Performance improvement in six‐phase symmetrical induction motor by using synthetic voltage vector based direct torque control

Sharma, Sohit; Aware, Mohan V.; Bhowate, Apekshit; Levi, E.

doi:10.1049/iet-epa.2018.5983

Cited by 7 publications

(3 citation statements)

References 30 publications

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“…Performance of the six-phase induction machine with active voltage vector-based direct torque control to reduce the common-mode voltage is found in Ref. 18 . The vector space decomposition (VSD) method for the dual three-phase machine is introduced in Ref.…”

Section: Introductionmentioning

confidence: 99%

Modified SVPWM technique for CMV reduction in asymmetrical dual three phase induction machine drive

Chaudhury,

Pathak,

Singh

2023

Sci Rep

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Due to its advantages, the asymmetrical dual three-phase induction motor drive is a strong choice in high-power applications. However, the common-mode voltage produced by the voltage source inverters affects the winding insulation and damages the bearings. Common-mode voltage is also responsible for electromagnetic interference and leakage currents. This paper, therefore, analyses the common-mode voltage produced by the inverter supplying a dual three-phase induction motor drive and proposes a novel modified space vector decomposition-based Space Vector Pulse Width Modulation (SVPWM) technique for common mode reduction. The vector space decomposition-based space vector modulation technique offers excellent flexibility as it reduces the common-mode voltage (CMV) by exploiting the additional degree of freedom in a dual three-phase system. The common-mode voltage (CMV) can be reduced to one-sixth of the DC link voltage compared to the highest CMV, i.e. half of the DC-link voltage produced in conventional space vector modulation. The proposed method is also validated experimentally to demonstrate the effectiveness of the proposed scheme in terms of the amplitude of CMV, pulsations, and total harmonic distortion(THD) in current.

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Section: Introductionmentioning

confidence: 99%

Modified SVPWM technique for CMV reduction in asymmetrical dual three phase induction machine drive

Chaudhury,

Pathak,

Singh

2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…For this reason, with a greater number of inverter voltage levels, different principles are approached for selecting voltage vectors that render the original simple principle more complex or reduce the bandwidth of the system by selecting an adjacent voltage vector [17]. Multiphase machines and corresponding inverters also provide a better spatial resolution of the voltage vector leading to the torque ripple reduction [18][19][20]. However, multiphase machines are still not in the wider commercial production and use, which reduces the attractiveness of such solutions.…”

Section: Introductionmentioning

confidence: 99%

Improvements of torque ripple reduction in DTC IM drive with arbitrary number of voltage intensities and automatic algorithm modification

2021

Turk J Elec Eng & Comp Sci

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Techniques of direct torque control are very common in high-performance electric motor drives. Retaining the good features of the conventional DTC and reducing torque ripple have been the subject of many years of research work on improving these algorithms. This paper presents the DTC algorithm with discretized voltage vectors based on the use of conventional switching table (ST-DTC). This algorithm enables a significant torque ripple reduction by defining the corresponding number of the given voltage intensity while retaining calculation simplicity and fast torque response typical of the ST-DTC algorithms. The proposed algorithm has ability for its automatic modification depending on the defined number of voltage intensities by the user. In a simple way, the proposed algorithm enables the influence compensation of the induced electromotive force (EMF) for a torque error at high speed. Experimental results obtained by using MSK2812 digital control platform confirm the significant reduction of the torque ripple with an increase of the number of defined voltage intensities.

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“…Multiple PV panels are connected in series and parallel to obtain desired voltages and currents. However, these PV panels become ineffective and inefficient due to panel mismatch, partial shading and hot spot effects [3][4][5]. To overcome these problems, a modular DC-DC resonant converter is introduced as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of high efficient dual control modular resonant converter for DC microgrid

Reddy¹,

Suryawanshi²,

Talapur³

et al. 2020

IET Power Electronics

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A modular structured 12-kW resonant converter with effective zero voltage switching (ZVS) is proposed to integrate renewable energy lower voltage source to the microgrid. In this study, duty cycle control is adopted until ZVS fails and thereafter, sequential and parallel adjustment of duty cycle and the switching frequency is proposed for effective output voltage regulation. The proposed control logic ensures ZVS and output voltage regulation over wide load range even at very light loads compared to conventional control methods. Further, it maintains very high system efficiency with narrow range of frequency operation. Hence, it is easy to implement using a conventional digital controller. To minimise ripple current, each of the four converters is provided with 90° phase delayed gate pulses under the proposed control scheme. This study presents an optimal design of the tank circuit elements assimilating high permeable powder cores to reduce magnetic loss and operation with IGBT switches at an optimum point to reduce conduction loss for enhanced system efficiency. A 12-kW, 400-1600 V developed prototype is tested and experimental results are discussed.

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Performance improvement in six‐phase symmetrical induction motor by using synthetic voltage vector based direct torque control

Abstract: The version presented here may differ from the published version or from the version of the record. Please see the repository URL above for details on accessing the published version and note that access may require a subscription.

Cited by 7 publications

References 30 publications

Modified SVPWM technique for CMV reduction in asymmetrical dual three phase induction machine drive

Modified SVPWM technique for CMV reduction in asymmetrical dual three phase induction machine drive

Improvements of torque ripple reduction in DTC IM drive with arbitrary number of voltage intensities and automatic algorithm modification

Design and implementation of high efficient dual control modular resonant converter for DC microgrid

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