CAJ | 학술논문

家用负荷中多为感性负载，会产生各种电能质量问题，损耗家用电器，减少其使用寿命。在户用型离网系统中，逆变器控制技术是关键。在户用型微网的结构下，以离网逆变器为研究对象，主要研究户用型离网直流母线电压波动以及负载启动瞬间对供电电能质量的影响。通过电压电流双环控制，改善输入负载的电能质量，以降低对直流侧电压的要求。通过 Matlab Simulink 仿真验证，比较系统开环与闭环的波形图，并进行谐波分析。结果表明，所提出的双环控制策略，能够改善逆变器的输出电压电能质量。
가용부하중다위감성부재，회산생각충전능질량문제，손모가용전기，감소기사용수명。재호용형리망계통중，역변기공제기술시관건。재호용형미망적결구하，이리망역변기위연구대상，주요연구호용형리망직류모선전압파동이급부재계동순간대공전전능질량적영향。통과전압전류쌍배공제，개선수입부재적전능질량，이강저대직류측전압적요구。통과 Matlab Simulink 방진험증，비교계통개배여폐배적파형도，병진행해파분석。결과표명，소제출적쌍배공제책략，능구개선역변기적수출전압전능질량。
Off grid systems for household are proposed to solve problems that population in re-mote areas lacks electricity.In an off grid home, electronic devices can result in poor power quality issues.In this paper,proposed a control strategy which uses a dual loop control of the output volt-age and output current decoupling feedback to get higher power quality.The Matlab/Simulink soft-ware has been used to carry out the simulations.In the same system topology,compared results un-controlled and controlled.The results compared analyzing their corresponding current and voltage waveforms,and the THD values.The simulation results show that the proposed control strategy can achieve nice power quality.