Solar single-phase sine-wave DC-to-AC inverter connected with power network

The utility model relates to the invention of a solar single-phase network combination type sine wave inverter, which can output single-phase sine wave alternating current by the conversion of the solar DC/AC electric energy and can carry out network combination generation with an electric network. The utility model has the structure that the DC voltage input by a solar battery-board photovoltaic array PV is filtered by an electrolytic capacitor EC and then is transmitted to a full-bridge inverter; the output voltage of the full-bridge inverter is transmitted to an AC network after passing through an inductor L, a transformer T and a capacitor C; a microcontroller is connected with the full-bridge inverter through a drive. Consequently, the utility model reduces the harmonic content of the output waveform and improves the work efficiency of the product inverter.