Wind power applications of doubly-fed reluctance generators with parameter-free hysteresis control

Jovanovic, Milutin and Chaal, Hamza (2017) Wind power applications of doubly-fed reluctance generators with parameter-free hysteresis control. Energy Conversion and Management, 134. pp. 399-409. ISSN 0196-8904

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Abstract

The development and practical implementation aspects of a novel scheme for fast power control of the doubly-fed reluctance generator with a low-cost partially-rated converter, a promising brushless candidate for limited speed ranges of wind turbines, are presented in this paper. The proposed concept is derived from the fundamental dynamic analogies between the controllable and measurable properties of the machine: electro-magnetic torque and electrical power, and flux and reactive power. The algorithm is applied in a stationary reference frame without any knowledge of the machine parameters, including rotor angular position or velocity. It is then structurally simpler, easier to realize in real-time and more tolerant of the system operating uncertainties than model-based or proportional-integral control alternatives. Experimental results have demonstrated the excellent controller response for a variety of speed, load and/or power factor states of a custom-built generator prototype.

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