小水電進相運行對電網的影響
梁琛1,王歡2,梅姚3
(1 國網甘肅省電力公司電力科學研究院,甘肅 蘭州 730070;2 國網甘肅省電力公司培訓中心,甘肅 蘭州 730070;
3 國網甘肅省電力公司,甘肅 蘭州 730030)
摘 要:小水電集中上網地區電壓問題嚴重,水電機組進相運行可以為電網提供一定的無功支撐。研究了小水電進相運行對電網的降壓效果,分析了進相運行對電網網損的影響,提出通過適當安排小水電進相運行,參與地區電網無功電壓調節等方法,來提高小水電集中并網地區電壓管理水平,改善電能質量。
關鍵詞:進相;小水電;無功電壓;電網損耗
中圖分類號:TM612 文獻標識碼:A 文章編號:1007-3175(2017)06-0037-03
Influence of Small Hydropower on Power Grid
LIANG Chen1, WANG Huan2, MEI Yao3
(1 Great State Gansu Electric Power Company Electric Power Research Institute, Lanzhou 730070, China;
2 Great State Gansu Electric Power Company Training Center, Lanzhou 730070, China;
3 Great State Gansu Electric Power Company, Lanzhou 730030, China)
Abstract: The voltage problems of concentrated grid connected areas of small hydropower are serious. The leading phase operation of hydroelectric generating set could provide certain reactive power support for the power grid. This paper researched on the reduction voltage effect of the power grid from the small hydropower leading phase operation, analyzed the impacts of leading phase operation on the grid loss and proposed to properly arrange the small hydropower leading phase operation with participation in the reactive voltage regulation of regional power grid, to improve the voltage management level of concentrated grid connected areas of small hydropower, together with the power quality.
Key words: leading phase; small hydropower; reactive voltage; grid loss
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