gerador de turbina eólica, método de controle deste, e sistema de geração de turbina eólica

摘要

It is an object to prevent damage on electric devices in a case where a generator is installed in a cold weather. The invention provides a wind turbine generator 2 including: a power supply unit 23 connected to a utility grid 10 via a switch gear 3; a utility grid voltage measuring unit 26 provided between the power supply unit 23 and the utility grid 10, for measuring a voltage of the utility grid 10; and a temperature measuring unit 21 for obtaining an ambient temperature of the power supply unit 23. In a case where a measurement value of the temperature measuring unit 21 or an ambient temperature of the power supply unit 23 estimated based on the measurement value is smaller than a first temperature threshold determined based on a function guarantee temperature of the power supply unit 23 and the voltage measured by the utility grid voltage measuring unit 26 is smaller than a preset voltage threshold, the switch gear 3 operates to interrupt the connection between the power supply unit 23 and the utility grid 10.