This paper deals with the torque control of ms-phase synchronous machines where the first odd harmonics below ms are injected. A new vectorial approach to describe the voltage and current limits is proposed. Starting from the transformed dynamic equations and using the voltage and current constraints, the optimal current references is obtained. It holds for an arbitrary number of star connected phases and an arbitrary shape of the rotor flux. Some simulation results for a 7-phase motor validate the proposed control law.
Multi-phase vectorial control of synchronous motors with currents and voltages saturations / Fei, Marco; Zanasi, Roberto. - ELETTRONICO. - (2011), pp. 1589-1595. (Intervento presentato al convegno 2011 50th IEEE Conference on Decision and Control and European Control Conference, CDC-ECC 2011 tenutosi a Orlando, FL, USA nel December 12-15, 2011) [10.1109/CDC.2011.6161183].
Multi-phase vectorial control of synchronous motors with currents and voltages saturations
FEI, Marco;ZANASI, Roberto
2011
Abstract
This paper deals with the torque control of ms-phase synchronous machines where the first odd harmonics below ms are injected. A new vectorial approach to describe the voltage and current limits is proposed. Starting from the transformed dynamic equations and using the voltage and current constraints, the optimal current references is obtained. It holds for an arbitrary number of star connected phases and an arbitrary shape of the rotor flux. Some simulation results for a 7-phase motor validate the proposed control law.
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