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Gap metric–based model bank construction for wind turbine predictive control
Authors:Dewen Li  Zhe Chen  Ning Li
Affiliation:1. Department of Automation, Shanghai Jiao Tong University, Shanghai, China;2. Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai Jiao Tong University, Shanghai, China
Abstract:This paper presents a novel model bank construction method for the multiple model predictive control of wind turbine system. The gap metric is used to measure the dynamic difference between the linearized models of the wind turbine system at different wind speed. Two algorithms are then proposed to divide the wind speed range in different operating regions. Meanwhile, a complete and nonredundant linear model bank is established to approximate the wind turbine system in the whole operating region. We take the robust model predictive control algorithm to design the local controller and utilize the wind speed as the switching criterion to combine the submodels. The simulation study on a 5‐MW wind turbine verifies the efficiency of the proposed method.
Keywords:gap metric  model bank construction  multiple model predictive control  wind turbine system
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