WIND TURBINE GENERATION SYSTEM

Japanese Patent JP3903967

B2

PROBLEM TO BE SOLVED: To provide a wind turbine generation system, including a wind turbine generator which uses an induction generator, wherein acceleration step out and destabilization of voltage that occur in system failure can be suppressed, and power can be continuously supplied with stability.
SOLUTION: The wind turbine generator system comprises an induction machine-type wind turbine generator that generates power from torque arising from wind power; a device that detects the rotational speed and the voltage; an alternating-current exciting generator that is connected in parallel with the induction machine-type wind turbine generator and is capable of adjusting reactive power, when necessary; and a device that carries out secondary excitation control on the alternating-current exciting generator, if the detecting device detects anomalies in the rotational speed or the voltage. When there is anomaly in the generator system, reactive power is injected into the induction machine-type wind turbine generator, to carry out stabilization control of the rotational speed and the voltage of the induction machine-type wind turbine generator.

Akihito Nakahara
Kazuo Nishihama
Kazumasa Ide
Tetsuro Fujigaki
Junji Tamura

JP2003204221A

April 11, 2007

July 31, 2003

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株式会社日立製作所

F03D9/00; H02J3/38; H02P9/00; H02P9/14; (IPC1-7): H02J3/38; F03D9/00; H02P9/00; H02P9/14

JP2003023733A
JP2002335697A
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JP2000078896A
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JP64074097A

Manabu Inoue

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