无功与谐波补偿检测的光伏并网仿真研究  

Simulation Research of Grid-connected Photovoltaic Based on Reactive Power and Harmonic Compensation Test

作　　者：杨国华[1] 姚琪[1] 

机构地区：[1]宁夏大学物理电气信息学院,宁夏银川750021

出　　处：《自动化仪表》2011年第8期4-6,10,共4页Process Automation Instrumentation

基　　金：宁夏大学自然基金资助项目(编号:ndzr09-4);宁夏大学学生创新实验资助项目(编号:10WDG28)

摘　　要：研究了光伏电源并入配电网后对电能质量的影响。从理论上分析了对光伏并网发电系统进行无功补偿和消除配电网谐波的方法,利用瞬时无功功率理论检测系统无功及谐波电流,将无功和谐波补偿策略与光伏发电控制相结合。仿真结果表明,光伏电源并网能够较好地补偿系统无功和负载谐波,对提高负荷特性和电网的电能质量、减小电网电流谐波有显著的效果。The influence on power quality when photovoltaic power to be connected into power distribution network is researched.The reactive power compensation and elimination of harmonic for power distribution network for grid connected photovoltaic power generation system are analyzed theoretically.By adopting instantaneous reactive power theory,the reactive and harmonic currents of the system are detected;the reactive and harmonic compensation strategy is combined with the photovoltaic power generation control.The result of simulation indicates that connecting the photovoltaic power into power grid can well compensate load harmonics and reactive power,it is good for enhancing load characteristics and reducing grid current harmonics,thus improve the quality of power energy.

关 键 词：光伏电源 配电网 无功补偿 谐波检测 仿真 

分 类 号：TM761[电气工程—电力系统及自动化]