Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.

Xinjiang Goldwind Science & Technology Co., Ltd.

Goldwind Science & Technology Co., Ltd.

Jinpeng Wang

Rui Guo

Liangnian Lv

A control method and a control apparatus of a permanent magnet generator are provided, the control method includes: determining an active current reference initial value and a reactive current reference initial value of the permanent magnet generator in a current control period; searching, based on the active current reference initial value and the reactive current reference initial value, and with a target of maximizing a torque-current ratio in the current control period, an optimal active current reference value and an optimal reactive current reference value in the current control period; controlling, based on the optimal active current reference value and the optimal reactive current reference value, the permanent magnet generator to operate; in which the torque-current ratio is calculated based on a torque command value received by the permanent magnet generator from a wind turbine main controller and an output current value of the permanent magnet generator.

Control method and control apparatus of permanent magnet generator

A parameter identification method and a parameter identification apparatus for a wind turbine generator are provided, in which the parameter identification method includes: controlling the generator to no-load start and shut down by adjusting a blade angle; acquiring operating data of the generator in a duration from no-load start to shutdown of the generator; and determining parameters of the generator based on the acquired operating data of the generator.

Parameter identification method and apparatus for wind turbine generator

The present application provides a method and device for controlling a generator-side terminal voltage of a converter, and a controller of the converter. The method includes: determining an upper limit of the generator-side terminal voltage based on a present voltage value of a direct-current (DC) bus of the converter, where the generator-side terminal voltage is a voltage of an output terminal of a generator, and the output terminal is connected to the converter; determining an optimal value of the generator-side terminal voltage that minimizes a present value of a generator-side current, where the generator-side current is a current of the output terminal of the generator; setting a target value of the generator-side terminal voltage based on the upper limit and the optimal value of the generator-side terminal voltage. The target value includes a control reference value of the generator-side terminal voltage.

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Beijing, China

Jinpeng Wang