Direct-Phase Variable Modelling and Analysis of Five-Phase Synchronous Reluctance Motor for Direct-on-Line Starting

Performance Analysis of Line-Start Concentrated Dual-winding Synchronous Reluctance Machine with Capacitive Assistance

“…An experimental-based performance comparison of the dual winding SynRM was presented in [11]. A five-phase SynRM and Permanent Magnet SynRM was modelled and simulated in phase variables [12][13] and the results in phase variables tend to agree with that of the Finite Element Analysis.…”

Effect of stator winding chording on the performance of five phase synchronous reluctance motor

“…𝑙 𝑥 = 𝑣 𝑥𝑙 𝑎 𝑐 (12) Where 𝑣 𝑥𝑙 is the total volume of conductors per machine phase, the slot conductor's volume 𝑣 𝑥𝑠 and the end turn volume 𝑣 𝑥𝑒 are given in Eq. ( 13), Eq.…”

“…To minimize the harmonics, the winding configuration is modelled to suit the supply voltage, as these are very essential for the multi-phase machine. The utilization of the multi-phase machines helps in the reduction of torque pulsation as compared to the three-phase machine [9][10][11][12][13]. The recognition of the direct phase variable (DPV) model when considering analysis of machine performance during faults and unbalanced conditions cannot be ignored [4,14].…”

“…The five-phase machine has the ability to utilize the fundamental and third-harmonics of the air-gap MMF for torque, and is more capable of loss of phase (fault) tolerance when compared to a three-phase machine. Even though higher phase machine, other than the five-phase machine may look attractive, so also a recorded increase in the number of switching devices as well as the cost [10,12,13]. With consideration to the suppression of certain harmonics in the phase EMF and MMF, chording in both integral and fractional windings are encouraged [24][25][26].…”