摘要
本文介绍了一种基于重复控制算法的光伏并网逆变器系统。该控制算法对死区影响及其它周期性扰动有明显的抑制作用,而且能消除跟踪误差,使系统输出达到无静差。同时,在控制中还将前馈控制与重复控制相结合,克服了重复控制固有的滞后调节特性,改善了光伏并网逆变器的输出并网电流波形和稳态误差。
This paper presents a PV grid-connected inverter system based on repetitive control. This control algorithm can obviously suppress theinfluence of deadtime and the other periodic disturbances, eliminate the tracking error, and achieve no error output. Simultaneously, thecombination of repetitive control and feedforward control overcomes the inherent regulating characteristic of delay and improves thewaveform of current and steady-state error of PV grid-connected inverter.
出处
《电子设计应用》
2005年第2期103-104,106,共3页
Electronic Design & Application World
