DTC of an FSTPI‐fed induction motor drive with extended speed range

This work is developed within the improvement of the performance of DTC based position control of an induction machine. The paper is devoted to the presentation of a comparison study between three DTC strategies applied in position control of an induction motor: (i) the Takahashi basic strategy using a two-level inverter and considering six sectors, (ii) a strategy based on the Takahashi one using a two-level inverter where twelve sectors have been considered instead of six and (iii) a strategy dedicated to high voltage applications using a three-level inverter and considering twelve sectors. Simulation results have clearly shown that the three DTC strategies offer a high dynamic of the motor position control. However, the first DTC strategy is penalized at low speeds by high torque ripple and by the demagnetization problem. This latter has been completely discarded by the use of the three-level inverter and the associated DTC strategy. On the other hand, the second and the third DTC strategies are relatively more complicated to implement.

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“…where n is the order of the harmonic, I asn is the i as amplitude of the n th harmonic component and p is the number of harmonics [1,2,9].…”

Section: Performance Criteriamentioning

confidence: 99%

DTC based position control induction motor a comparison between different strategies

Bouzidi

Yangui

Guermazi

et al. 2009

2009 6th International Multi-Conference on Systems, Signals and Devices

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“…Several works have been reported in the literature dealing with FSTPI fed AC motor drives. Two major trends have been distinguished such that the FSTPI is used as a reconfigured topology of the SSTPI following a switch/leg failure [1], [2], [3], or to improve the drive cost-effectiveness [4], [5], [6], [7]. However, to the authors knowledge, the sole work aimed at TSTPI fed AC machines drives is the one developed by Masmoudi et al [8] who treated the analysis and control of TSTPI fed brushless DC motor drives.…”

Section: Introductionmentioning

confidence: 99%

DTC strategies dedicated to IM drives fed by reduced-structure inverters emulating the conventional one: Application to low-cost automotive actuators

Ouarda

Nouira

Badsi

et al. 2014

2014 17th International Conference on Electrical Machines and Systems (ICEMS)

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This work is aimed at the development of novel direct torque control (DTC) strategies devoted to induction motor (IM) drives fed by two reduced-structure threephase inverters, such that (i) the four-switch three-phase inverter (FSTPI) also called B4-inverter and (ii) the threeswitch three-phase inverter (TSTPI) also called B3-inverter or delta-inverter. The proposed strategies make it possible the emulation of the operation of the conventional sixswitch three-phase inverter (SSTPI), thanks to appropriate combinations of the unbalanced voltage vectors intrinsicallygenerated by the reduced-structure inverters, leading to the synthesis of the six balanced voltage vectors of the SSTPI. Doing so, one can suitably implement the vector selection table introduced by Takahashi in the earliest-DTC strategy. The resulting high performance allied to crucial cost benefits make both FSTPI-and TSTPI-fed IM drives under the control of the proposed DTC strategies very attractive in large-scale production industries such as the automotive one.

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“…Some applications such as electric and hybrid propulsion systems, should be as reliable as possible. Within this requirement, the reconfiguration of the SSTPI into four-switch three-phase inverter (FSTPI) or into three-switch three-phase inverter (TSTPI), in case of a switch/leg failure, is currently under investigation (Ben Rhouma and Masmoudi, 2008;El Badsi and Masmoudi, 2008;El Badsi, 2010;Hoang et al, 2011;Wang et al, 2011). A DTC strategy dedicated to TSTPI fed IM drives has been proposed in Ben Rhouma and Masmoudi (2008).…”

Section: Introductionmentioning

confidence: 99%

Six‐switch inverter emulation based DTC strategy dedicated to three‐switch inverter‐fed induction motor drives

Badsi

2012

COMPEL

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Purpose -The aim of this paper is to propose a novel direct torque control (DTC) strategy for induction motor (IM) drives fed by three-switch three-phase inverter (TSTPI). The introduced strategy is based on the emulation of the operation of the conventional six-switch three-phase inverter (SSTPI). Design/methodology/approach -The proposed strategy has been achieved thanks to suitable combinations of the six unbalanced voltage vectors intrinsically generated by the TSTPI, leading to the synthesis of the six balanced voltage vectors of the SSTPI. This approach has been adopted in the design of the vector selection table of the proposed DTC strategy which considers a subdivision of the Clarke plane into six sectors. Findings -Simulation results have revealed that, thanks to the proposed DTC strategy, TSTPI fed IM drives exhibit interesting performance.Research limitations/implications -The results obtained by simulation should be validated by experiments. Originality/value -The drawbacks associated with the application of unbalanced voltage vectors in previous DTC strategies dedicated to TSTPI have been eradicated thanks to the synthesis of six balanced voltage vectors using appropriate combinations of the TSTPI intrinsic ones.

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DTC of an FSTPI‐fed induction motor drive with extended speed range

Cited by 9 publications

References 14 publications

DTC based position control induction motor a comparison between different strategies

DTC based position control induction motor a comparison between different strategies

DTC strategies dedicated to IM drives fed by reduced-structure inverters emulating the conventional one: Application to low-cost automotive actuators

Six‐switch inverter emulation based DTC strategy dedicated to three‐switch inverter‐fed induction motor drives

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