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Multivariable control algorithm for laboratory experiments in wind energy conversion
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DOI：10.1016/j.renene.2015.04.031.png)
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Abstract
En 中文
Advanced experimentation with wind energy conversion systems is described. The real time multivariable control of a wind turbine is designed for investigation of theoretical concepts and their physical implementation. The control system includes a speed controller and a disturbance estimator for enhanced robustness of the control system. In order to provide students with deeper understanding of wind energy and energy extraction, a maximum power point tracking algorithm is developed and integrated into the control system. The multivariable control system is implemented in a small wind turbine laboratory system. A power electronic interface is based on two DC DC converters: a buck converter for control of the speed and a boost converter controlling the load voltage. Experimental results demonstrate effectiveness of the multivariable control system for a wind turbine providing maximum power extraction. The experiment can be reconfigured for teaching various control concepts to both undergraduate and graduate students. (C) 2015 Elsevier Ltd. All rights reserved.
Keywords:
Multivariable control
Wind turbine
DC generator
Speed control
Maximum power extraction
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