RESEARCH PAPER
Backlash Fault Suppression Using LQ Optimal Control Based RST Controllers in Wind Turbine Systems Using Bond Graphs and Matlab/Simulink
1
Automatic Laboratory, Electrical Engieneering Departement, Faculty of Technology, 20 August 1955 University of Skikda, Algeria
Submission date: 2020-06-19
Acceptance date: 2021-07-05
Online publication date: 2021-09-27
Publication date: 2021-09-01
Acta Mechanica et Automatica 2021;15(3):154-163
KEYWORDS
ABSTRACT
The presence of backlash in wind turbines is a source of limitations as it introduces nonlinearities that reduce their efficiency in speed/torque control which affect the performance of the power quality. Because of production tolerances during rotation, the teeth contact is lost for a small angle; until it is re-established, it produces a backlash phenomenon. The desire to eliminate this phenomenon is often hard to realise due to the nonlinear dynamic behaviour, which arises with the presence of backlash fault in a system. Therefore, the goal of this study is to develop an LQ optimal control structure in a form of an R-S-T controller in order to reduce the disturbing torque transmitted inside the dead zone of a gearbox in the wind turbine system. The actual system is also developed to be used as a demonstration model at lectures or presentations. The efficacy of the proposed control is illustrated via simulations.
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| eISSN: | 2300-5319 |
| ISSN: | 1898-4088 |
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