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Two-frequency-loop applied to Wind Energy Conversion System based on robust H state feedback fault tolerant control

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4 Author(s)
Qi Chen ; Faculty of Electronic and Electrical Engineering, Huaiyin Institute of Technology, Jiangsu, Huai'an, 223003, China ; Lingao Wang ; Shihu Wang ; Xiao Wang

For the Wind Energy Conversion System, when the part of the actuators is disabled, according to multi-time scale of wind speed, two-frequency-loop model is established for WECS based on the nonlinear mechanical model. According to the two-frequency-loop model, PI static optimal control is used in the low-frequency-loop, while robust H fault-tolerant control is employed in the high-frequency-loop, and then maximizes the efficiency of captured wind energy, as well as the system work well when the part of the actuators is disabled. Simulation results demonstrate that when the part of the actuators is disabled, the feasibility of two-frequency-loop control based on robust fault-tolerant control is effective.

Published in:

Control Conference (CCC), 2011 30th Chinese

Date of Conference:

22-24 July 2011