A power generation system, in the form of a wind turbine system, the power generation system comprising a power supply unit, in form of a generator, a power converter (103, 104, 105) adapted to convert an input power signal from the power supply unit into an output power signal, a controller (108, 110, 111) adapted to control the power converter (103, 104, 105), wherein the electrical output power of the power converter (103, 104, 105) is provided to a grid, and a wind park controller, wherein the power converter (103, 104, 105) comprises a grid-side converter part and a turbine-side converter part, the controller (108, 110, 111) adapted to control the power converter (103, 104, 105) comprising an input terminal adapted to receive a voltage reference (Grid Vac*) signal being associated with a predefined grid voltage (Grid Vac*) and a frequency reference signal (Grid freq*) being associated with a predefined grid frequency (Grid freq*), and a network bridge controller being adapted to control the power conversion of the grid-side converter part, wherein the network bridge controller comprises a modulator adapted to modulate gate drive command signals in the grid-side converter part based on a reference voltage (Vref) and a reference angle (θo) being derived from the voltage reference signal (Grid Vac*) and the frequency reference signal (Grid freq*), wherein the modulator is adapted to modulate the gate drive command signals in order to maintain the predefined grid voltage (Grid Vac*) and the predefined grid frequency (Grid freq*) in the power converter (103, 104, 105) in the case of a failure within the grid, wherein the voltage reference signal (Grid Vac*) and the frequency reference signal (Grid Vac*) are received from the wind park controller. a power supply unit, in form of a generator, a power converter (103, 104, 105) adapted to convert an input power signal from the power supply unit into an output power signal, a controller (108, 110, 111) adapted to control the power converter (103, 104, 105), wherein the electrical output power of the power converter (103, 104, 105) is provided to a grid, and a wind park controller, wherein the power converter (103, 104, 105) comprises a grid-side converter part and a turbine-side converter part, the controller (108, 110, 111) adapted to control the power converter (103, 104, 105) comprising an input terminal adapted to receive a voltage reference (Grid Vac*) signal being associated with a predefined grid voltage (Grid Vac*) and a frequency reference signal (Grid freq*) being associated with a predefined grid frequency (Grid freq*), and a network bridge controller being adapted to control the power conversion of the grid-side converter part, wherein the network bridge controller comprises a modulator adapted to modulate gate drive command signals in the grid-side converter part based on a reference voltage (Vref) and a reference angle (θo) being derived from the voltage reference signal (Grid Vac*) and the frequency reference signal (Grid freq*), wherein the modulator is adapted to modulate the gate drive command signals in order to maintain the predefined grid voltage (Grid Vac*) and the predefined grid frequency (Grid freq*) in the power converter (103, 104, 105) in the case of a failure within the grid, wherein the voltage reference signal (Grid Vac*) and the frequency reference signal (Grid Vac*) are received from the wind park controller. an input terminal adapted to receive a voltage reference (Grid Vac*) signal being associated with a predefined grid voltage (Grid Vac*) and a frequency reference signal (Grid freq*) being associated with a predefined grid frequency (Grid freq*), and a network bridge controller being adapted to control the power conversion of the grid-side converter part, wherein the network bridge controller comprises a modulator adapted to modulate gate drive command signals in the grid-side converter part based on a reference voltage (Vref) and a reference angle (θo) being derived from the voltage reference signal (Grid Vac*) and the frequency reference signal (Grid freq*), wherein the modulator is adapted to modulate the gate drive command signals in order to maintain the predefined grid voltage (Grid Vac*) and the predefined grid frequency (Grid freq*) in the power converter (103, 104, 105) in the case of a failure within the grid, wherein the voltage reference signal (Grid Vac*) and the frequency reference signal (Grid Vac*) are received from the wind park controller.