大型发电机组整套启动过程中继电保护策略探讨

电力建设 ›› 2013, Vol. 34 ›› Issue (7): 89-94.

大型发电机组整套启动过程中继电保护策略探讨

牛利涛1 ，肖桂霞2 ，兀鹏越1 ，何信林1

1.西安热工研究院有限责任公司，西安市 710032；2.华能陕西靖边电力有限公司，陕西省榆林市 718500

出版日期:2013-07-01
作者简介:牛利涛（1980），男，硕士，工程师，从事电站启动调试技术研究工作，E-mail：niulitao1980@126.com; 肖桂霞（1967 ），女，助理工程师，从事电厂电气运行及技术管理工作; 兀鹏越（1976），男，硕士，高工，从事电站启动调试技术研究工作；何信林（1978），男，硕士，高工，从事电站启动调试技术研究工作。

Discussion on Relay Protection Strategy During Integrated Starting of Large Generating Units

NIU Litao1，XIAO Guixia2，WU Pengyue1，HE Xinlin1

1.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710032, China; 2.Huaneng Shaanxi Jingbian Electric Power Co., Ltd., Yulin 718500, Shaanxi Province, China

Online:2013-07-01

摘要/Abstract

摘要：

大型发电机组整套启动电气总试验过程中，发电机－主变压器组系统的工况与正常运行时不尽相同。基于实际工程发电机组整套启动电气试验的全过程，论述了不同试验阶段的特点。针对整套启动中遇到的问题，提出了继电保护在电气总启动中应该采取的策略，包括：励磁变压器临时试验电源的定值设置依据、同期定值的调整原理、保护的投退原则等。这些策略可供大型发电机启动调试借鉴。

关键词: 整套启动 , 同期, 定值计算 , 短路试验 , 空载试验

Abstract:

The condition of generator-transformer system in electrical tests during integrated starting is different from that in normal operation. The characteristics of different test stages were discussed based on the electrical test process in integrated starting of practical generating units. Aimed to the problems occurred in integrated starting process, some relay protection strategies were suggested for electric start-up, such as fixed value setting basis of temporary power supply of excitation transformer, adjustment principle of setting value used for generator synchronization, protection switching principle. These strategies will provide references for the integrated starting of large generating units.

Key words: integrated starting, synchronization, setted value calculation, short circuit test, no-load test

牛利涛,肖桂霞,兀鹏越，何信林. 大型发电机组整套启动过程中继电保护策略探讨[J]. 电力建设, 2013, 34(7): 89-94.

NIU Litao，XIAO Guixia，WU Pengyue，HE Xinlin. Discussion on Relay Protection Strategy During Integrated Starting of Large Generating Units[J]. ELECTRIC POWER CONSTRUCTION, 2013, 34(7): 89-94.