High-performance stand-alone photovoltaic generation system

被引：365

作者：

Wai, Rong-Jong ^{[1
]}

Wang, Wen-Hung ^{[1
]}

Lin, Chung-You ^{[1
]}

机构：

[1] Yuan Ze Univ, Dept Elect Engn, Chungli 320, Taiwan

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2008年 / 55卷 / 01期

关键词：

active sun tracking scheme; adaptive total sliding-mode control (ATSMC); high step-up converter; photovoltaic (PV) generation system; pulsewidth-modulation (PWM) inverter;

D O I：

10.1109/TIE.2007.896049

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This study develops a high-performance stand-alone photovoltaic (PV) generation system. To make the PV generation system more flexible and expandable, the backstage power circuit is composed of a high step-up converter and a pulsewidth-modulation (PWM) inverter. In the dc-dc power conversion, the high step-up converter is introduced to improve the conversion efficiency in conventional boost converters to allow the parallel operation of low-voltage PV arrays, and to decouple and simplify the control design of the PWM inverter. Moreover, an adaptive total sliding-mode control system is designed for the voltage control of the PWM inverter to maintain a sinusoidal output voltage with lower total harmonic distortion and less variation under various output loads. In addition, an active sun tracking scheme without any light sensors is investigated to make the PV modules face the sun directly for capturing the maximum irradiation and promoting system efficiency. Experimental results are given to verify the validity and reliability of the high step-up converter, the PWM inverter control, and the active sun tracker for the high-performance stand-alone PV generation system.

引用

页码：240 / 250

页数：11

共 30 条

[11] Photovoltaic converter system suitable for use in small scale stand-alone or grid connected applications [J].