CUED Publications database

Fault-tolerant model predictive control of a wind turbine benchmark

Yang, X and Maciejowski, JM (2012) Fault-tolerant model predictive control of a wind turbine benchmark. IFAC Proceedings Volumes (IFAC-PapersOnline), 8. pp. 337-342. ISSN 1474-6670

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Abstract

This paper aims to solve the fault tolerant control problem of a wind turbine benchmark. A hierarchical controller with model predictive pre-compensators, a global model predictive controller and a supervisory controller is proposed. In the model predictive pre-compensator, an extended Kalman Filter is designed to estimate the system states and various fault parameters. Based on the estimation, a group of model predictive controllers are designed to compensate the fault effects for each component of the wind turbine. The global MPC is used to schedule the operation of the components and exploit potential system-level redundancies. Extensive simulations of various fault conditions show that the proposed controller has small transients when faults occur and uses smoother and smaller generator torque and pitch angle inputs than the default controller. This paper shows that MPC can be a good candidate for fault tolerant controllers, especially the one with an adaptive internal model combined with a parameter estimation and update mechanism, such as an extended Kalman Filter. © 2012 IFAC.

Item Type: Article
Uncontrolled Keywords: Extended Kalman Filter Fault tolerant control Model predictive control Wind turbine benchmark
Subjects: UNSPECIFIED
Divisions: Div F > Control
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:12
Last Modified: 20 Dec 2014 19:02
DOI: 10.3182/20120829-3-MX-2028.00134