Modeling and control of a three-phase isolated grid-connected converter fed by a photovoltaic array

M. G. Villalva, J. R. Gazoli, E. R. Filho
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引用次数: 9

Abstract

This paper shows the modeling and control design of an isolated two-stage three-phase grid-connected converter for photovoltaic (PV) applications. The converter stages are modeled in order to obtain small-signal transfer functions that are used to design PI compensators. Three controllers are used in the system: one for the output voltage of the PV array, one for the DC link capacitor and another for the sinusoidal three-phase output currents. Simulation results are presented and they show that the compensators are correctly designed and may be employed in practical systems.
光伏阵列供电三相隔离并网变流器的建模与控制
本文介绍了一种用于光伏(PV)应用的隔离两级三相并网变换器的建模和控制设计。为了获得用于设计PI补偿器的小信号传递函数,对变换器级进行了建模。系统中使用了三个控制器:一个用于PV阵列的输出电压,一个用于直流链路电容,另一个用于正弦三相输出电流。仿真结果表明,该补偿器设计合理,可用于实际系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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