Title :
Design of Grid-Connected Photovoltaic Generation System with High Step-Up Converter and Sliding-Mode Inverter Control
Author :
Wai, Rong-Jong ; Wang, Wen-Hung
Author_Institution :
Dept. of Electr. Eng., Yuan Ze Univ., Chung-Li
Abstract :
In order to make the PV generation system more flexible and expandable, the later power circuit is composed of a high step-up converter and a pulse-width-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 and to allow the parallel operation of low-voltage PV modules. Moreover, an adaptive total sliding-mode control (ATSMC) system is designed for the current control of the PWM inverter to maintain the output current with a higher power factor (PF) and less variation under load changes. Experimental results are given to verify the validity and reliability of the high step-up converter and the PWM inverter control for a grid-connected PV generation system.
Keywords :
DC-DC power convertors; PWM invertors; PWM power convertors; photovoltaic power systems; power factor; power generation control; power grids; variable structure systems; ATSMC; PV generation system; PWM inverter; adaptive total sliding-mode control; dc-dc power conversion; grid-connected photovoltaic generation system; high step-up converter; power factor; pulse-width-modulation inverter; sliding-mode inverter control; Control systems; DC-DC power converters; Mesh generation; Photovoltaic systems; Power generation; Pulse generation; Pulse width modulation converters; Pulse width modulation inverters; Sliding mode control; Solar power generation;
Conference_Titel :
Control Applications, 2007. CCA 2007. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0442-1
Electronic_ISBN :
978-1-4244-0443-8
DOI :
10.1109/CCA.2007.4389395