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A wind farm is described in which two or more windmills are provided with each having a generator to generate electrical power. The energy supplied by the generators is output to a general a.c. grid which is set at a standard voltage. The electrical power supplied by the windmills is injected into t

A wind farm is described in which two or more windmills are provided with each having a generator to generate electrical power. The energy supplied by the generators is output to a general a.c. grid which is set at a standard voltage. The electrical power supplied by the windmills is injected into the a.c. grid via a d.c. interconnecting grid to which a plurality of windmills are linked and with a converter. The d.c. voltage in the d.c. interconnecting grid is set as a function of the electrical power to be generated by a generator.

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1. A method for generating electric power by means of a plurality of windmills (1) each being provided with a generator (8) and a rectifier (9) for feeding direct current to a common d.c. interconnecting grid (3), the electrical d.c. power from the windmills 1) being conducted via the common d.c. in

1. A method for generating electric power by means of a plurality of windmills (1) each being provided with a generator (8) and a rectifier (9) for feeding direct current to a common d.c. interconnecting grid (3), the electrical d.c. power from the windmills 1) being conducted via the common d.c. interconnecting grid (3) to a converter (10) and in the converter (10) being converted into alternating current and output to an a.c. grid (5) characterized by the step of setting the common d.c. voltage in the d.c. interconnecting grid (3) from the respective rectifiers at a common level selected to generate the electrical power from the plurality of windmills with an optimum efficiency.