Utility-Interactive Photovoltaic inverter which has a voltage compensation function

摘要

The subject innovation is system (commercial power source) coupled type relates to the inverter, grid-connected auxiliary inverter to the output of the main inverter (main inverter) to the operation (sub inverter) configuration so, the output voltage of the main inverter output to the load or a commercial relates to a grid-connected inverter with a voltage compensation function to compensate for component compensation to the voltage change of the output harmonic when excess or shortage of the power supply voltage to supply a constant voltage to the load.; Solar cells and fuel cell power generation system, the nature of its dynamic characteristics are very slow to change in grid voltage at the output when changing driving conditions and load conditions that can cause problems that can not adapt to the load characteristics required as instantaneously increases.; In the present design over the grid-inverter detecting the output voltage supplied to the load, and configure a second inverter in order to compensate for the waveform of the output voltage according to the detected result, and is always a constant voltage output side when fluctuations and power failure of the grid voltage load to provide a grid-connected inverter to send me.