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2016 IEEE Transportation Electrification Conference and Expo (ITEC)
Due to the nonlinearity of the flux-linkage profiles of the interior permanent magnet synchronous machine (IPMSM), the conventional motor model cannot be used for both maximum torque per ampere (MTPA) control and torque estimation. This paper proposes a nonlinear flux-linkage model for IPMSM with eight coefficients to fit the real d-axis flux-linkage, q-axis fluxlinkage, MTPA, and torque. The corresponding torque equation and MTPA condition are presented. The factors in the proposed model candoi:10.1109/itec.2016.7520215 fatcat:maiccez2grhengycesauzzl5jy