CAJ | 학술논문

将直接功率控制（DPC）应用于三相光伏并网系统中，分析了光伏特性，建立了电压型PWM整流器的数学建模，研究了DPC系统的原理，通过分析传统开关表的不足，提出了一种新型的开关表。利用Matlab/Simulink仿真，比较了基于传统开关表的DPC与基于新型开关表的DPC在三相光伏并网中的性能。结果表明：基于新型开关表的DPC可以较好的改善三相光伏并网系统的性能，对光伏并网系统具有一定的意义。
장직접공솔공제（DPC）응용우삼상광복병망계통중，분석료광복특성，건립료전압형PWM정류기적수학건모，연구료DPC계통적원리，통과분석전통개관표적불족，제출료일충신형적개관표。이용Matlab/Simulink방진，비교료기우전통개관표적DPC여기우신형개관표적DPC재삼상광복병망중적성능。결과표명：기우신형개관표적DPC가이교호적개선삼상광복병망계통적성능，대광복병망계통구유일정적의의。
In this paper, the direct power control (DPC ) is applied to a three-phase grid-connected photovoltaic system to analyze the PV characteristics, establish voltage PWM Rectifier mathematical mode, and study the principle of the DPC system. By the analysis of the deficiencies of the traditional switching table, the paper also proposes a new switching table. Using Matlab / Simulink simulation to compare the performance of the three-phase photovoltaic grid-based the traditional switching table DPC with new switching table DPC, the results show thatthe performance of the three-phase photovoltaic grid system can be improved based on new switching table DPC, it has a certain significance for photovoltaic system.