电测与仪表2017，Vol.54Issue(10)：7-13,20,8.
单相光伏逆变器直流母线电压二次波动对系统影响的分析与抑制
Analysis and suppression on effect of secondary voltage disturbances of DC bus for single-phase PV inverter
摘要
Abstract
In single-phase photovoltaic grid-connected inverter based on the conventional double closed-loop control strategy,the secondary voltage disturbances of DC bus will be generated,resulting in the triple harmonic of grid current,and affecting the quality of output energy.In view of these problems,based on analyzing the causes principle of the secondary voltage disturbances of DC bus,a double closed-loop control strategy increasing cycle integrator before DC bus voltage sampling is proposed in this paper.The strategy can remove the triple harmonic of grid current cased by the secondary voltage disturbances of DC bus,and then effectively suppress the effect on the quality of output energy.Simulation and experimental results are given to verify the rationality and effectiveness of the strategy.关键词
直流母线电压二次波动/单相光伏逆变器/双闭环控制策略/周期积分器/谐波分析Key words
secondary voltage disturbances of DC bus/single-phase photovoltaic inverter/double closed-loop control strategy/cycle integrator/harmonic analysis分类
信息技术与安全科学引用本文复制引用
陈瑞成,苗加振,胡骢,耿乙文..单相光伏逆变器直流母线电压二次波动对系统影响的分析与抑制[J].电测与仪表,2017,54(10):7-13,20,8.基金项目
中国矿业大学大学生创新创业基金资助项目(201559 （）
DC201618) （）
