CAJ | 학술논문

针对光伏并网逆变器系统的非线性特性，在固定参数 PR 控制方法的基础上，提出了一种模糊准 PR 控制方法。首先介绍单相光伏并网逆变器的结构，并分析准 PR 控制的实现算法、离散化和谐波滤除，然后把模糊控制和准 PR 控制结合应用于并网逆变器同步控制。最后利用 Matlab / simulink 平台进行仿真实验，结果表明：与准 PR 方法相比，所提出的控制方法可使电网电流同步误差更小，适应性和抗干扰性更强，因而具有较好的应用价值。
침대광복병망역변기계통적비선성특성，재고정삼수 PR 공제방법적기출상，제출료일충모호준 PR 공제방법。수선개소단상광복병망역변기적결구，병분석준 PR 공제적실현산법、리산화화해파려제，연후파모호공제화준 PR 공제결합응용우병망역변기동보공제。최후이용 Matlab / simulink 평태진행방진실험，결과표명：여준 PR 방법상비，소제출적공제방법가사전망전류동보오차경소，괄응성화항간우성경강，인이구유교호적응용개치。
A fuzzy quasi PR method is proposed for the nonlinear characteristics of photovoltaic grid connected inverter system based on the research on the PR control method with fixed parameters. Firstly,the structure of single - phase photovoltaic grid connected inverter will be introduced. Besides,the working principle of quasi PR control algorithm, the discretization method and the harmonic filtering out will be analyzed in detail. Then,the fuzzy control and quasi PR control will be combined to be applied in grid connected inverter synchronization. At last,by using the Matlab /simulink platform simulation and experimental verification,the simulation experiment results show that the proposed fuzzy quasi PR method can effectively improve the tracking effect compared with the traditional quasi PR method. So this method has a great application value.