| 基于双CPU的新型电动机保护装置 |
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| 引用本文： | 黄曼青,温阳东,吴丽娟.基于双CPU的新型电动机保护装置[J].合肥工业大学学报(自然科学版),2002,25(5):711-714. |
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| 作者姓名： | 黄曼青 温阳东 吴丽娟 |
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| 作者单位： | 合肥工业大学电气与自动化工程学院,安徽,合肥,230009 |
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| 摘 要： | 介绍一种功能齐备的电动机微机保护装置 ,为解决保护种类增加导致的计算量的增加和为保证采样精度而必须保证一定的采样频率之间的矛盾 ,提出双 CPU的解决方案 ;一块 CPU负责采样控制和有效值的计算 ,另一块 CPU负责保护处理和人机对话。该方案实现简单灵活 ,提高了采样精度 ,使电动机的继电保护性能得到大大增强。
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| 关 键 词： | 电动机 积分算法 反时限过流保护 串口通讯 |
| 文章编号： | 1003-5060(2002)05-0711-04 |
| 修稿时间： | 2001年11月5日 |
A new motor protection device based on double CPUs |
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| HUANG Man qing,WEN Yang dong,WU Li juan.A new motor protection device based on double CPUs[J].Journal of Hefei University of Technology(Natural Science),2002,25(5):711-714. |
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| Authors: | HUANG Man qing WEN Yang dong WU Li juan |
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| Abstract: | A powerful microcomputer based motor protection device is introduced. In order to resolve the contradiction between the increasing computation due to the increasing of protection types and keeping of sample frequency to guarantee the precision of sampling, a new scheme of using double CPUs is presented. One CPU is in charge of sampling control and computing the effective value of signals,and the other is in charge of protection processing and dialog between users and CPU. The scheme is simple and flexible,so the precision of sampling is improved and the relay property of motor is enhanced greatly. |
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| Keywords: | motor integral algorithm inverse time current protection serial communication |
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