High-Efficiency Inverter Circuit Applied to Solar Power Generation

Abstract

As a clean and renewable energy, solar energy's photovoltaic power generation market has developed rapidly under the impetus of “carbon peak, carbon neutrality” and has become the main force. This article first introduces the basic principle and process of solar power generation and analyses the principle of inverter circuit. Then five ways to improve the efficiency of the inverter circuit are summarized including: designed a high-efficiency rooftop photovoltaic power generation system; designed SiC devices to replace traditional Si devices to improve performance; proposed a new PWM strategy and improve transmission efficiency by reducing the loss of low-frequency switching bridge arms; generated SPWM modulation control signals. These methods can effectively improve the efficiency of the inverter circuit. But for solar photovoltaic power generation, there are still many practical problems to be solved. For example: the cost of photovoltaic power generation materials, natural weather conditions and other reasons have reduced power generation efficiency.