This application provides a power generation system. The power generation system may include an integration system and a power transformation system. The integration system may include a plurality of inverters and a plurality of first switches. The plurality of inverters are connected in series to the plurality of first switches in a one-to-one correspondence. Each inverter converts a direct current from a direct current power supply into an alternating current, and outputs the alternating current to a corresponding first switch. Alternating currents of the plurality of first switches from corresponding inverters are combined and output to the power generation system, and the plurality of inverters and the power transformation system are isolated from each other. The power transformation system adjusts a voltage value of the combined alternating current and outputs the voltage value to a power grid.