Simple Sensorless Control for High-Speed Operation of Switched Reluctance Generator

The novel control method of switched reluctance generator

“…Therefore, higher output power can be obtained in the same working point compared to the GCCC control. Previous publications have reported that a transition into the continuousconduction mode occurs without the zero-volt state [11][12][13][14].…”

PM-Assisted Synchronous Reluctance Machine Flux Weakening Control for EV and HEV Applications

“…However, these technologies require high density magnetic materials to produce the rotor flux, usually sintered neodymium-iron-boron (NdFeB) alloys, and other rare-earth materials, such as dysprosium (Dy), leading to high price, risk of depletion and resource monopoly issues [2], [3]. For these reasons, alternative technologies that do not rely on these PM materials are attracting considerable attention, such as Switched Reluctance Machines (SRMs) [4], [5] and Induction Machines (IMs) [6]. Among them, Synchronous Reluctance Machines (SynRMs) can be highlighted due to their high temperature operation capability, high efficiency, and small [7] (usually ferrite magnets) or eventually non use of PMs [8].…”

SRG converter topologies for continuous conduction operation: a comparative evaluation

“…The constant power range extension can be achieved by controlling SRM in continuous conduction mode (CCM), in which phase currents continuously flow through the machine phase windings [14][15][16][17][18][19][20][21][22][23]. At high speed, SRM operation in CCM provides significantly higher power in comparison with SRM operation in discontinuous conduction mode (DCM), in which the phase current starts at zero and returns to zero during each current excitation cycle [14][15][16].…”

“…Very different power converter circuits for SRM control can be found in the literature [21][22][23][24][25][26][27][28][29][30][31]. In most of the above-mentioned papers, SRM power converter topologies for DCM operation were analysed [24][25][26][27][28][29][30][31].…”

“…It should be noted that in [21][22][23] no comparison of optimal output power when SRG operates with Derishzadeh and with Vujicic-Calasan converters is considered. Also, no discussion about converter complexity comparison between Vujicic-Calasan and any other converters is presented in [23].…”