Reduced Switch Count Dual-Winding AC Drive Systems

Miranda, R.S.; Jacobina, Cursino B.; Corrêa, Maurício B. R.; Lima, A.M.N.

doi:10.1109/pesc.2005.1581707

Cited by 5 publications

(6 citation statements)

References 16 publications

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“…In addition to the mainstream trends in the development of multiphase machines for variable-speed drive applications, along which this paper has been organized, there are also some very specific solutions [221]- [229] that do not fit any of the main categories. In majority of cases, the intended application is automotive [223]- [228].…”

Section: Other Multiphase Motor Drive Solutionsmentioning

confidence: 99%

Multiphase Electric Machines for Variable-Speed Applications

Levi

2008

IEEE Trans. Ind. Electron.

1,902

795

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Although the concept of variable-speed drives, based on utilization of multiphase (n > 3) machines, dates back to the late 1960s, it was not until the mid-to late 1990s that multiphase drives became serious contenders for various applications. These include electric ship propulsion, locomotive traction, electric and hybrid electric vehicles, "more-electric" aircraft, and high-power industrial applications. As a consequence, there has been a substantial increase in the interest for such drive systems worldwide, resulting in a huge volume of work published during the last ten years. An attempt is made in this paper to provide a brief review of the current state of the art in the area. After addressing the reasons for potential use of multiphase rather than three-phase drives and the available approaches to multiphase machine designs, various control schemes are surveyed. This is followed by a discussion of the multiphase voltage source inverter control. Various possibilities for the use of additional degrees of freedom that exist in multiphase machines are further elaborated. Finally, multiphase machine applications in electric energy generation are addressed.Index Terms-Multiphase electric machines, multiphase variable-speed drives, multiphase voltage-source inverters (VSIs).

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Section: Other Multiphase Motor Drive Solutionsmentioning

confidence: 99%

Multiphase Electric Machines for Variable-Speed Applications

Levi

2008

IEEE Trans. Ind. Electron.

1,902

795

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“…However, the scheme requires doubling of the number of switches, when compared to the traditional one. Schemes that go in the opposite direction and therefore worsen the performance by looking at the six-phase motor supply from an inverter or rectifier/inverter with a reduced switch count have also been developed for both asymmetrical six-phase induction machine [109] (VSI with five or four legs, rather than six) and symmetrical six-phase induction machine [110] (controllable rectifier/VSI with 8, 10 and 12 switches instead of full configuration with 18 switches). The main disadvantage of such reduced switch count schemes is in principle the reduction of the maximum achievable fundamental output voltage for the given DC link voltage, when compared to the full switch count configuration.…”

Section: Some Specific Solutions With Six-phase Induction Motor Drivesmentioning

confidence: 99%

Multiphase induction motor drives – a technology status review

Levi

Bojoi

Profumo

et al. 2007

IET Electr. Power Appl.

1,437

761

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The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century. Research has been conducted worldwide and numerous interesting developments have been reported in the literature. An attempt is made to provide a detailed overview of the current state-of-the-art in this area. The elaborated aspects include advantages of multiphase induction machines, modelling of multiphase induction machines, basic vector control and direct torque control schemes and PWM control of multiphase voltage source inverters. The authors also provide a detailed survey of the control strategies for five-phase and asymmetrical six-phase induction motor drives, as well as an overview of the approaches to the design of fault tolerant strategies for post-fault drive operation, and a discussion of multiphase multi-motor drives with single inverter supply. Experimental results, collected from various multiphase induction motor drive laboratory rigs, are also included to facilitate the understanding of the drive operation.

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“…As seen from (11), generated electromagnetic torque in the motor depends only on the variables of dq-subspace while from (6) and (9) it is observed that xy-subspace variables are responsible for large stator current due to small impedance which increases the losses in motor.…”

Section: Induction Motor Modellingmentioning

confidence: 99%

“…The value of estimated electromagnetic torque is obtained with (11). The reference speed (ω r * ) and measured speed (ω r ) are compared for the generation of reference torque command (T * ).…”

Section: Proposed Direct Torque Control Algorithm For 0°s Ix-phase Inmentioning

confidence: 99%

Redundant switching state based DTC for six‐phase symmetrical induction motor driven by nine‐switch inverter

Sharma

Aware

Bhowate

2019

IET Electric Power Applications

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This paper presents the implementation of direct torque control (DTC) algorithm on the symmetrical six-phase (0°d isplaced) induction motor supplied by nine-switch inverter (NSI). This configuration provides the better dc bus utilisation in comparison to symmetrical 60° displaced and asymmetrical six-phase induction motor. In the conventional topology, 12-switch two-level inverter is required to control the drive where total 64 switching states are available. In the proposed system, NSI is used to drive the motor which is having 27 switching states. The DTC algorithm is proposed with five-level torque comparator by using large, small and zero voltage vectors for reduction in torque ripples. The elimination of xy-subspace flux without affecting the merits of conventional DTC is achieved by using redundant switching states of the inverter. The experimental results under steady-and dynamic-state operation are provided with DTC algorithm on 0° displaced symmetrical six-phase motor supplied by NSI to validate the effective controlling.

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Reduced Switch Count Dual-Winding AC Drive Systems

Cited by 5 publications

References 16 publications

Multiphase Electric Machines for Variable-Speed Applications

Multiphase Electric Machines for Variable-Speed Applications

Multiphase induction motor drives – a technology status review

Redundant switching state based DTC for six‐phase symmetrical induction motor driven by nine‐switch inverter

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