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High efficiency and quick response of torque control for a multi-phase machineUsing discrete/continuous approach: application to five-phase permanent magnet synchronous machine

Difi Djamel, Halbaoui Khaled, Boukhetala Djamel

Przegląd Elektrotechniczny

2021

R. 97, nr 4

128--133

This article presents a hybrid control strategy (Discrete/Continuous) for controlling the five-phase permanent magnet synchronous machine powered by a voltage inverter. The hybrid aspect of this approach comes from the fact of taking into account the voltage inverter and the machine in a unified manner during the modelling process, i.e. modelling includes at the same time continuous and discrete variables. Simulation results performed under Matlab/Simulink are presented and discussed for the purpose of the performances verification of the proposed control strategy. The obtained results will show in particular the principal advantages of the adopted control strategy like the enhancement of the dynamic torque response of this machine, and the oscillations’ minimization of controlled parameters such as torque and current.

W artykule zaprezentowano hybrydową strategię sterowania pięciofazowym silnikiem synchronicznym z magnesami trwałymi. Silnik zasilany jest z wykorzystaniem przekształtnika. Przedstawiono wyniki symulacji systemu. Otrzymano poprawę dynamiki momentu I zmniejszenie oscylacji.

Analysis, simulation and experimental strategies of 5-phase permanent magnet motor control

Mekri Fatima, Elghali Seifeddine Ben, Charpentier Jean-Frédéric

Archives of Electrical Engineering

2019

Vol. 68, nr 3

629--641

This paper presents a study of control strategies for 5-phase permanent magnet synchronous motors (PMSMs) supplied by a five-leg voltage source inverter. Based on the vectorial decomposition of the multi-phase machine, fictitious machines, magnetically decoupled, allow a more adequate control. In this paper, our study focuses on the vector control of a multi-phase machine using a linear proportional-integral-derivative (PID) current regulator in the cases of sinusoidal and trapezoidal back-electromotive force (EMF) waveforms. In order to determine currents’ references, two strategies are adopted. First one aims to minimize copper losses under constant torque, while the second one targets to increase torque for a given copper losses. These techniques are tested under a variable speed control strategy based on a proportional-integral (PI) regulator and experimentally validated.