PHOTOVOLTAIC GENERATION BY PARALLEL DRIVING OF MODIFIED BUCK-BOOST CONVERTER

摘要

The present invention improves the configuration of the photovoltaic converter output terminal to reduce the operating voltage and capacitance capacity of the output capacitor, and to increase the equivalent switching frequency without increasing the additional switching loss to reduce the output voltage ripple A converter of a system and a control device thereof.;The present invention proposes and analyzes a solar converter, a new parallel drive circuit for increasing the output and reducing the ripple of the output voltage, and the input / output relationship of the improved converter is the same as the boost converter, which is a conventional boost converter. By changing the configuration of the output terminal, it is possible to reduce the operating voltage and capacitance of the output capacitor, solve the inequality problem of current distribution of the conventional parallel drive method, and increase the equivalent switching frequency without increasing the additional switching loss. Effective for reducing output voltage ripple.;Converters, solar cells,