电力系统保护与控制2017，Vol.45Issue(4)：80-85,6.DOI:10.7667/PSPC160321
电力电子变压器在有源配电网无功优化中的应用
Power electronic transformer applied to optimization of reactive power in active distribution system
摘要
Abstract
To reduce nodal voltage deviation in distribution system is basic requirement for an active distribution system (ADS) operation.In order to control nodal voltage,power electronic transformer (PET) is proposed.With the help of PWM (pulse width moderation) control at the primary side and the secondary side respectively,power flow at the both side of PET is regulated.Therefore,the optimal passive flow model of an active distribution system is built,which is composed of distributed generators,storage devices and power electronic transformers.Then particle swarm optimization (PSO) is adopted to solve the problem.Simulation results reveal that power loss in the active distribution network is less than that in the same network with on-load tap changer (OLTC) transformer.Meanwhile,the relative error of nodal voltage is less than the latter,which demonstrate that power electronic transformer applied to the active distribution system could improve the operation level with its flexible regulation ability of passive power.关键词
电力电子变压器/有源配电网/无功优化/粒子群算法/节点电压Key words
power electronic transformer (PET)/active distribution system/optimization of reactive power/particle swarm optimization (PSO)/nodal voltage引用本文复制引用
张祥龙,周晖,肖智宏,张伟,伍迪..电力电子变压器在有源配电网无功优化中的应用[J].电力系统保护与控制,2017,45(4):80-85,6.基金项目
国家电网公司重大科技项目“柔性变电站成套设计技术研究及设备研制” （）
