Dual-Three Phase Induction Machine Drives Control—A Survey

A novel five-level optimized carrier multilevel PWM quad-inverter six-phase AC drive

“…Mostly suffers with power parts and survey reveals 31-37 % of faults is occurred by power parts with IGBT devices and also due to capacitors and gate control methods [1,[6][7][8]. On the other hand, the technology development in multiphase ac drives make them candidates to replace standard three-phase drives in configurations with limited rating (MOSFET/IGBT) devices [9][10][11][12][13][14][15][16][17][18][19]. Many topologies are addressed for multiphase versions, but dual three-phase (sixphase) drives have shown good reliability, redundant structure, limited dc link ripples, high power density, and fault tolerant capabilities [13][14][15][16][17].…”

“…On the other hand, the technology development in multiphase ac drives make them candidates to replace standard three-phase drives in configurations with limited rating (MOSFET/IGBT) devices [9][10][11][12][13][14][15][16][17][18][19]. Many topologies are addressed for multiphase versions, but dual three-phase (sixphase) drives have shown good reliability, redundant structure, limited dc link ripples, high power density, and fault tolerant capabilities [13][14][15][16][17]. Usually configured by two adjacent phases spatially shifted by 600 (symmetrical type) [9,13] or by 300 (asymmetrical one) [14][15][16][17] on applications.…”

“…Many topologies are addressed for multiphase versions, but dual three-phase (sixphase) drives have shown good reliability, redundant structure, limited dc link ripples, high power density, and fault tolerant capabilities [13][14][15][16][17]. Usually configured by two adjacent phases spatially shifted by 600 (symmetrical type) [9,13] or by 300 (asymmetrical one) [14][15][16][17] on applications. Advantages include easy splitting the phases as two standard sets of threephases driven by multiple classical VSIs as multiphase converter [14][15][16][17][18].…”

“…Also, the benefits are compromised to classical MLI's. Output qualities are assured in additional by common-mode currents cancellation are carried out by the PWM techniques or by deliberately kept isolated dc sources [13][14][15][16][17][31][32][33]. Dual inverter with z-source impedance network in the dc link side configured and addressed for buck/boost the output voltages [31] with limited common-mode components and for grid integration with/without isolation transformer [32].…”

“…Modular power converter consists of four standard two-level VSIs and additionally each phase of VSIs as one bi-directional (IGBT) switch and links the neutral through two capacitor. Each VSI are connected across the open-end windings to frame six-phase multilevel converter [13]. Conformity of zerosequence components is null, since all four dc source are isolated by construction [14-17, 22-24, 33].…”