摘要
本文对由两类逆变器组成的电力系统谐 波与无功功率的综合补偿系统进行了分析，并提出了一种由两个并联的电压源逆变器组成综合补偿系统，该系统中负荷产生的谐波由带 Ｌ Ｃ并联谐振回路的混合型有源电力滤波器补偿，基波无功功率由并联的低开关频率的电压源逆变器补偿。当需进行大容量的谐波与无功功率补偿时，利用该系统可有效降低装置成本和损耗。文中描述了该系统的结构，分析了其工作原理和控制策略，并通过计算机仿真对理论分析进行了验证。
Harmonic suppression and reactive power compensation of power systems carried out with two kinds of inverters are analyzed, and a new approach employs two voltagesource inverters connected in parallel is presented.The high frequency harmonic in the load is eliminated by a low power rating inverter connected with a L-C shunt resonance circuit tuned to fundamental frequency ,while the fundamental frequency reactive power is compensated by a lower switching frequency inverter. A significant reduction in the cost and the losses for highpower applications will be obtained with the approach.The basic principle of operation, circuit topology and control strategy for harmonic and reactive power compensation are discussed.Computer simulation results are presented to demonstrate the performance of the proposed system.
出处
《电力系统及其自动化学报》
CSCD
1999年第3期28-34,共7页
Proceedings of the CSU-EPSA
基金
国家电力公司青年科技促进费资助
发电设备控制和仿真国家重点实验室资助
