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2014-03-31
The Research on Flux Linkage Characteristic Based on BP and Rbf Neural Network for Switched Reluctance Motor
By
Progress In Electromagnetics Research M, Vol. 35, 151-161, 2014
Abstract
The flux and torque of switched reluctance motor (SRM) have a highly nonlinear functional relationship with rotor position and phase current, as a consequence of the double-salient structure of the stator and rotor pole and highly magnetic saturation, which is difficult to build an accurate analytic model. In order to achieve the SRM high-performance control, it is necessary to build an accurate nonlinear model for SRM. On the basis of the adequate and precise sample data, by taking advantage of neural network that has outstanding nonlinear mapping capability, this paper adopts the Back Propagation (BP) based on Levenberg-Marquardt (LM) algorithm and Radial Basis Function (RBF) neural networkto build offline models for SRM respectively. Under different requirements of model accuracy, two kinds of network are studied and compared with each other on accuracy, scale and other aspects. The research results indicate that the network scale built as SRM nonlinear model by BP neural network based on LM algorithm is smaller than the one built by RBF. Additionally, the model accuracy is higher. In terms of the Switched Reluctance Drive (SRD) which requires real-time controller, reducing the network scale will be beneficial to the online real-time control of the system.
Citation
Yan Cai, Siyuan Sun, Chenhui Wang, and Chao Gao, "The Research on Flux Linkage Characteristic Based on BP and Rbf Neural Network for Switched Reluctance Motor," Progress In Electromagnetics Research M, Vol. 35, 151-161, 2014.
doi:10.2528/PIERM14011604
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