电气技术2026,Vol.27Issue(1):42-48,7.
储能系统并网点过电压及绝缘特性分析
Overvoltage of the energy storage system connection point and insulation characteristic analysis
ZHENG Yi 1WU Jiping 1ZHANG Keqian 1HUANG Xiaocheng 1GE Binxin1
作者信息
- 1. NR Electric Power Electronics Co.,Ltd,Changzhou,Jiangsu 213025
- 折叠
摘要
Abstract
Many factors will affect the regulation of energy storage system(ESS),such as system constraints,installation site,capacity,especially the self-reliability of the ESS.To ensure the reliable operation of the ESS and provide effective power support during voltage regulation,the voltage fluctuation of the connection point is analyzed and calculated based on the IEEE 14 node system for the insulation damage of the ESS step-up transformer.According to the overvoltage calculation results of the connection point caused by variation of photovoltaic(PV)output,charge-discharge of ESS,faults and switching impulse,the design method for the ESS transformer is studied.The transformer should be selected according to the actual voltage of the connection point to adapt all the conditions.关键词
储能系统(ESS)/并网点/连接变压器/过电压/绝缘特性Key words
energy storage system(ESS)/connection point/step-up transformer/overvoltage/insulation characteristics引用本文复制引用
ZHENG Yi,WU Jiping,ZHANG Keqian,HUANG Xiaocheng,GE Binxin..储能系统并网点过电压及绝缘特性分析[J].电气技术,2026,27(1):42-48,7.