A comparison of frequency measurement methods for underfrequency load shedding

被引：14
|
作者：
Salcic, Z [1 ]
Li, ZG [1 ]
Annakkage, UD [1 ]
Pahalawaththa, N [1 ]
机构：
[1] Univ Auckland, Dept Elect & Elect Engn, Auckland 1, New Zealand
来源：
ELECTRIC POWER SYSTEMS RESEARCH | 1998年 / 45卷 / 03期
关键词：
frequency measurement; underfrequency load shedding; DC offset;
D O I：
10.1016/S0378-7796(98)00024-8
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 comparison of frequency measurement methods for the purpose of underfrequency load shedding is presented in this paper. Comparison is made under the assumptions of the presence of DC offset, high order harmonics and noise in the measured signal. The major constraints have been the accuracy of frequency measurement, time needed to measure the frequency and complexity of implementation in terms of computational requirements. A method for efficient, low-cost implementation of frequency relay which can be used at domestic consumer installations is proposed and its implementation is described. (C) 1998 Elsevier Science S.A. All rights reserved.
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页码：209 / 219
页数：11
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