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Design of Grid-Connected Photovoltaic Generation System with High Step-Up Converter and Sliding-Mode Inverter Control

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2 Author(s)
Rong-Jong Wai ; Dept. of Electr. Eng., Yuan Ze Univ., Chung-Li ; Wen-Hung Wang

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.

Published in:

Control Applications, 2007. CCA 2007. IEEE International Conference on

Date of Conference:

1-3 Oct. 2007