A method for the control of a static frequency converter, in which an alternating voltage provided by a generator with a first frequency is first rectified in a switched rectifier, and in which the DC-voltage thus present in an intermediate circuit is inverted to an alternating voltage with a grid frequency by means of a switched inverter. The generator is provided with an excitation coil and with means for controlling the power made available to the grid by means of controlling the strength of the excitation field provided by the excitation coil and, if need be, also of the phase relationship between the voltage of the frequency converter and the generator voltage and the grid voltage, respectively. The generator side alternating voltage of the rectifier is controlled to a frequency which is substantially constant in accordance with the first frequency and the inverter is controlled on the basis of the measured value of the DC-voltage in the intermediate circuit.