Inverter, also known as power regulator, power regulator, is an essential part of the photovoltaic system. The main function of photovoltaic inverter is to convert the direct current electricity generated by solar panels into the alternating current used by home appliances. All the electricity generated by solar panels can be exported through the processing of the inverter. Through the full bridge circuit, SPWM processor is generally used after modulation, filtering, voltage boost, etc., to get the sinusoidal ac power matching with the lighting load frequency, rated voltage, etc., for the use of the system end users. With an inverter, dc batteries can be used to provide alternating current for electrical appliances.
Solar ac power generation system is composed of solar panels, charging controller, inverter and battery. Solar dc power system does not include inverter. The process of converting AC electric energy into DC electric energy is called rectification, the circuit that completes the rectification function is called rectification circuit, and the device that realizes the rectification process is called rectification equipment or rectifier. Correspondingly, the process of converting DC electric energy into AC electric energy is called inverter, the circuit that completes the inverter function is called inverter circuit, and the device that realizes the inverter process is called inverter equipment or inverter.
The core of the inverter is the inverter switch circuit, referred to as the inverter circuit. The circuit through the power electronic switch on and off, to complete the inverter function. The on-off of power electronic switching devices requires certain driving pulses, which may be adjusted by changing a voltage signal. The circuits that generate and regulate pulses are usually called control circuits or control loops. The basic structure of the inverter device, in addition to the above inverter circuit and control circuit, there are protection circuit, output circuit, input circuit, output circuit and so on.
Post time: Jan-27-2022