| 引用本文: | 呙虎,李晨坤,崔挺,等.酒泉—湖南特高压直流对湖南电网稳控策略的影响研究[J].电力系统保护与控制,2017,45(18):114-119.[点击复制] |
| GUO Hu,LI Chenkun,CUI Ting,et al.Influence of the UHVDC project from Jiuquan to Hunan on stability control strategies in Hunan power grid[J].Power System Protection and Control,2017,45(18):114-119[点击复制] |
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| 摘要: |
| 为了研究酒泉—湖南特高压直流对湖南电网稳控策略的影响，首先梳理了湖南电网现有的稳控策略，然后分析了特高压直流双极闭锁的受端稳控策略和受端换流站交流出线严重故障的稳控策略。从切负荷执行站的选择方式指出特高压直流受端稳控策略可能影响现有鄂湘联络线稳控策略。从特高压直流带来的潮流变化指出现有湘中内部断面稳控策略将失效，并提出切负荷与直流功率紧急控制协调配合的措施以应对受端电网交流线路严重故障。研究结果为酒泉—湖南特高压直流的受端稳控策略配置和湖南电网现有稳控策略调整提供了技术依据。 |
| 关键词: 特高压直流 稳控策略 协调控制 紧急控制 |
| DOI：10.7667/PSPC161530 |
| 投稿时间：2016-09-14修订日期：2016-09-30 |
| 基金项目:国网湖南省电力公司项目(5216A5150003) |
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| Influence of the UHVDC project from Jiuquan to Hunan on stability control strategies in Hunan power grid |
| GUO Hu,LI Chenkun,CUI Ting,CHEN Daojun,ZUO Jian,SONG Junying |
| (State Grid Hunan Electric Power Corporation Research Institute, Changsha 410007, China;State Grid Hunan Electric Power Company, Changsha 410007, China) |
| Abstract: |
| To research the influence of UHVDC project from Jiuquan to Hunan on the stability control strategies in Hunan power grid, the current situation of stability control strategies is firstly presented. Then, the stability control strategies of UHVDC bipolar block fault and serious fault of 500 kV AC lines from Xiangtan converter station are analyzed. The receiving-end stability control strategy of UHVDC may affect the current stability control strategy of tie-lines between Hunan and Hubei depending on the choosing of load shedding stations. Because of the load flow change coming with UHVDC, the current stability control strategy of internal section in the middle of Hunan will become invalid. The coordination measures of load shedding and DC emergency control are proposed to deal with serious fault of AC lines in receiving-end power grid. The research results offer references for the configuration of the UHVDC’s receiving-end stability control strategy and the adjustment of current strategies in Hunan power grid. This work is supported by State Grid Hunan Electric Power Company (No. 5216A5150003). |
| Key words: ultra high voltage direct current (UHVDC) stability control strategy coordination control emergency control |
