變電站并聯電容器電抗率混裝方案及其校驗
陳玉和1,王宏斌2
1 南京師范大學,江蘇 南京 210024; 2 江蘇省電力設計院,江蘇 南京 211102
摘 要:變電站并聯電容器電抗率的選擇主要基于限制涌流、抑制諧波的考慮。提出了電抗率混裝配置方案的簡化計算及校驗方法,并從兼顧諧波抑制及經濟性方面就某具體工程進行了方案比選。結果認為變電站低壓側并聯電容器電抗率宜采用4.5%(5%)與12%混裝方案,500kV變電站可每臺主變低壓側配置一臺12%電抗率并聯電容器。
關鍵詞:并聯電容器;電抗率;諧波
中圖分類號:TM531.4 文獻標識碼:B 文章編號:1007-3175(2013)02-0040-04
Conventional Scheme and Its Calibration of Substation Parallel Capacitor Reactance Rate
CHEN Yu-he1, WANG Hong-bin2
1 Nanjing Normal University, Nanjing 210024, China; 2 Jiangsu Electric Power Design Institute, Nanjing 211102, China
Abstract:Selection of substation parallel capacitor reactance rate is basically in consideration of restricting surge current and restraining harmonics. This paper raised a simplified calculation and calibration method of reactance rate conventional disposition. Scheme comparison selection was carried out in concurrent of harmonic restriction and economic aspect from a certain project. The result shows that at substation low-voltage side the conventional scheme which adopted the parallel capacitor reactance rate of 4.5% to 5% combined with that of 12% is suitable. For 500kV substations, a 12% reactance rate parallel capacitor is disposed at each main transformer low-voltage side.
Key words: parallel capacitor; reactance rate; harmonic
參考文獻
[1] GB 50227—2008 并聯電容器裝置設計規范[S].
[2] 王星華,余欣梅.電容器組串聯電抗率優化選擇模型和算法研究[J].電力系統保護與控制,2008,36(16):42-47.
[3] 夏長生.電網并聯電容器裝置電抗率的優化設計[D].沈陽:沈陽工業大學,2008.