the signals.
  • the priority management device is further connected to the first priority logic module and the second priority logic module, where the first priority logic module and the second priority logic module are connected to the execution device;
  • the priority management device outputs a control instruction to the execution device through one of the first priority logic module and the second priority logic module.
  • the priority management system further includes a security self-diagnosis device;
  • the diagnostic device includes an output drive loop detection module coupled to the priority management device, the output drive loop detection module including a connection to the priority management device, and a connection to the first priority logic module and a second a voltage detection module and/or a current detection module connected to the output control module between the priority logic module and the execution device, and a pulse generation module connected to the priority management device; and/or the safety self-diagnosis
  • the device includes an acquisition fault diagnostic module coupled to the priority management device.
  • the priority management system further includes an indicator light, where the indicator light is connected to the priority management device, and is used to indicate the working status information of the priority management device.
  • the nuclear power plant priority management system integrates a hardwired interface, a security level communication interface, and a non-security level communication interface on the priority management device as a communication interface of the priority management system, facilitating system reception from each Safety-level system control instructions help to improve the engineering applicability of the system; and non-secure communication interfaces can be directly connected to non-safety-level systems and establish redundant communication links to ensure non-safety-level device-level control commands Stable reception, and through the hard-wired interface to ensure the stable transmission of non-safety-level device-level control commands, and without the need to access a large number of hard wiring, greatly improving the system's ease of use in engineering implementation.
  • FIG. 1 is a block diagram showing a nuclear power plant priority management system according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram showing a non-security level communication device of a nuclear power plant priority management system according to an embodiment of the present invention
  • FIG. 3 is a block diagram showing an output drive loop detecting module of a nuclear power plant priority management system according to an embodiment of the present invention.
  • Priority management device 20, hardwired interface; 30, security level command interface; 31, security level system; 40, non-security level communication interface; 41, non-security level system; 42, transceiver; Module; 44, communication protocol module; 45, communication conversion module; 46, feedback module; 50, first priority logic module; 51, second priority logic module; 52, output control module; 60, security self-diagnosis device; 61, pulse generation module; 62, voltage detection module; 63, current detection module; 70, indicator light; 80, execution equipment.
  • the communication interface of the nuclear power plant priority management system includes a hardwired interface, a security level communication interface, and a non-security level communication interface to facilitate access.
  • Device-level manual control commands from both safety-grade and non-safety-level systems without the need for access to a large number of hard-wired connections, ensuring that the priority management system has good engineering applicability to meet the needs of various types of nuclear power plants for priority management systems Engineering application needs.
  • the nuclear power plant priority management system of the embodiment of the present invention includes a priority management device 10, and the priority management device 10 is integrated with a hardwired interface 20, a security level command interface 30, and a non-security level communication interface 40.
  • the non-security level communication interface 40 is connected to the priority management device 10 through the hardwired interface 20, and the non-security level communication interface is used to connect to the non-security level system 41, and the non-security level device level control command is received from the non-security level system 41. And transmitting the non-security level device level control instruction to the priority management device 10 through the hardwired interface 20.
  • the hardwired interface 20, the security level command interface 30, and the non-security level communication interface 40 are integrated on the priority management device 10, which is equivalent to the communication interface or communication input of the priority management system including a hardwired interface and supporting security level communication. Communicate with non-security level.
  • the non-security level communication interface 40 can directly communicate with the non-security level system 41, and receive the non-security level device level control instructions from the non-security level system 41, and the communication interface of the priority management system in the prior art needs to pass. Accessing hard wiring or performing communication security level conversion, indirectly receiving non-security level device level control commands from the non-security level system 41, can effectively avoid problems such as hard wiring crossing the factory building and occupying cabinet space, which is greatly convenient The implementation of the project will help to achieve an overall plan for controlling the safe operation of nuclear power plants.
  • the priority management device 10 receives the control commands of each security level system through the hardwired interface 20, the security level command interface 30, and the non-security level communication interface 40, and performs preferred management, specifically through the CPLD (Complex Programmable Logic). Device, complex programmable control logic device) implementation. Multiple hard interfaces are integrated on the priority management device 10 The line interface 20, and the priority management device 10 is connected to the security level command interface 30 through the hardwired interface 20, and is connected to the non-security level communication interface 40 through the hardwired interface 20, so that the priority management device 10 can be stably received. Control instructions for each level.
  • CPLD Complex Programmable Logic
  • Device Complex programmable control logic device
  • the safety level command interface 30 can be coupled to the safety level system 31 in the nuclear power plant for receiving safety level control commands from the safety level system 31.
  • the safety level command interface 30 can receive 1E level automatic or manual control commands from the 1E (Safety Level of Nuclear Power Plant)-DCS (Distributed Control System) system.
  • the non-safety level communication interface 40 can be coupled to a non-safety level system 41 in the nuclear power plant for receiving non-safety level device level manual control commands from the non-safety level system 41.
  • the non-security level communication interface 40 can receive NC-DCS device level manual control commands from the NC (Non-Safety Level of Nuclear Power Plant)-DCS system.
  • the hardwired interface 20 can be coupled to other systems or field devices in the nuclear power plant and receive associated control commands.
  • the hardwired interface 20 can receive a variety of back commands from a versatile back system or a severe post-accident command from a post-critical accident drive system.
  • the non-security level communication interface 40 includes two (or more than two) identical transceivers 42, two identical transceivers 42 and a non-security level system. 41 connection for receiving non-secure level device level control commands from the non-security level system 41.
  • the two transceivers 42 are identical in structure and are connected in parallel to the non-security level system 41, which is equivalent to establishing parallel redundant communication between the non-security level communication interface 40 and the non-security level system 41 via the two transceivers 42.
  • the physical layer channel of the link when one transceiver 42 itself or the connection line fails, utilizes another transceiver 42 to ensure that the non-secure level communication interface 40 can stably receive non-security level device level control commands.
  • the non-security level communication interface 40 further includes a communication connection module 43 connected between the hardwired interface 20 corresponding to the non-security level communication interface 40 and the two transceivers 42 for transmitting and receiving from the two transceivers 42.
  • a received non-security level device level control command in the device 42 is transmitted to the priority management device 10.
  • the communication connection module 43 is communicatively coupled to the two transceivers 42 and establishes a communication connection with the hardwired interface 20 for receiving non-security level device level control commands from the two transceivers 42 and will receive The incoming non-secure level device level control commands are transmitted to the priority management device 10 via the hardwired interface 20.
  • the communication connection module 43 is for two transceivers 42 Whether to transmit non-security level device level control commands for diagnosis, if two transceivers 42 complete the transmission of non-safe level device level control commands, then one of the two non-safe level device level control commands received is sent to the hardwired Interface 20; if only one transceiver 42 completes the transmission of the non-security level device level control command, the received non-security level device level control command is sent to the hardwired interface 20.
  • the communication connection module 43 may be a CPLD chip integrated with "and/or" logic.
  • the non-security level communication interface 40 further includes a communication conversion module 45 connected between the hardwired interface 20 corresponding to the non-security level communication interface 40 and the communication connection module 43 for receiving from the communication connection module 43.
  • the non-security level device level control instructions convert the format to a format corresponding to the hardwired interface 20 to transmit the format converted non-secure level device level control commands to the priority management device 10 via the hardwired interface 20.
  • the communication conversion module 45 may be an MCU (Micro Control Unit, or a microcontroller) integrated with the above communication and conversion functions.
  • the non-security level communication interface 40 may further include a communication protocol module 44 connected between the communication connection module 43 and the communication conversion module 45 for receiving non-security level device level control instructions from the communication connection module 43. And transmitting the non-security level device level control command to the communication conversion module 45 in accordance with the set communication protocol.
  • the communication protocol module may be a DP (Decentralized Periphery) communication protocol chip, which is used for implementing data link layer parsing and buffer processing of the DP communication protocol, and uses the DP communication protocol to ensure stable and fast transmission of non-secure level device level control instructions. .
  • the priority management device 10 is also coupled to the non-security level communication interface 40 via the feedback module 46 for unidirectionally transmitting feedback signals to the non-security level communication interface 40.
  • the priority management device 10 receives the non-security level device level control instruction from the non-security level communication interface 40 through the hardwired interface 20, and after the priority management, the status feedback signal can be fed back to the non-security level communication interface 40 through the feedback module 46.
  • the feedback module 46 can receive the status feedback signal from the priority management device 10 based on the SPI (Serial Peripheral Interface) communication, and send the status feedback signal to the non-security level communication interface 40 to make the status feedback.
  • the signals are sequentially transmitted to the communication conversion module 45, the communication protocol module 44, the communication connection module 43, and the transceiver 42, and are fed back to the non-security level system 41 through the transceiver 42.
  • the hard-wired interface 20 and the security-level command interface 30 are provided with signal isolation
  • the off-unit is used for electrical isolation, communication isolation or functional isolation of the transmitted signals.
  • the hard-wired interface 20 in this embodiment is designed with a unidirectional isolation signal interface to meet the isolation requirements of automatic control commands or device-level control commands for ensuring various security levels, thereby improving the reliability of the priority management system.
  • first priority logic module 50 and second priority logic module 51 are also connected to the priority management device 10.
  • the first priority logic module 50 and the second priority logic module 51 are connected to the execution device 80, and the priority management device 10 outputs a control command to the execution device 80 through the first priority logic module 50 or the second priority logic module 51.
  • the first priority logic module 50 and the second priority logic module 51 form parallel priority logic, that is, the priority management system implements priority management logic through redundant hardware, which can effectively ensure the stability of the control instruction. Output, improve the reliability of priority management; and, can effectively avoid the problem of software common cause failure.
  • the priority management device 10 pairs the automatic control commands acquired through the first hardwired interface 20, or the 1E level automatic control commands collected through the security level command interface 30, or the NC-DCS devices collected through the non-security level communication interface 40.
  • the level manual control instruction performs priority management, and the preferred control instruction is sent to the first priority logic module 50 and the second priority logic module 51, respectively, through the first priority logic module 50 or the second priority logic module 51.
  • the execution device 80 outputs a control command.
  • an output control module 52 is connected between the first priority logic module 50 and the second priority logic module 51 and the execution device 80, and the output control module can receive the first priority through "and/or" logic.
  • the control command sent by one of the level logic module 50 and the second priority logic module 51 is output to the execution device 80.
  • the first priority logic module 50 and the second priority logic module 51 may be CPLDs or logic circuits with the same priority logic integrated therein.
  • the priority management system of the present embodiment further includes a secure self-diagnostic device 60.
  • the safety self-diagnosis device 60 is connected to the priority management device 10 for detecting and diagnosing a control signal output by the priority management device to ensure that the control signal does not cause the execution device 80 to malfunction, thereby controlling the nuclear power plant to operate in a safe state, thereby improving The priority management system is reliable.
  • the safety self-diagnosis device 60 includes an output drive loop detection module with the priority management device 10.
  • the drive loop detection module specifically includes a pulse generation module 61, a voltage detection module 62, and a current detection module 63.
  • Pulse generation module 61 For connecting to the priority management device 10, for transmitting a 1ms pulse enable signal to the priority management device 10, the drive priority management device 10 actively outputs an experimental control command of 1 ms; the voltage detection module 62 and the current detection module 63 respectively Connected to the priority management device 10 and connected to the output control module 52 that connects the first priority logic module 50 and the second priority logic module 51 and the execution device 80 for the output control module 52 from the first priority logic
  • the experimental control command received by the module 50 and the second priority logic module 51 performs voltage and current detection, and transmits the detection result to the priority management device 10 for state readback detection.
  • the detection result indicates that the experimental control command is the expected control command, it is determined that the control signal output by the priority management device 10 is normal, and the priority management device 10 may continue to output the control command to the execution device 80; if the detection result indicates that the experimental control command is different from The expected control command determines that the control signal output by the priority management device 10 is incorrect, the circuit that outputs the control command by the priority management device 10 is faulty, and the control command cannot be continuously output to the execution device 80 to avoid causing the execution device 80 to malfunction. Move, affecting the safe operation of nuclear power plants.
  • the secure self-diagnostic device 60 may also include a fault collection diagnostic module coupled to the priority management device 10.
  • the fault collection diagnostic module is connected to a communication interface or a communication input terminal (for example, the above-described plurality of hardwired interfaces 20) connected to the priority management device 10, and performs fault diagnosis on the control command collected by the priority management device 10.
  • the priority management system of the present embodiment further includes an indicator light 70, and the indicator light 70 is connected to the priority management device 10 for indicating the working state information of the priority management device 10.
  • the indicator light 70 can indicate the power status information, the fault status information, the communication link status information, the control command output status information, etc. by displaying different setting colors, so as to facilitate the worker to obtain the indication indicated by the indicator light 70. information.
  • the nuclear power plant priority management system of the embodiment of the invention integrates a hardwired interface, a security level communication interface and a non-security level communication interface on the priority management device as a communication interface of the priority management system, facilitating the system to receive the security levels from the security level.
  • Control instructions of the system help to improve the engineering applicability of the system;
  • the non-secure communication interface can directly connect with the non-security level system, and establish a redundant communication link to ensure stable reception of non-security level device level control commands, and ensure non-security level through hardwired interface and communication. Stable and fast transmission of device-level control commands, and avoiding access to a large number of hardwirings, greatly improving the ease of use of the system in engineering implementation;
  • the preferred level management logic is implemented by the redundant hardware to ensure that the priority management device can stably output the control command, thereby improving the priority management reliability of the system;
  • the self-diagnosis device performs fault detection on the control command input or output by the priority management device, so as to avoid the control command outputting the fault, causing the execution device to malfunction, improving the reliability and safety of the system, and helping to control the nuclear power plant.
  • the safe state is running.

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Abstract

一种核电站优先级管理系统，该核电站优先级管理系统包括优先级管理装置(10)，优先级管理装置(10)上连接有硬接线接口(20)、安全级指令接口(30)；优先级管理装置(10)上还通过硬接线接口（20)连接有非安全级通信接口(40)，非安全级通信接口(40)用于与非安全级系统(41)连接并从非安全级系统(41)接收非安全级设备级控制指令。该核电站优先级管理系统集成有硬接线接口(20）、安全级指令接口(30)和非安全级通信接口(40)，方便接收来自各安全等级系统的控制指令，具有良好的工程适用性；而且，通过非安全级通信接口(40)与非安全级系统(41)直接连接，无需接入大量的硬接线，极大地提高了系统在工程实施方面的易用性。

Description

核电站优先级管理系统 技术领域
本发明涉及核电站安全控制技术领域，尤其涉及一种核电站，特别是非安全系统的优先级管理系统。
背景技术
优先级管理系统是核电站数字化仪控系统以及其他系统与现场设备之间的接口管理设备，主要用于对各系统或设备发送的指令进行优先级管理，以保证核电站的安全运行。现有的优先级管理系统定制性特点较强，工程实施适用性较低，通常表现为优先级管理系统仅具有硬接线接口，或者通信接口仅支持安全级通信接口，或者通信接口仅支持非安全级通信接口，导致在接入来自非安全级系统或安全级系统的设备级手动控制指令时，需要接入大量的硬接线进行通信安全等级的转换。
在CN104409123A中提到，当优先级管理系统采用硬接线方式时，其直接接收来自安全专设驱动机柜、安全相关控制柜、多样化驱动控制柜、严重事故控制柜和电厂标准自动化系统的指令，指令通过优先级管理模块和驱动控制模块进行输出，驱动现场执行器的驱动装置采集现场执行器的反馈信息、支持自诊断功能、支持安全系统的定期试验，并将现场执行器的反馈信息、自诊断结果、定期试验结果等信息传送到核电站DCS系统。核电站电气和仪控系统分为：安全级(1E)、安全相关级(SR)及非安全级(NC)三个级别。优先级模块设计应不同于数字化系统，避免共因故障(CCF)；共因故障指的是由特定的单一事件或起因导致两个或多个构筑物、系统或部件失效的故障。因此优先级模块应独立于数字化系统，其功能不能受数字化系统的影响。
其中，尤其是在优先级管理系统接入来自非安全级系统的设备级手动控制指令时，接入的大量的硬接线跨接非安全级厂房和安全级厂房，硬接线的距离长、数量多、占用机柜空间，导致工程实施极为不便。
发明内容
本发明的目的在于提供一种核电站优先级管理系统，以方便系统接收各安全等级系统的控制指令，同时避免接入大量的硬接线，从而保证系统具有良好的工程适用性。
根据本发明实施例提供的一种核电站优先级管理系统。所述核电站优先级管理系统包括优先级管理装置，所述优先级管理装置上连接有硬接线接口和安全级指令接口；所述优先级管理装置上还通过硬接线接口连接有非安全级通信接口，所述非安全级通信接口用于与非安全级系统连接并从所述非安全级系统接收非安全级设备级控制指令。
可选地，所述非安全级通信接口包括至少两个相同的收发器，所述至少两个收发器与非安全级系统连接，用于从所述非安全级系统接收所述非安全级设备级控制指令。
可选地，所述非安全级通信接口还包括通信连接模块，所述通信连接模块连接在所述非安全级通信接口对应的硬接线接口与所述至少两个收发器之间，用于将从所述至少两个收发器中的一个接收的所述非安全级设备级控制指令通过所述对应的硬接线接口传输到所述优先级管理装置。
可选地，所述非安全级通信接口还包括通信转换模块，所述通信转换模块连接在所述非安全级通信接口对应的硬接线接口与所述通信连接模块之间，用于将从所述通信连接模块接收的所述非安全级设备级控制指令的格式转换为所述对应的硬接线接口对应的格式，并通过所述对应的硬接线接口传输到所述优先级管理装置。
可选地，所述非安全级通信接口还包括通信协议模块，所述通信协议模块连接在所述通信转换模块与所述通信连接模块之间，用于按照设定通信协议将从所述通信连接模块接收的所述非安全级设备级控制指令传输到所述通信转换模块。
可选地，所述优先级管理装置还通过用于单向传输反馈信号的反馈模块与所述非安全级通信接口连接。
可选地，硬接线接口和所述安全级指令接口中的至少一个中设置有用于对信号进行电气隔离和/或通信隔离的信号隔离单元。
可选地，所述优先级管理装置上还连接有第一优先级逻辑模块和第二优先级逻辑模块，所述第一优先级逻辑模块和第二优先级逻辑模块与执行设备连接；所述优先级管理装置通过所述第一优先级逻辑模块和第二优先级逻辑模块中的一个向所述执行设备输出控制指令。
可选地，所述优先级管理系统还包括安全自诊断装置；所述安全自 诊断装置包括与所述优先级管理装置连接的输出驱动回路检测模块，所述输出驱动回路检测模块包括与所述优先级管理装置连接，且与连接在所述第一优先级逻辑模块和第二优先级逻辑模块与所述执行设备之间的输出控制模块连接的电压检测模块和/或电流检测模块，以及与所述优先级管理装置连接的脉冲发生模块；和/或，所述安全自诊断装置包括与所述优先级管理装置连接的采集故障诊断模块。
可选地，所述优先级管理系统还包括指示灯，所述指示灯与所述优先级管理装置连接，用于指示所述优先级管理装置的工作状态信息。
根据本发明实施例提供的核电站优先级管理系统，通过在优先级管理装置上集成硬接线接口、安全级通信接口和非安全级通信接口，作为优先级管理系统的通信接口，方便系统接收来自各安全级的系统的控制指令，有助于提高系统的工程适用性；以及，非安全通信接口可以直接与非安全级系统连接，并建立冗余的通信链路来保证非安全级设备级控制指令的稳定接收，和通过硬接线接口来保证非安全级设备级控制指令的稳定传输，而且，无需接入大量的硬接线，极大地提高了系统在工程实施方面的易用性。
附图说明
图1是示出根据本发明实施例的一种核电站优先级管理系统的结构示意图；
图2是示出根据本发明实施例的一种核电站优先级管理系统的非安全级通信装置的结构示意图；
图3是示出根据本发明实施例的一种核电站优先级管理系统的输出驱动回路检测模块的结构示意图。
附图标记说明：
10、优先级管理装置；20、硬接线接口；30、安全级指令接口；31、安全级系统；40、非安全级通信接口；41、非安全级系统；42、收发器；43、通信连接模块；44、通信协议模块；45、通信转换模块；46、反馈模块；50、第一优先级逻辑模块；51、第二优先级逻辑模块；52、输出控制模块；60、安全自诊断装置；61、脉冲发生模块；62、电压检测模块；63、电流检测模块；70、指示灯；80、执行设备。
具体实施方式
下面结合附图(若干附图中相同的标号表示相同的元素)和实施例，对本发明实施例的具体实施方式作进一步详细说明。以下实施例用于说明本发明，但不来限制本发明的范围。
图1是示出根据本发明实施例的一种核电站优先级管理系统的结构示意图，该核电站优先级管理系统的通信接口包括硬接线接口、安全级通信接口和非安全级通信接口，方便接入来自安全级系统和非安全级系统的设备级手动控制指令，而且无需接入大量的硬接线，从而保证该优先级管理系统具有良好的工程适用性，满足各种类型核电站对优先级管理系统的工程应用需求。
如图1所示，本发明实施例的核电站优先级管理系统包括优先级管理装置10，优先级管理装置10上集成有硬接线接口20、安全级指令接口30和非安全级通信接口40。其中，非安全级通信接口40通过硬接线接口20与优先级管理装置10连接，非安全级通信接口用于与非安全级系统41连接，从非安全级系统41接收非安全级设备级控制指令，并通过硬接线接口20向优先级管理装置10发送非安全级设备级控制指令。
硬接线接口20、安全级指令接口30和非安全级通信接口40集成在优先级管理装置10上，相当于该优先级管理系统的通信接口或通信输入端包括硬接线接口，且支持安全级通信和非安全级通信。将各接口与核电站中相应等级的系统进行通信连接，即可实现控制指令的直接接收，而且无需在通信连接中进行安全等级的转换，可以避免接入大量的硬接线，有效提高了该优先级管理系统的工程实施易用性。尤其是非安全级通信接口40可以直接与非安全级系统41进行通信连接，从非安全级系统41接收非安全级设备级控制指令，相对于现有技术中的优先级管理系统的通信接口需要通过接入硬接线或者进行通信安全等级转换，间接地从非安全级系统41接收非安全级设备级控制指令的方式，可以有效避免出现硬接线跨越厂房以及占用机柜空间等问题，极大程度地方便工程实施，有助于实现对控制核电站安全运行的整体规划。
本实施例中，优先级管理装置10通过硬接线接口20、安全级指令接口30和非安全级通信接口40，接收各安全等级系统的控制指令并进行优选管理，具体可以通过CPLD(Complex Programmable Logic Device，复杂可编程控制逻辑器件)实现。优先级管理装置10上集成有多个硬接 线接口20，而且优先级管理装置10通过硬接线接口20与安全级指令接口30连接，以及通过硬接线接口20与非安全级通信接口40连接，可以保证优先级管理装置10能够稳定地接收到各等级的控制指令。
在实际应用场景中，安全级指令接口30可以与核电站中的安全级系统31连接，用于接收来自安全级系统31的安全级控制指令。例如，安全级指令接口30可以从1E(核电站设备的安全等级)-DCS(Distributed Control System，分布式控制系统)系统接收1E级自动或手动控制指令。非安全级通信接口40可以与核电站中的非安全级系统41连接，用于接收来自非安全级系统41的非安全级设备级手动控制指令。例如，非安全级通信接口40可以从NC(核电站设备的非安全等级)-DCS系统接收NC-DCS设备级手动控制指令。硬接线接口20可以与核电站中的其他系统或现场设备连接并接收相关控制指令。例如，硬接线接口20可以从多样性后背系统接收多样性后背指令，或者从严重事故后驱动系统接收严重事故后指令。
如图2所示，在本实施例的优先级管理系统中，非安全级通信接口40包括两个(或者两个以上)相同的收发器42，两个相同的收发器42与非安全级系统41连接，用于从非安全级系统41接收非安全级设备级控制指令。
两个收发器42的结构相同，而且并行地与非安全级系统41连接，相当于在非安全级通信接口40与非安全级系统41之间，通过两个收发器42建立并行冗余的通信链路的物理层通道，在一个收发器42本身或者连接线路出现故障时，利用另一个收发器42来保证非安全级通信接口40能够稳定地接收到非安全级设备级控制指令。
优选地，非安全级通信接口40还包括通信连接模块43，通信连接模块43连接在非安全级通信接口40对应的硬接线接口20与两个收发器42之间，用于将从两个收发器42中的一个接收的非安全级设备级控制指令传输到优先级管理装置10。
具体地，通信连接模块43分别与两个收发器42通信连接，并建立与硬接线接口20之间的通信连接，用于从两个收发器42接收非安全级设备级控制指令，并将接收到的非安全级设备级控制指令通过硬接线接口20传输到优先级管理装置10。其中，通信连接模块43对两个收发器 42是否传输非安全级设备级控制指令进行诊断，若两个收发器42完成非安全级设备级控制指令的传输，则从接收的两个非安全级设备级控制指令任选一个发送至硬接线接口20；若只有一个收发器42完成非安全级设备级控制指令的传输，则将接收的非安全级设备级控制指令发送至硬接线接口20。例如，通信连接模块43可以为集成有“与/或”逻辑的CPLD芯片。
优选地，非安全级通信接口40还包括通信转换模块45，通信转换模块45连接在非安全级通信接口40对应的硬接线接口20与通信连接模块43之间，用于从通信连接模块43接收非安全级设备级控制指令，并将其格式转换为硬接线接口20对应的格式，以通过硬接线接口20将格式转换后的非安全级设备级控制指令传输至优先级管理装置10。例如，通信转换模块45可以为集成有上述通信及转换功能的MCU(Microcontroller Unit，微控制单元或者单片机)。
此外，非安全级通信接口40还可以包括通信协议模块44，通信协议模块44连接在通信连接模块43和通信转换模块45之间，用于从通信连接模块43接收非安全级设备级控制指令，并按照设定通信协议将非安全级设备级控制指令传输到通信转换模块45。例如，通信协议模块可以为DP(Decentralized Periphery)通信协议芯片，用于实现DP通信协议的数据链路层解析和缓存处理，利用DP通信协议来保证非安全级设备级控制指令的稳定和快捷传输。
优选地，优先级管理装置10还通过反馈模块46与非安全级通信接口40连接，用于向非安全级通信接口40单向传输反馈信号。
优先级管理装置10通过硬接线接口20从非安全级通信接口40接收非安全级设备级控制指令，在进行优先级管理之后，可以通过反馈模块46将状态反馈信号反馈至非安全级通信接口40。例如，反馈模块46可以基于SPI(Serial Peripheral Interface，串行外设接口)通信的方式从优先级管理装置10接收状态反馈信号，并将状态反馈信号发送至非安全级通信接口40，使状态反馈信号依次传输至通信转换模块45、通信协议模块44、通信连接模块43以及收发器42，并通过收发器42反馈至非安全级系统41。
优选地，上述硬接线接口20和安全级指令接口30中设置有信号隔 离单元，用于对传输的信号进行电器隔离、通信隔离或者功能隔离。例如，本实施例中的硬接线接口20采用单向隔离信号接口设计，以满足保证各安全等级的自动控制指令或设备级控制指令的隔离需求，从而提高该优先级管理系统的可靠性。
本实施例中，优先级管理装置10上还连接有相同的第一优先级逻辑模块50和第二优先级逻辑模块51。第一优先级逻辑模块50和第二优先级逻辑模块51与执行设备80连接，优先级管理装置10通过第一优先级逻辑模块50或第二优先级逻辑模块51向执行设备80输出控制指令。
第一优先级逻辑模块50和第二优先级逻辑模块51形成并行冗余的优先级逻辑，也就是说，该优先级管理系统通过冗余硬件实现优先级管理逻辑，可以有效保证控制指令的稳定输出，提高优先级管理的可靠性；而且，可以有效地避免出现软件共因失效的问题。
例如，优先级管理装置10对通过第一硬接线接口20采集的自动控制指令，或者通过安全级指令接口30采集的1E级自动控制指令，或者通过非安全级通信接口40采集的NC-DCS设备级手动控制指令进行优先级管理，将优选地控制指令分别发送至第一优先级逻辑模块50和第二优先级逻辑模块51，通过第一优先级逻辑模块50或第二优先级逻辑模块51向执行设备80输出控制指令。
如图3所示，第一优先级逻辑模块50和第二优先级逻辑模块51与执行设备80之间连接有输出控制模块52，输出控制模块可以通过“与/或”逻辑，接收第一优先级逻辑模块50和第二优先级逻辑模块51中的一个发送的控制指令，并输出至执行设备80。其中，第一优先级逻辑模块50和第二优先级逻辑模块51可以为内部集成有相同优先级逻辑的CPLD或者逻辑电路。
优选地，本实施例的优先级管理系统还包括安全自诊断装置60。安全自诊断装置60与优先级管理装置10连接，用于优先级管理装置输出的控制信号进行检测和诊断，以确保控制信号不会导致执行设备80误动，从而控制核电站以安全状态运行，提高该优先级管理系统的可靠性。
一种可行的实施方式中，如图3所示，安全自诊断装置60包括与优先级管理装置10输出驱动回路检测模块。驱动回路检测模块具体包括脉冲发生模块61、电压检测模块62和电流检测模块63。脉冲发生模块61 用于与优先级管理装置10连接，用于向优先级管理装置10发送1ms的脉冲使能信号，驱动优先级管理装置10主动输出1ms的实验控制指令；电压检测模块62和电流检测模块63分别与优先级管理装置10连接，并与连接第一优先级逻辑模块50和第二优先级逻辑模块51以及执行设备80的输出控制模块52连接，用于对输出控制模块52从第一优先级逻辑模块50和第二优先级逻辑模块51接收的实验控制指令进行电压和电流的检测，并将检测结果发送到优先级管理装置10进行状态回读检测。若检测结果指示实验控制指令为预期的控制指令，则确定优先级管理装置10输出的控制信号正常，优先级管理装置10可以继续向执行设备80输出控制指令；若检测结果指示实验控制指令不同于预期的控制指令，则确定优先级管理装置10输出的控制信号有误，优先级管理装置10输出控制指令的回路出现故障，不能继续向执行设备80输出控制指令，以避免导致执行设备80出现误动，影响核电站的安全运行。
当然，在其他实施方式中，安全自诊断装置60还可以包括与优先级管理装置10连接的故障采集诊断模块。故障采集诊断模块与优先级管理装置10连接的通信接口或通信输入端(例如，上述的多个硬接线接口20)连接，对优先级管理装置10采集的控制指令进行故障诊断。
此外，本实施例的优先级管理系统还包括指示灯70，指示灯70与优先级管理装置10连接，用于指示优先级管理装置10的工作状态信息。例如，指示灯70可以通过显示不同的设定颜色，对电源状态信息、故障状态信息、通信链路状态信息、控制指令输出状态信息等进行相应指示，以方便工作人员获取指示灯70所指示的信息。
本发明实施例的核电站优先级管理系统，通过在优先级管理装置上集成硬接线接口、安全级通信接口和非安全级通信接口，作为优先级管理系统的通信接口，方便系统接收来自各安全级的系统的控制指令，有助于提高系统的工程适用性；
以及，非安全通信接口可以直接与非安全级系统连接，并建立冗余的通信链路来保证非安全级设备级控制指令的稳定接收，并通过硬接线接口和通信的方式来保证非安全级设备级控制指令的稳定和快捷传输，而且，避免接入大量的硬接线，极大地提高了系统在工程实施方面的易用性；
以及，通过冗余硬件实现优选级管理逻辑，保证优先级管理装置能够稳定输出控制指令，提高了系统进行优先级管理可靠性；
以及，通过自诊断装置对优先级管理装置输入或输出的控制指令进行故障检测，以避免输出故障的控制指令导致执行设备误动，提高了系统的可靠性和安全性，有助于控制核电站以安全状态运行。
需要指出，根据实施的需要，可将本申请中描述的各个部件拆分为更多部件，也可将两个或多个部件或者部件的部分操作组合成新的部件，以实现本发明的目的。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (10)

  1. 一种核电站优先级管理系统，包括优先级管理装置(10)，所述优先级管理装置上连接有硬接线接口(20)和安全级指令接口(30)；
    所述优先级管理装置上还通过硬接线接口(20)连接有非安全级通信接口(40)，所述非安全级通信接口(40)用于与非安全级系统(41)连接并从所述非安全级系统(41)接收非安全级设备级控制指令。
  2. 根据权利要求1所述的核电站优先级管理系统，其中，所述非安全级通信接口(40)包括至少两个相同的收发器(42)，所述至少两个收发器(42)与非安全级系统(41)连接，用于从所述非安全级系统(41)接收所述非安全级设备级控制指令。
  3. 根据权利要求2所述的核电站优先级管理系统，其中，所述非安全级通信接口(40)还包括通信连接模块(43)，所述通信连接模块(43)连接在所述非安全级通信接口(40)对应的硬接线接口(20)与所述至少两个收发器(42)之间，用于将从所述至少两个收发器(42)中的一个接收的所述非安全级设备级控制指令通过所述对应的硬接线接口(20)传输到所述优先级管理装置(10)。
  4. 根据权利要求3所述的核电站优先级管理系统，其中，所述非安全级通信接口(40)还包括通信转换模块(45)，所述通信转换模块(45)连接在所述非安全级通信接口(40)对应的硬接线接口(20)与所述通信连接模块(43)之间，用于将从所述通信连接模块(43)接收的所述非安全级设备级控制指令的格式转换为所述对应的硬接线接口(20)对应的格式，并通过所述对应的硬接线接口(20)传输到所述优先级管理装置(10)。
  5. 根据权利要求4所述的核电站优先级管理系统，其中，所述非安全级通信接口(40)还包括通信协议模块(44)，所述通信协议模块(44)连接在所述通信转换模块(45)与所述通信连接模块(43)之间，用于按照设定通信协议将从所述通信连接模块(43)接收的所述非安全级设备级控制指令传输到所述通信转换模块(45)。
  6. 根据权利要求1所述的核电站优先级管理系统，其中，所述优先级管理装置(10)还通过用于单向传输反馈信号的反馈模块(46)与所述非安全级通信接口(40)连接。
  7. 根据权利要求1至6中任一项所述的核电站优先级管理系统，其中，所述硬接线接口(20)和所述安全级指令接口(30)中的至少一个中设置有用于对信号进行电气隔离和/或通信隔离的信号隔离单元。
  8. 根据权利要求1至7中任一项所述的核电站优先级管理系统，其中，所述优先级管理装置(10)上还连接有第一优先级逻辑模块(50)和第二优先级逻辑模块(51)，所述第一优先级逻辑模块(50)和第二优先级逻辑模块(51)与执行设备(80)连接；
    所述优先级管理装置(10)通过所述第一优先级逻辑模块(50)和第二优先级逻辑模块(51)中的一个向所述执行设备(80)输出控制指令。
  9. 根据权利要求8所述的核电站优先级管理系统，其中，所述优先级管理系统还包括安全自诊断装置(60)；
    所述安全自诊断装置(60)包括与所述优先级管理装置(10)连接的输出驱动回路检测模块，所述输出驱动回路检测模块包括与所述优先级管理装置(10)连接，且与连接在所述第一优先级逻辑模块(50)和第二优先级逻辑模块(51)与所述执行设备(80)之间的输出控制模块(52)连接的电压检测模块(62)和/或电流检测模块(63)，以及与所述优先级管理装置(10)连接的脉冲发生模块(61)；和/或，
    所述安全自诊断装置(60)包括与所述优先级管理装置(10)连接的采集故障诊断模块。
  10. 根据权利要求1至9中任一项所述的核电站优先级管理系统，其中，所述优先级管理系统还包括指示灯(70)，所述指示灯(70)与所述优先级管理装置(10)连接，用于指示所述优先级管理装置(10)的工作状态信息。
PCT/CN2017/072490 2017-01-24 2017-01-24 核电站优先级管理系统 Ceased WO2018137142A1 (zh)

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