2020 | vol. 68 | nr. 1 | art. 8

Analysis of Magneto-Thermal-Solid Coupling Field in a Deflectable Double-Stator SRG

Zheng Li, Lei Du, Xin Wang, Liping Zhang, Qunjing Wang
Abstract
In order to improve the utilization of wind energy, a new type of deflectable double-stator switched reluctance wind power generator is proposed for the single of the rotor rotation of the existing Switched Reluctance Generator. The generator adopts inner and outer double-stator structure, the rotor shaft and the inner stator connecting shaft are connected with the relevant section bearing, which can realize the rotor deflection in a certain range, adapt to different wind directions and is suitable for various wind power generation occasions, and can improve the working efficiency of the generator. Through the simulation calculation of the coupling of the electromagnetic field, temperature field and stress field, and the comparison of unidirectional and bidirectional coupling of electromagnetic field and temperature field, the temperature rise of the designed structure, the stress due to thermal expansion and the corresponding vibration displacement are obtained. In addition, through the comparative analysis of experimental measurements and simulation data, the temperature difference is little, which verifies the correctness of the simulation. It provides a reference for studying the multi-physical field coupling calculation of generators, optimizing the structure of such generators and improving the stability of their operation.
Keywords: Multiple physical field coupling; Bidirectional coupling; Vibration displacement; Double-stator; Deflection
To cite this article: Zheng Li, Lei Du, Xin Wang, Liping Zhang, Qunjing WANG, “Analysis of Magneto-thermal-solid Coupling Field in a Deflectable Double-stator SRG”, in Electrotehnica, Electronica, Automatica (EEA), 2020, vol. 68, no. 1, pp. 68-75, ISSN 1582-5175.
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