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This paper analyzes different aspects of the maximum-torque-per-ampere (MTPA) vector control of interior permanent-magnet synchronous motors at steady state and transient. Two different implementations are considered: a nonlinear-model-based MTPA profile including saturation and cross-saturation effects and a technique based on the maximization of the motor input power versus stator current. Furthermore,...
A novel control technique is proposed aimed to efficiency optimization in scalar controlled induction motor drives. The proposed approach consists in modulating of the value of the magnetizing flux according to the load. Differently from other optimization methods, the proposed approach is based on a constant-optimal slip control, and then the model of the machine is not required to evaluate the power...
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