Abstract: A photovoltaic system for converting a DC voltage from a photovoltaic generator into an AC voltage, includes a transformerless power inverter which comprises high-frequency-clocked switching units, the DC voltage input of which is connected to the photovoltaic generator, and the AC voltage output of which is connected to a series circuit consisting of a bias generating device and an inductive HF decoupling device. The bias generating device is used to apply a bias potential to the AC voltage output of the power inverter, said bias potential also indirectly influencing the voltage potential at the DC voltage input of the power inverter. The inductive HF decoupling device is used for the HF decoupling of the AC voltage side from the DC voltage side of the power inverter in order to prevent capacitive discharge currents to the photovoltaic generator due to the use of the bias generating device.