Proportional integral plus multi-frequency resonant current controller for grid-connected voltage source converter under imbalanced and distorted supply voltage conditions  

作　　者：Jia-bing HU Wei ZHANG Hong-sheng WANG Yi-kang HE Lie XU 

机构地区：[1]School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China [2]Department of Electronics and Electrical Engineering, Strathclyde University, Glasgow G1 1XW,, UK

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2009年第10期1532-1540,共9页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：supported by the National Natural Science Foundation of China(No.50907057);the National High-Tech Research and Development Program (863) of China(No.2007AA05Z419)

摘　　要：This paper proposes a current control scheme for a grid-connected pulse width modulator(PWM) voltage source converter(GC-VSC) under imbalanced and distorted supply voltage conditions.The control scheme is implemented in the positive synchronously rotating reference frame and composed of a single proportional integral(PI) regulator and multi-frequency resonant controllers tuned at the frequencies of 2ω and 6ω,respectively.The experimental results,with the target of eliminating the active power oscillations and current harmonics on a prototype GC-VSC system,validate the feasibility of the proposed current control scheme during supply voltage imbalance and distortion.This paper proposes a current control scheme for a grid-connected pulse width modulator （PWM） voltage source converter （GC-VSC） under imbalanced and distorted supply voltage conditions. The control scheme is implemented in the positive synchronously rotating reference frame and composed of a single proportional integral （PI） regulator and multi-frequency resonant controllers tuned at the frequencies of 2ω and 6ω, respectively. The experimental results, with the target of eliminating the active power oscillations and current harmonics on a prototype GC-VSC system, validate the feasibility of the proposed current control scheme during supply voltage imbalance and distortion.

关 键 词：Grid-connected voltage source converter （GC-VSC） Proportional integral plus multi-frequency resonant （PI＋MFR） IMBALANCE Harmonics distortion 

分 类 号：TM46[电气工程—电器]