Grid-connected working system 360v - 600vdc: the wind power generator outputs 3-phase alternating current, the PWM grid-connected controller converts the alternating current into direct current and provides stable direct current voltage for the grid-connected inverter. The power supply can be used for the additional power interfaces to household appliances and utility grid. At present, the most commonly used energy distribution mode is the wind-solar complementary mode, that is, the photovoltaic power generation and the wind power generation are simultaneously used in a complementary way, which not only saves the energy use cost, covers the demands at both day and night, but also is the best and most widely used method for families. At present, the power of commonly used wind power generation system is generally 300 W - 5,000 W, and most customers use wind-solar complementary power generation systems, so the system mainly consists of wind generators, batteries, controllers and grid-connected inverters. Definitely, if the customer has not set the photovoltaic system before, we can supply the complete set of system equipment, including the photovoltaic power generation system.