中国电机工程学报2012，Vol.32Issue(28)：129-132,4.
发电机低励限制与失磁保护的配合整定计算
Coordinative Setting Calculation of Minimum-excitation Limit and Loss-of-excitation Protection for Generator
郭春平 1余振 1殷修涛1
作者信息
- 1. 国网电力科学研究院,江苏省南京市210003
- 折叠
摘要
Abstract
This paper proposes a suitable for the engineering application scheme of the coordinative setting calculation to solve the problem that the current coordinative setting calculation between the minimum-excitation limitation and the loss-of-excitation protection is inaccurate. Firstly, the standard mapping equations of loss-of-excitation protection impedance circles are established in the P-Q coordinate system, and based on those equations, through the analysis, the conclusion can be drawn that regardless of the equations of loss-of-excitation protection impedance circle is static stability circle or asynchronous circle, it is not necessary to consider the coordinative setting calculation between the minimum-excitation limit and the asynchronous circle, but to consider that the minimum-excitation limit is whether or not in coordination with the static stability circle. Then according to that conclusion, successively analyzes the requirements and the steps of the coordinative setting calculation, and considers the impact of the leading-phase operation of the generator on that calculation, that is, a comprehensive scheme is presented. Finally, the validity of the proposed scheme of the coordinative setting calculation is verified by the specific test case.
关键词
发电机/励磁系统/进相运行/低励限制/失磁保护/配合整定计算Key words
generators/excitation system/leading-phase operation/minimum-excitation limit/loss-of-excitation protection/coordinative setting calculation分类
信息技术与安全科学引用本文复制引用
郭春平,余振,殷修涛..发电机低励限制与失磁保护的配合整定计算[J].中国电机工程学报,2012,32(28):129-132,4.
