Research On A High Gain Switching Power Supply For Photovoltaic Power Generation

In recent years,with the aggravation of environmental problems,the development of new energy and use more and more by the majority of scholars,in the new energy,photovoltaic power generation technology relies on its own advantages,including renewable,no pollution,convenient construction has been large-scale development.In photovoltaic power generation technology,there is an urgent need for high gain converters.In order to volume weight ripple current and voltage gain converter to improve traditional Zeta converter and decreasing the inductance branch of the application of integrated magnetic switch inductance to the traditional Zeta transform,the switch inductance high voltage gain Zeta converter.In this paper,the switching inductance is used to replace the inductance in the conventional converter,and the voltage gain of the conventional converter is D/(1-D),and the voltage gain is expanded to 1+D times after the replacement.The coupling coefficient between the coupled inductors is designed to reduce the current ripple of the inductance branch of the converter.The article also through the PISM simulation system of static converter is simulated,the simulation results can be obtained through the converter switch inductance high voltage gain Zeta converter is proposed in this paper with the traditional electrical performance with higher than.Finally,the control design of the converter is made by selecting the UC3845 control chip.