摘要
针对电能替代前配电网有载调压变压器应用点负荷低的问题,提出了电能替代背景下配电网有载调压变压器降损方法。依据有载调压变压器结构,分析配电网有载调压变压器调容原理,根据变压器能耗与负载之间关系,研究变压器负载与损失区域大小,选取最优运行方式,以此实现配电网有载调压变压器降损。在城市配电网电能替代场景下,通过试验分析结果可知,电能替代后配电网有载调压变压器用电负荷较高,降损效果较好。
In view of the low load of the on-load tapchanger transformer in distribution networks at the application point before the substitution of electric energy,this paper proposes a method for reducing the loss of the on-load tapchanger in distribution networks under the background of the substitution of electric energy.According to the structure of the on-load tap-changer transformer,the principle of the on-load tap-changer capacity regulation in distribution networks is analyzed.According to the relationship between the energy consumption and load of the transformer,the size of load and loss area of the transformer are studied,and the optimal operation mode is selected to reduce the loss of the on-load tapchanger transformer in distribution networks.In the main scenario of power substitution in the urban distribution network,the test results show that the load of the on-load tap-changer transformer in distribution network after power substitution is higher with better loss reduction effect.
作者
徐常
刘金森
张彦
王延杰
徐国智
XU Chang;LIU Jinsen;ZHANG Yan;WANG Yanjie;XU Guozhi(Power Grid Planning Research Center of Guizhou Power Grid Co.,Ltd.,Guiyang 550002,Guizhou,China;Guodian Huayan Electric Power Technology Co.,Ltd.,Guangzhou 510075,Guangdong,China)
出处
《电网与清洁能源》
2020年第3期13-17,26,共6页
Power System and Clean Energy
基金
广东电网重点科技研究项目(000220000004297)。
关键词
电能替代
配电网
有载调压变压器
降损
electric energy substitution
distribution network
on-load tap-changer
loss reduction
