Maximum Power Point Tracking for Photovoltaic Systems Using Ripple Correlation Control

P. Sahu, Rajiv Dey
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引用次数: 1

Abstract

This paper presents a low-pass filter based ripple correlation control (LPF-RCC) maximum power point tracking (MPPT) in photovoltaic (PV) systems for high power applications. Ripple correlation control is a non-linear and accurate technique of MPPT, which inherently eliminates the steady state oscillations. With the proper tuning of filter coefficients and proportional integral (PI) controller parameters, RCC is able to suppress the transient oscillations effectively. Photovoltaic (PV) system equipped with the boost converter and RCC control strategy has been implemented for various solar irradiance levels at 25°C. This work proposes a low-pass filtered version of RCC with proper tuning of Proportional Controller (PI) to improve transient and tracking performance. Simulation results show that the proposed LPF -based RCC is very much effective in eliminating unwanted ripples from voltage, current and power outputs.
基于纹波相关控制的光伏系统最大功率跟踪
提出了一种基于低通滤波器的高功率光伏系统中纹波相关控制(LPF-RCC)最大功率点跟踪(MPPT)方法。纹波相关控制是一种非线性、精确的MPPT控制技术,它固有地消除了稳态振荡。通过适当调整滤波器系数和比例积分(PI)控制器参数,RCC可以有效地抑制瞬态振荡。采用升压变换器和RCC控制策略的光伏(PV)系统在25°C下实现了不同太阳辐照度水平。这项工作提出了一个低通滤波版本的RCC,适当调整比例控制器(PI),以改善瞬态和跟踪性能。仿真结果表明,基于LPF的RCC在消除电压、电流和功率输出中不需要的纹波方面非常有效。
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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