应对继电保护多场景的数字仿真测试方法

doi:10.11930/j.issn.1004-9649.202405131

摘要/Abstract

摘要：

新能源大量接入使得继电保护面临适应性问题，提出一种应对继电保护多场景的数字仿真测试方法，可为继电保护性能评估提供有效技术支撑。从继电保护装置时序配合逻辑、不同保护装置配合关系、多场景测试的维度出发，提出了继电保护仿真模块设计和模拟方法。所提方法能够满足各类继电保护仿真测试要求，并通过了仿真测试。

关键词: 继电保护, 数字仿真, 继电保护测试

Abstract:

The massive access of new energy has brought adaptability problems to relay protection. This paper proposes a digital simulation testing method for relay protection in multiple scenarios which can provide effective technical support for the performance evaluation of relay protection. From the perspective of the time sequence cooperation logic of relay protection devices, the cooperation relationship between protection devices, and the dimension of multi-scenario testing, this paper proposes the design and simulation method of relay protection simulation modules. The proposed method can meet the simulation requirements of various relay protection, and has passed the simulation test.

Key words: relay protection, digital simulation, relay protection test

刘清泉, 杨鹏, 李铁成, 王献志, 文明浩. 应对继电保护多场景的数字仿真测试方法[J]. 中国电力, 2025, 58(2): 118-125.

Qingquan LIU, Peng YANG, Tiecheng LI, Xianzhi WANG, Minghao WEN. Digital Simulation Test Method for Multiple Scenarios Relay Protection[J]. Electric Power, 2025, 58(2): 118-125.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202405131

https://www.electricpower.com.cn/CN/Y2025/V58/I2/118

图/表 11

图 1 继电保护装置工作逻辑

Fig.1 Working logic diagram of relay protection device

图 2 一、二次模型联合仿真逻辑

Fig.2 First and second model co-simulation logic diagram

图 3 继电保护模块框架

Fig.3 Relay protection module frame diagram

图 4 CT断线逻辑

Fig.4 The diagram of CT wire break logic.

图 5 差动保护动作逻辑

Fig.5 The diagram of differential current operation logic.

图 6 一次系统仿真模型

Fig.6 First system simulation model

图 7 保护装置P1断路器失灵时各装置断路器状态

Fig.7 Circuit breaker condition of each device when the circuit breaker of device P1 fails

图 8 保护装置P1 TV断线时各装置断路器状态

Fig.8 Circuit breaker condition of each device when protection device P1 TV break

图 9 站用直流失压时各装置断路器状态

Fig.9 Circuit breaker condition of each device when station direct voltage loss

表 1 测试结果

Table 1 The results of test

方法特点	动模测试	数模混合实时仿真	所提仿真测试方法
测试模型构建形式	物理	物理+数字	数字
测试耗时	长	长	短
测试成本	高	高	低
一次模型修改	较复杂	简单	简单
二次模型修改	较复杂	较复杂	简单

表 2 3种数字仿真测试方法特点

Table 2 Characteristics of three digital simulation test methods

测试结果	文献[20]	文献[22]	所提仿真测试方法
保护动作结果能否返回至一次系统	否	能	能
能否测试不同保护原理之间的配合	否	能	能
能否测试不同保护装置之间的配合	否	能	能
能否进行系统级继电保护测试	否	否	能
能否进行各种二次系统异常时继电保护的测试	否	否	能

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