Five-phase machine employment in electric drive system is expanding rapidly in many applications due to several advantages that they present when compared with their three-phase complements. Synchronous reluctance machines(SynRM) are considered as a proposed alternative to permanent magnet machine in the automotive industry because the volatilities in the permanent magnet price, and a proposed alternative for induction motor because they have no field excitation windings in the rotor, SyRM rely on high reluctance torque thus no needing for magnetic material in the structure of rotor. This paper presents dynamic simulation of five phase synchronous reluctance motor fed by five phase voltage source inverter based on mathematical modeling. Sinusoidal pulse width modulation (SPWM) technique is used to generate the pulses for inverter. The theory of reference frame has been used to transform five-phase SynRM voltage equations for simplicity and in order to eliminate the angular dependency of the inductances. The torque in terms of phase currents is then attained using the known magnetic co-energy method, then the results obtained are typical.

Multiphase ac machine drives are now considered for various applications as they afford numerous benefits over their three-phase counterparts. As a result, using five-phase machines in electric drive systems is becoming more common in many industries. This paper presents a five-phase Synchronous Reluctance Motor (SynRM) design with a Direct Torque Control (DTC) strategy to establish the motor's dynamic simulation and reduce torque ripple resulting from the anisotropic structure of rotor to be ±5 and to control the motor speed at acceleration and deceleration. A five-phase voltage source inverter pulses are generated using a specific DTC Space Vector Modulation (DTC-SVM) technique. There are two lookup tables derived from stator flux linkage and electromagnetic torque control by using proper voltage space vectors. The technique used in this paper is considered a fast and straightforward method comparable to the other techniques. This paper also includes a control block schematic and a description of manners performance under various load situations and varied reference speeds at the transient and steady-state conditions. Lastly, simulation results achieved via Matlab/Simulinksoftware show that it was a perfect control system because the motor's real speed value strictly follows the reference speed, and all results are conventional and regular.

Nowadays, multiphase ac machine drives are taken into consideration for several applications because they offer many advantages when in contrast with their three-phase equivalent. Therefore, in various applications, there is expanding in the achievement of the five-phase machine in electric drive systems. This paper uses mathematical modelling to demonstrate the dynamic simulation of a five-phase Synchronous Reluctance Motor SynRM driven by a five-phase current-controlled space vector PWM inverter. The theory of reference frame has been employed to get the transformation of five-phase SynRM voltage equations for removing the inductances angular dependency. The pulses for an inverter are created by applying the five-phase Space Vector Pulse Width Modulation (SVPWM) method. Then, for a fivephase SynRM, an indirect rotor flux-oriented vector control technique is constructed. Furthermore, the control block diagram is also presented in this paper with performance behaviour discussion under different load conditions and variance reference speed. The equivalent controllers are appropriately proposed to provide independent torque control. Finally, the obtained simulation results are typical and demonstrated by using Matlab/Simulink.