摘要
提出了一种基于超级电容的新型电能质量调节器的实用方案。调节器拓扑采用双变换模式,输入侧采用12脉动多相整流,一是可以有效减小输入侧谐波电流,提高直流母线电压,二是多相整流的两套整流器中点直接将上下直流电容电压钳位在整流输出电压,省略了对直流电容的均压控制。超级电容模块接在直流母线上,在系统发生短时供电中断或电压暂降时,由超级电容向负载提供有功支持。研制了15kVA基于超级电容储能的新型综合电能质量调节器实验室样机。数字仿真及物理实验验证了所提拓扑结构和控制策略能够有效消除短时供电中断等电能质量问题的影响。
A practical scheme bases on super capacitor energy storage system for a novel type unified power quality regulator (UPQR) is presented in this paper. The topology of UPQR discussed adopts AC-DC-AC structure and 12 pulses diode rectifier as input interface. Super capacitor (SC) module connects to inverter DC bus to support DC voltage while power quality problems such as voltage sag or short-term outage take place in power source. ASC energy storage system based 15kVA UPQR prototype is developed. Digital simulation and physical experiments are carried out to verify the correctness and validity of proposed UPQR topology and control strategies.
出处
《电气技术》
2006年第1期23-26,38,共5页
Electrical Engineering
关键词
电能质量调节器
短时供电中断
电压暂降
超级电容储能
Unified power quality regulator, short term outage, voltage sag, super capacitor energy storage
