| 引用本文: | 张文峰,苏 宇,王 宁,曾凯文,廖诗武,黎嘉明,龙 霏,文劲宇.大型火电FCB机组空充500 kV线路试验研究[J].电力自动化设备,2014,34(11): |
| ZHANG Wenfeng,SU Yu,WANG Ning,ZENG Kaiwen,LIAO Shiwu,LI Jiaming,LONG Fei,WEN Jinyu.Research of 500 kV unloaded line energization by large-scale thermal FCB unit[J].Electric Power Automation Equipment,2014,34(11): |
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| 摘要: |
| 广东电网以大型火电快速切回（FCB）机组为黑启动电源，于2013年7月4日成功进行了空充500 kV输电线路的试验。高压长距离线路在空充过程中容易产生自励磁、过电压等现象，导致黑启动失败，因此对机组的自励磁特性进行了理论分析，分析结果表明试验过程中机组不会出现自励磁现象。基于理论分析提出了自励磁工程判据；并对线路的过电压特性进行了仿真计算，计算结果表明，试验过程中各测量点的电压均满足国标要求。 |
| 关键词: 火电机组 黑启动 线路空充 自励磁 过电压 试验 仿真 |
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| 基金项目:广东电网有限责任公司科技项目（Ｋ－ＧＤ２０１１－５５３） |
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| Research of 500 kV unloaded line energization by large-scale thermal FCB unit |
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ZHANG Wenfeng1, SU Yu2, WANG Ning1, ZENG Kaiwen2, LIAO Shiwu2, LI Jiaming2, LONG Fei1, WEN Jinyu2
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1.Guangdong Power Grid Co. Ltd.，Guangzhou 510600，China;2.State Key Laboratory of Advanced Electromagnetic Engineering and Technology，Huazhong University of Science and Technology，Wuhan 430074，China
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| Abstract: |
| With a large-scale thermal FCB（Fast Cut Back） unit as the black-start power source，a test of 500 kV unloaded line energization is carried out successfully on July 4，2013. Since long high-voltage line may easily grow the self-excitation and overvoltage during the unloaded line energization，resulting in unsuccessful black-start，the self-excitation characteristics of that unit are analyzed and the analytical results show that the self-excitation will not occur during the test，based on which，an engineering criterion of self-excitation is proposed. The over-voltage characteristics of that line are simulated and calculated，and the calculative results show that the voltage of each measuring point will be within the national standard range during the test. |
| Key words: thermal units black start unloaded line energization self-excitation overvoltage testing computer simulation |
