Modified Interleaved Transformerless Inverter Configuration for Performance Improvement of a Pole-Phase Modulated Induction Motor Drive

Ch, S V S Phani Kumar; Sonti, Venu; Jain, Sachin

doi:10.1109/iccisc52257.2021.9484945

Cited by 4 publications

(14 citation statements)

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“…The interconnection and isolation of the equipotential winding help in minimizing the circulating currents produced by the instantaneous mode/pole transition. This is due to the phase angle difference in the applied stator voltage during one mode and the other [12]. Further, the DCDMI also minimizes the torque ripples, which are attributed to transitions in CMV in a given particular mode by employing a DPWM [18] in the proposed system.…”

Section: Implementation Of E-pc Imd Systemmentioning

confidence: 98%

“…1. Table I also describes the phase angle details for 3-φ, 12-pole, and 9-φ, 4- pole modes with pole formations [6,12]. Fig.…”

Section: Implementation Of E-pc Imd Systemmentioning

confidence: 99%

“…The stator and rotor fluxes align themselves as 12-pole and 4-pole, as per the connection combinations given in Table I, which is shown in Fig. stator terminals is grouped into three equipotential groups [6,12]: 'Group-A, Group-B, and Group-C' with three neutrals (N1, N2, and N3) shown in Fig. 1.…”

Section: Implementation Of E-pc Imd Systemmentioning

confidence: 99%

“…1. The two bi-directional switches are employed for interconnection and isolation of the equipotential winding during 3-φ, 12-pole, and 9-φ, 4-pole mode, respectively [6,12], as shown in Figs. 3 and 4.…”

Section: Implementation Of E-pc Imd Systemmentioning

confidence: 99%

“…Thus, these features support and make multi-phase IMD more suitable for EV applications [9,10]. Above all, the pole-changing structure of the E-PC IMD improves the range for both speed and torque [5,8,12,13].…”

Section: Introductionmentioning

confidence: 99%

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DC-Decoupled based Multi-phase Inverter Topology for Electronic Pole-changing Induction Motor Drive

Ch¹,

Sonti²,

Jain³

et al. 2022

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<p>This paper proposes a DC-Decoupled based multi-phase inverter (DCDMI) topology for electronic-pole changing (E-PC) induction motor drive (IMD) system. The given E-PC IMD with flexible wide speed and torque ranges, operates in two modes: 3-φ,12-pole and 9-φ, 4-pole mode. However, during the operation of E-PC IMD, a prevalent torque ripple exists, especially in high-pole mode. Torque ripples are due to harmonics in the stator periphery. The harmonics are attributed to common-mode current (CMC) produced by common-mode voltage (CMV) of the inverter that drives IMD. Consequently, this results in deterioration of drive performance. This paper proposes a new inverter topology for E-PC IMD, which minimizes the transitions in CMV both operating modes. Subsequently, the CMC in the stator periphery is minimized in both the modes. The required analysis and derivation for the expression of terminal voltages are also presented in this manuscript. Further, in the proposed system an interleaved switching strategy which is integrated with the DC-decoupling technique improves the over-all performance in 3-φ mode. To validate the results of the proposed DCDMI topology, a 36-slot 3.0HP 3-φ, 12-pole IM is designed, simulated, and analyzed in an Ansys environment. Simulated results are corroborated by experimentation.</p>

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Section: Implementation Of E-pc Imd Systemmentioning

confidence: 98%

“…1. Table I also describes the phase angle details for 3-φ, 12-pole, and 9-φ, 4- pole modes with pole formations [6,12]. Fig.…”

Section: Implementation Of E-pc Imd Systemmentioning

confidence: 99%

Section: Implementation Of E-pc Imd Systemmentioning

confidence: 99%

Section: Implementation Of E-pc Imd Systemmentioning

confidence: 99%