PITCH CONTROL DEVICE AND SYSTEM FOR WIND POWER GENERATOR

Title:

PITCH CONTROL DEVICE AND SYSTEM FOR WIND POWER GENERATOR

Document Type and Number:

WIPO Patent Application WO/2010/032909

Kind Code:

A1

Abstract:

The present invention relates to a pitch control device and system for a wind power generator. According to one aspect of the present invention, disclosed is the pitch control device which controls the pitch of a wind power generator system. The pitch control device according to one embodiment of the present invention comprises: a generator-comparing unit which evaluates an error signal based on the difference between a generator reference signal and a generator measurement signal according to operation of the wind power generator system, a reference pitch-evaluating unit which evaluates a reference pitch using the error signal, a compensation pitch-evaluating unit which evaluates a compensation pitch using an error value of the wind power generator system, and a pitch-evaluating unit which evaluates a pitch using the reference pitch and the compensation pitch. The error value is one of either: the error voltage of a DC capacitor included in a power conversion unit of the wind power generator system, the error voltage of an interconnection point of the wind power generator system, the error speed of a rotator of the wind power generator system, and the error frequency of the interconnection point of the wind power generator system.

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Inventors:

KO HEE-SANG (KR)
KANG YUN-TAE (KR)

Application Number:

PCT/KR2009/001724

Publication Date:

March 25, 2010

Filing Date:

April 03, 2009

Export Citation:

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Assignee:

SAMSUNG HEAVY IND (KR)
KO HEE-SANG (KR)
KANG YUN-TAE (KR)

International Classes:

F03D7/04; F03D7/02

Foreign References:

JP2005083308A	2005-03-31
JP2006037850A	2006-02-09
KR20010052057A	2001-06-25
JP2005155509A	2005-06-16

Other References: