欠励限制与失磁保护的配合计算

华电技术 ›› 2016, Vol. 38 ›› Issue (6): 51-52.

欠励限制与失磁保护的配合计算

广东珠海金湾发电有限公司，广东珠海〓519050

出版日期:2016-06-25 发布日期:2016-09-21

Coordination calculation of under excitation limitation and field failure protection

Guangdong Zhuhai Jinwan Power Generation Company Limited, Zhuhai 519050, China

Online:2016-06-25 Published:2016-09-21

摘要/Abstract

摘要：

摘要：发电厂应对欠励限制保护与失磁保护的定值进行核算，确认两者是否配合。因失励限制保护与失磁保护原理不同，需将两者归化至同一平面才能进行比较。介绍了失磁保护阻抗圆转换为功率圆的方法，通过实例计算和实验验证了该方法的正确性。

关键词:

关键词：欠励限制, 失磁保护, 配合计算, 阻抗圆, 功率圆

Abstract:

Abstract:In order to confirm whether the underexcitation limitation protection value coordinates with the field failure protection value, both of the values should be checked for power plant. Due to the principle of underexcitation limitation protection is different from that of field failure protection, the values must be normalized to the same plane to be compared. This paper introduced the method of converting impedance circle of field failure protection to power circle, which is verified to be correct by practical calculation and test.

Key words:

Keywords:under excitation limitation, field failure protection, coordination calculation, impedance circle, power circle

梁国柱. 欠励限制与失磁保护的配合计算[J]. 华电技术, 2016, 38(6): 51-52.

LIANG Guozhu.

Coordination calculation of under excitation limitation and field failure protection

[J]. Huadian Technology, 2016, 38(6): 51-52.

[1]	张波. 导纳型失磁保护与励磁装置低励限制的整定配合[J]. 华电技术, 2019, 41(9): 63-66.
[2]	刘芳，王东亚. 发电机保护G60逻辑设计问题分析和改进[J]. 华电技术, 2018, 40(5): 8-12.
[3]	陈豪杰. 一起线路跳闸引起发电机失磁保护动作的分析[J]. 华电技术, 2017, 39(1): 61-62.