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Local relay protection control device and relay projection method

A relay protection and control device technology, applied in emergency protection circuit devices, electrical components, etc., can solve problems such as low reliability, achieve high reliability, and reduce the possibility of malfunction

Active Publication Date: 2017-05-17
XUJI GRP +6
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an in-situ relay protection control device and a relay protection method to solve the problem of low reliability of conventional relay protection methods

Method used

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  • Local relay protection control device and relay projection method

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] Such as figure 1 As shown, the in-situ relay protection control device provided by the present invention includes two completely independent control modules, and these two control modules are respectively called the main control module and the start-up control module for their respective functions. In this implementation In the example, the two control modules are two completely independent CPU systems installed on one board, and correspondingly, these two CPU systems are respectively called the main CPU and the boot CPU.

[0018] In order to save space, the CPUs in these two independent CPU systems are CPU chips with high integration and low power consumption, such as the chip ZYNQ7020, which is integrated with FPGA, and the peripheral RAM, Flash and other devices of each CPU chip are also completely independent. . Using a highly integrated chip, on...

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Abstract

The invention relates to a local relay protection control device and a relay protection method. The relay protection method comprises the steps of respectively transmitting related data information of a power system to a master control module and a starting control module; performing starting logic distinguishing by the starting control module according to the received related data information, and performing protection logic distinguishing and starting logic distinguishing by the master control module according to the received related data information; and outputting a protection action signal when the starting logic distinguishing performed by the starting control module and the master control module acts and the protection logic distinguishing acts. Compared with a relay protection mode for directly performing protection logic judgment, the relay protection module has the advantages that the probability of local protection misoperation is reduced, so that the requirement of high relay protection reliability of local protection in an extremely severe running environment can be met.

Description

technical field [0001] The invention relates to an in-situ relay protection control device and a relay protection method, and belongs to the technical field of in-situ relay protection for power systems. Background technique [0002] The relay protection device is an important part of the power system, and it plays a very important role in ensuring the safe operation of the system. When the system fails, it removes the faulty equipment and contributes to the safe operation of the system, but the incorrect action of the relay protection also causes great harm to the system. Relay protection devices require the unity of reliability, selectivity, sensitivity and rapidity, among which reliability is the most important requirement for relay protection devices. [0003] The in-situ protection device is directly installed in the switchyard or integrated with the primary equipment. Due to the direct outdoor unprotected installation method, the operating environment is harsh. At the...

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Application Information

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IPC IPC(8): H02H7/26
CPCH02H7/261
Inventor 李宝伟裘愉涛金全仁樊占峰倪传坤王松王振华周富强李旭李文正程天保冯秋芳戚宣威董新涛方正席颖颖
Owner XUJI GRP
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