Development of Self-adaptive Electric Relay Protection for Big/Middle Model Electromotor

YUAN Xu-long    1; WANG Lin-hu    2

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Development of Self-adaptive Electric Relay Protection for Big/Middle Model Electromotor

更新时间：2025-04-26

- Development of Self-adaptive Electric Relay Protection for Big/Middle Model Electromotor
- High VoltageApparatus Issue 4, Pages: 304-306(2004)
- 作者机构：
  
  1.   邵阳学院
  2.   武汉大学电气工程学院湖南邵阳422000
  3.   湖北武汉430072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM774
- Published：2004
- 稿件说明：
移动端阅览
[1]袁旭龙,王林虎.大中型电动机自适应继电保护装置的研制[J].高压电器,2004(04):304-306.

YUAN Xu-long 1, WANG Lin-hu 2. Development of Self-adaptive Electric Relay Protection for Big/Middle Model Electromotor[J]. High voltageapparatus, 2004, (4): 304-306.
[1]袁旭龙,王林虎.大中型电动机自适应继电保护装置的研制[J].高压电器,2004(04):304-306. DOI：

YUAN Xu-long 1, WANG Lin-hu 2. Development of Self-adaptive Electric Relay Protection for Big/Middle Model Electromotor[J]. High voltageapparatus, 2004, (4): 304-306. DOI：

摘要

阐述了装置和硬件电路的构成及其特点

从硬件及算法两方面考虑了抗干扰的措施

采用多主冗余系统的CAN总线网和RS-485通信网络

以适应不同层次的应用需要。采用自适应差动、速断、过流保护原理

以满足运行方式变化剧烈的要求。采用软件测量频率简化了硬件电路

采用定点采样提高了准确度。对样机进行试验

证明性能良好。

Abstract

The configuration and its features are described in this paper.The immunity to electromagnetic interference is considered from the aspects of hardware and software.Taking CAN bus with multi-master and redundant system and RS-485protocol for communication can meet various requiremeats of applications.Taking self-adaptive principle for differential protection

instantaneous trip protection and over-current protection can adapt the device to tremendous change of operation modes of the motor.Using software to measure frequency simplifies the hardware circuit.Using stable-point sampling improves the accuracy of calculation.The prototype is tested

achieving good results.

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