配电网10kV电力线路无功补偿方法探讨

Discussion of 10 kV Power Distribution Network Line Reactive Power Compensation Method

随着工农业生产和人民生活水平的提高,在一条10 kV电力线路下接入若干配电变压器的情况随处可见。为进一步提高电能质量和供用电社会整体效益,对10 kV电力线路进行无功补偿的确是一件举足轻重的事;10 kV电力线路无功补偿,较之变电站和低压补偿,可以用较少的投资获取最大的社会经济效益。10 kV电力线路补偿面临两个问题,一是确定合理补偿容量,二是选择补偿点的位置。根据经济效益需要和管理实践经验,提出了10 kV电力线路无功补偿方法,即按照提高功率因数来的方法来确定无功功率容量、按照无功补偿经济当量与线路间的特点来确定补偿点的位置。

With the industrial and agricultural production and people's living standards improving,several distribution transformers access to a 10 kV power line is everywhere.In order to further improve the power quality and power supply benefits,the reactive power compensation of 10 kV power line is indeed an important thing;comparing with substations and low voltage compensation,less investment maximizes social and economic benefits for 10 kV power line reactive power compensation.10 kV power line compensation faces two problems,the first is determining the reasonable compensation capacity,and the second is the compensation point's location.So this article proposes 10 kV power line reactive power compensation method based on economic need and management practices,namely improving the power factor method to determine the reactive power capacity and determining the compensation point position according to the relationship between reactive power compensation economic equivalent and lines.