Loss-of-mains detection for small generators

被引：33

作者：

Hopewell, PD ^{[1
]}

Jenkins, N ^{[1
]}

Cross, AD ^{[1
]}

机构：

[1] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT ELECT ENGN & ELECTR,MANCHESTER M60 1QD,LANCS,ENGLAND

来源：

IEE PROCEEDINGS-ELECTRIC POWER APPLICATIONS | 1996年 / 143卷 / 03期

关键词：

small electrical generators; loss-of-mains detection;

D O I：

10.1049/ip-epa:19960286

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new loss-of-mains detection method for use with very small generators is proposed. A known load is repeatedly switched on to the supply, and the resulting voltage changes used to estimate the source impedance, and hence to detect loss of mains. Correlating the load switching with the voltage change prevents false operation arising from random load changes. Experiments and simulations are discussed which demonstrate the principles of the technique. Test results are presented which show that the technique operates correctly, and can reliably detect a loss of mains without being susceptible to false tripping.

引用

页码：225 / 230

页数：6