長電纜進線110 kV變電站無功容量配置研究
徐志偉
(揚州浩辰電力設(shè)計有限公司,江蘇 揚州 225000)
摘 要:針對城市 110 kV 變電站進出線線路電纜較多,導致負荷低谷期間無功倒送、網(wǎng)損增大、電壓越限等問題,提出了一種適應線路電纜化的 110 kV 變電站無功裝置配置方法。建立高峰/低谷負荷功率因數(shù)模型,根據(jù)無功補償容量模型分析不同負荷條件下的無功補償容量值,通過建立無功補償功率因數(shù)模型驗證無功補償容量值的合理性并進一步迭代計算,得到了精度較高的無功配置容量方案。
關(guān)鍵詞:無功補償;電纜;變電站;功率因數(shù)
中圖分類號:TM63 文獻標識碼:A 文章編號:1007-3175(2022)01-0024-04
Research on Reactive Capacity Configuration of 110 kV
Substation with Long Cable Line
XU Zhi-wei
(Yangzhou Haochen Electric Power Design Co., Ltd, Yangzhou 225000, China)
Abstract: Many problems exist, such as reactive power reverse transmission, the increase of network loss, and voltage overrun because there are many inlet and outlet wires of the line cable in urban 110 kV substation. This paper proposed a configuration method of reactive compensation equipment of the 110 kV substation that can adapt circuit cabling.This research established a factor model of peak/valley load power. It analyzed the reactive power compensation capacity value under different load conditions by using the reactive power compensation capacity model. The factor model has been used to verify the rationality of reactive power compensation capacity value and calculate it. To conclude, this paper provides a higher accuracy reactive power configuration capacity scheme.
Key words: reactive power compensation; cable; substation; power factor
參考文獻
[1] 陳宗正, 張旭航, 曹煒. 基于 110 kV 長距離電纜線路的過電壓研究[J] . 水電能源科學,2019,37(12) :136-139.
[2] 黃晶晶,王坤,王蕾,張西竹. 高電纜化率城市配電網(wǎng)電壓問題分析與治理方法[J] . 電力電容器與無功補償,2019,40(6) :93-98.
[3] 王敏,張旭航,曹煒. 電纜線路的 110 kV 變電站無功補償研究[J] . 水電能源科學,2019,37(4) :176-179.
[4] 胡鑫,張勇軍,鐘紅梅. 基于電纜網(wǎng)無功潮流特性的高壓配電網(wǎng)無功補償方法[J] . 電力電容器與無功補償,2017,38(3) :134-140.
[5] 戈東方.電力工程設(shè)計手冊[M].北京:中國電力出版社,2008.
[6] 黃偉,黃春艷,何奉祿,葉琳浩.110 kV 變電站多維度變參數(shù)無功配置方法[J] . 電力電容器與無功補償,2017,38(2) :34-39.
[7] 汪龍龍, 張兆君, 張鵬, 余成元. 變電站內(nèi)無功設(shè)備容量配置方法研究[J] . 智慧電力,2018,46(1) :51-56.