Title: A control method of constant power above rated wind speed used for large wind motor set
Application Number: 200610097485 Application Date: 2006.11.10
Publication Number: 1964181 Publication Date: 2007.05.16
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02P9/04
Applicant(s) Name: Nanjing First Second Power Equipment Co., Ltd. Address:
Inventor(s) Name: Zhang Haibo;Liu Wei;Hong Feng
Attorney & Agent: tangzhi wu wangpeng xiang
Abstract:
    The related constant power control method for large wind-power motor assembly comprises: when above rated wind speed, detecting motor output power, subtracting the output power (Po) of whole wind-power motor with rated power (P*) to obtain the power error (DeltP) relative to a given propeller pitch angle (beta*); regulating the real propeller pitch angle (beta) according to last value to obtain the angular error (Deltbeta); controlling the angular error for wind-power motor blade to the given angle (beta*). This invention also employs PID control algorithm to calculate current propeller pitch angle.
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