Title: Control method for tracking maximum power point of wind electric power generation
Application Number: 200610097565 Application Date: 2006.11.07
Publication Number: 1960159 Publication Date: 2007.05.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02P9/00;G05F1/67;G05B13/02
Applicant(s) Name: Hefei Polytechnic Univ. Address:
Inventor(s) Name: Zhang Xing;Cheng Xianzhong;Xie Zhen;Yang Shuying;C
Attorney & Agent: hemei sheng
Abstract:
    The special point is the twin closed loop method for controlling rotary speed and power mutual independently. The control process includes 3 steps: during the original state, executes the power signal feedback control against the fan according to the original max power curve; during the smaller change of wind speed, executes mountain climbing method for controlling optimal power; via the rotary speed disturbance, obtains the max output power under the recent wind speed and the corresponding generator rotary speed. Then according to the original max power curve and the new added data points, obtains modified max power curve. During the larger change of wind speed, executes the power signal feedback control according to the mortified new max power curve. This method adapts the rapid change of the wind speed and is independent from the functions of the wind field and the fan. It can restrain the system disturb near the max power point effectively.
Time: 10
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