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Title:
A HYBRID EXCITATION SYNCHRONOUS GENERATOR WITH INNER AND OUTER VOLTAGE REGULATION SYSTEMS AND ITS VOLTAGE REGULATION METHOD
Document Type and Number:
WIPO Patent Application WO/2009/026767
Kind Code:
A1
Abstract:
A hybrid excitation synchronous generator with inner and outer voltage regulation systems and its voltage regulation method. A closed circuit made up of a winding (16,16a) and/or a conductor strip as well as a rectifying assembly is provided on a rotor core (18,18a) of the synchronous generator. When the rotor assembly (1) operates, the electromagnetic field generated by the closed circuit has the same direction as the permanent magnetic field generated by a permanent magnet (10). The two magnetic fields are mixed and superposed for common excitation in order to regulate the output voltage of the generator inside. The synchronous generator also has an outer voltage regulation system. The outer voltage regulation system monitors the voltage of the output line of the stator working winding (23) in real time and computes the error between the measured voltage and the rated voltage. Based on the difference between the error and the setting reference error, one of the different taps corresponding to the different output voltage in the stator working winding (23) is automatically selected so as to regulate the output voltage of the generator outside.

Inventors:
ZHANG LEITING (CN)
Application Number:
PCT/CN2007/070604
Publication Date:
March 05, 2009
Filing Date:
August 31, 2007
Export Citation:
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Assignee:
ZHANG LEITING (CN)
International Classes:
H02K21/04; H02K21/48
Foreign References:
CN2720713Y2005-08-24
CN2577499Y2003-10-01
EP1233498A22002-08-21
US5663605A1997-09-02
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (Xuhui, Shanghai 3, CN)
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