摘要
统一电能质量调节器(unified power quality conditioner,UPQC)是一种用于提高电网电能质量的装置。UPQC能够对其所接入电网的电压和电流扰动进行分别或同时补偿,以提高输配电网的稳定性并降低扰动对负载的冲击。本文提出一种基于背靠背H桥新型结构的无串联变压器UPQC装置,通过灵活的增加背靠背H桥模块可扩展其运行电压等级,以适用于不同电压等级和容量的输配电网的需求。PSCAD/EMTDC的仿真分析,验证了针对这种新型UPQC所提出的并、串联侧控制算法的正确性。
Unified Power Quality Conditioner(UPQC) is a kind of power quality improvement equipment.It can suppress the voltage and current disturbance at the same time or separately to keep the grid's stability. This paper proposes a novel configuration of UPQC based on back to back H bridge module without series injection transformers. It can be connected to the series voltage level of distribution system by increasing the number of H-bridge modules flexibly. The operation of this proposed system was analyzed through PSCAD/EMTDC.Its result verified the controller designed for this UPQC.
出处
《电气技术》
2014年第6期26-30,共5页
Electrical Engineering
