The advantages of solar power generation are that solar energy resources are inexhaustible, there are zero emissions, and the method is suitable for all scales. Solar inverters are power electronic devices that connect solar photovoltaic panels and power grids. They first convert AC power into DC power to achieve the maximum power tracking control function of solar energy, and then convert DC power into AC power. According to the number of AC output phases, they can be divided into single-phase inverters and three-phase inverters. Based on their electrical isolation, they can be divided into isolated type and non-isolated type inverters. Based on the characteristics of the different inverters, 220V projects use single-phase string inverters, 8KW-30KW use three-phase string inverters, and projects above 50KW can use string inverters or centralized inverters according to actual conditions.

Traditional photovoltaic inverters must be matched with isolation transformers, and isolation transformers usually reduce efficiency by 2%. New photovoltaic inverters use non-isolated inductors, and have high power generation, high efficiency, small size, and are light-weight. 

APS's silicon carbide MOSFETs and diodes will become an important force in promoting the small inductance quantization, high frequency, and low loss characteristics of inductor components.