特高壓直流故障對風電場送出可靠性的影響及改進措施
王衡1,姚秀萍1,常喜強1,周專2
(1 國網新疆電力調度控制中心,新疆 烏魯木齊 830000;
2 國網新疆電力公司經濟技術研究院,新疆 烏魯木齊 830013)
摘 要: 介紹了風電特性和特高壓直流故障對電網的影響,分析了特高壓直流故障對風電送出可靠性的影響。通過對系統(tǒng)進行模擬仿真,發(fā)現(xiàn)通過優(yōu)化直流無功控制系統(tǒng)與穩(wěn)控系統(tǒng)間的動作配合等措施,對減小直流系統(tǒng)故障對系統(tǒng)電壓波動及風機脫網的影響有明顯的作用。
關鍵詞: 特高壓直流;風電場;電壓;脫網;可靠性
中圖分類號:TM614 文獻標識碼:A 文章編號:1007-3175(2014)05-0029-05
Impacts of Ultra High Voltage Direct Current Fault on Output Reliability of Wind Farm and Improvement Measures
WANG Heng1, YAO Xiu-ping1, CHANG Xi-qiang1, ZHOU Zhuan2
(1 Xinjiang Communication Center for Power Dispatching, Urumqi 83 0000, China;
2 State Grid Electric Power Company Xinjiang Institute of Economic Research Technology, Urumqi 830013, China)
Abstract: Introduction was made to the wind power characteristics and the impacts of ultra high voltage (UHV) direct current (DC) fault on the grid and analysis was made to the impact of UHV DC fault on the output reliability of wind farm. The system simulation shows that via optimizing action and collocation between the DC reactive control system and the stability control system etc measures, there are obvious effects on reducing the impact of DC fault on the system voltage fluctuation and the takeoff grid of winddriven generator.
Key words: ultra high voltage direct current; wind farm; voltage; takeoff grid; reliability
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