Fremgangsmåde til drift af et vindenergisystem i tilfælde af en overspænding i nettet

摘要

The method involves propelling an electrical generator by a rotor (25). The generator is provided for delivering electrical power to an electrical network (31), which provides a supply voltage. Idle power from a wind energy plant (15) is fed into the network when an overvoltage prevails in the network, to reduce power. A monitoring is made whether the voltage is lowered to a presettable-desired value within a presettable time, and/or an idle current is delivered, which is larger or equal to a presettable idle current desired value. An independent claim is also included for a wind energy plant with an electrical generator.