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- W2972571036 abstract "This study proposes a method to improve the permanent magnet synchronous motor (PMSM) dq0 model for torque using incremental inductance. The torque model is essentially a partial differential equation considering flux linkage and magnetic energy. In practice, non-ideal factors, such as saturation non-linearity, the cogging structure, and the distortion current, increase the difficulty of solving this equation. In this study, two parameters related to flux linkage and magnetic energy are derived using incremental inductance. In the differential range, they are independent of the currents. Therefore, the partial derivatives of flux linkage and magnetic energy can be expressed in the form of derivatives under the saturation non-linearity conditions. Thereby a dq0 model that describes the torque ripple of a PMSM is established. This model can be used to calculate and analyse the transient characteristics of torque regardless of steady or unsteady current excitation. The main parameters of the model are obtained from finite-element analysis (FEA). To reduce the dependency on FEA in the application, a derived version of this model is obtained by extending the range of the linearisation assumption. Finally, the rationality and effectiveness of the models are proven by comparison with the FEA and experiments, respectively." @default.
- W2972571036 created "2019-09-19" @default.
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- W2972571036 date "2019-11-14" @default.
- W2972571036 modified "2023-10-14" @default.
- W2972571036 title "Improvements in the permanent magnet synchronous motor torque model using incremental inductance" @default.
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- W2972571036 doi "https://doi.org/10.1049/iet-epa.2019.0187" @default.
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