长电缆进线110 kV变电站无功容量配置研究
徐志伟
(扬州浩辰电力设计有限公司,江苏 扬州 225000)
摘 要:针对城市 110 kV 变电站进出线线路电缆较多,导致负荷低谷期间无功倒送、网损增大、电压越限等问题,提出了一种适应线路电缆化的 110 kV 变电站无功装置配置方法。建立高峰/低谷负荷功率因数模型,根据无功补偿容量模型分析不同负荷条件下的无功补偿容量值,通过建立无功补偿功率因数模型验证无功补偿容量值的合理性并进一步迭代计算,得到了精度较高的无功配置容量方案。
关键词:无功补偿;电缆;变电站;功率因数
中图分类号:TM63 文献标识码:A 文章编号: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
参考文献
[1] 陈宗正, 张旭航, 曹炜. 基于 110 kV 长距离电缆线路的过电压研究[J] . 水电能源科学,2019,37(12) :136-139.
[2] 黄晶晶,王坤,王蕾,张西竹. 高电缆化率城市配电网电压问题分析与治理方法[J] . 电力电容器与无功补偿,2019,40(6) :93-98.
[3] 王敏,张旭航,曹炜. 电缆线路的 110 kV 变电站无功补偿研究[J] . 水电能源科学,2019,37(4) :176-179.
[4] 胡鑫,张勇军,钟红梅. 基于电缆网无功潮流特性的高压配电网无功补偿方法[J] . 电力电容器与无功补偿,2017,38(3) :134-140.
[5] 戈东方.电力工程设计手册[M].北京:中国电力出版社,2008.
[6] 黄伟,黄春艳,何奉禄,叶琳浩.110 kV 变电站多维度变参数无功配置方法[J] . 电力电容器与无功补偿,2017,38(2) :34-39.
[7] 汪龙龙, 张兆君, 张鹏, 余成元. 变电站内无功设备容量配置方法研究[J] . 智慧电力,2018,46(1) :51-56.