WIND TURBINE GENERATOR, METHOD OF CONTROLLING THE SAME, AND WIND TURBINE GENERATING SYSTEM

摘要

Damage is prevented on electric devices in a case where a generator is installed in a cold weather. A wind turbine generator includes a power supply unit connected to a utility grid via a switch gear; a utility grid voltage measuring unit provided between the power supply unit and the utility grid, for measuring a voltage of the utility grid; and a temperature measuring unit for obtaining an ambient temperature of the power supply unit. In a case where a measurement value of the temperature measuring unit or an ambient temperature of the power supply unit 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 and the voltage measured by the utility grid voltage measuring unit is smaller than a preset voltage threshold, the switch gear operates to interrupt the connection between the power supply unit and the utility grid.