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Case analysis of a gas turbine inadvertent energization protection action |
JI Hujun1, ZHAO Junjie2, ZHANG Hao2, YANG Zhao2 |
1. Dongguan Shenzhen Energy Zhangyang Power Co., Ltd, Dongguan, Guangdong 523637; 2. Xi'an Thermal Power Research Institute Co., Ltd, Xi'an 710054 |
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Abstract The protection action of “inadvertent energization” occurred in the whole starting process of the No.6 unit of a power plant in South China. In this paper, through analyzing the data of its protection action, the process of action and the fault waveform, the fault and the cause of action are obtained. The improvement measures for the electrical control system of the unit and how to avoid the wrong operation of “inadvertent energization” are put forward, and the effectiveness of the improvement measures is verified.
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Received: 16 April 2021
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Cite this article: |
JI Hujun,ZHAO Junjie,ZHANG Hao等. Case analysis of a gas turbine inadvertent energization protection action[J]. Electrical Engineering, 2021, 22(10): 76-79.
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URL: |
http://dqjs.cesmedia.cn/EN/Y2021/V22/I10/76
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[1] PCS—985BG发电机保护装置说明书[Z].PCS—985BG发电机保护装置说明书[Z]. 南京南瑞继保电气有限公司, 2018. [2] 王树柏, 沈利平, 沈利骞. 由误上电保护动作引发的机组同期并网问题探讨[J]. 西北水电, 2018(1): 89-91. [3] 莫俊武. 燃机并网过程中“误上电”跳机分析[J]. 机电信息, 2015(33): 9, 11. [4] 康振华. 基于PCS—985B的发电机误上电保护现场校验[J]. 电工技术, 2019(11): 126-127, 130. [5] 俞纪维, 董纲, 宋晓斌, 等. 主变空载合闸励磁涌流的分析与探讨[J]. 电气技术, 2016, 17(5): 131-133. [6] 王雪, 王增平. 基于波形时域分布特征的变压器励磁涌流识别[J]. 电工技术学报, 2012, 27(1): 148-154. [7] 卢王允, 曹勇敢, 李苗苗. 基于小波分析的变压器励磁涌流识别判据研究[J]. 电气技术, 2014, 15(12): 8-12. [8] 大型发电机变压器继电保护整定计算导则:DL/T 684—2012[S]. 2012. [9] 南方电网大型发电机变压器继电保护整定计算规程:Q/CSG 1204025—2017[S]. 2017. [10] 何越, 林湘宁, 黄景光. 一种直接消除变压器合闸励磁涌流的方法[J]. 电工技术学报, 2011, 26(11): 141-149. [11] 吕国良. 1000MW发电机误上电保护动作原因分析及防范措施[J]. 机电信息, 2012(12): 22-23. [12] 郭立雄. 发电机励磁调节器并网信号分析及改进[J].电工技术, 2018(23): 123-124, 135. |
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