Modulation Effects in an Inverter Fed Nine-Phase Induction Motor Drive

Bastos, Rodrigo R.; Souza, Tamires Santos de; Filho, Braz J. Cardoso

doi:10.1109/tia.2019.2938739

Cited by 11 publications

(6 citation statements)

References 36 publications

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“…Moreover, the hexagonal voltage space vectors formed by Group‐II and Group‐III are phase‐shifted by 40 0 and 80 0 , respectively, with respect to that of produced by Group‐I as presented in Figure 2A. Similarly, a total of 2 9 = 512 combinations are possible for the switching vector of a nine‐phase group which are distributed over multiple locations as presented in References 19 and 21 The resultant switching vector for a nine‐phase group is as given in Equation (1).

V_{r} = ((), V_{X_{1}} e^{j 0^{0}} + V_{Y_{1}} e^{j 120^{0}} + V_{Z_{1}} e^{j 240^{0}}) + ((), V_{X_{2}} e^{j 40^{0}} + V_{Y_{2}} e^{j 160^{0}} + V_{Z_{2}} e^{j 280^{0}}) + ((), V_{X_{3}} e^{j 80^{0}} + V_{Y_{3}} e^{j 200^{0}} + V_{Z_{3}} e^{j 320^{0}})

…”

Section: Octadecagonal Svpwm Controlled Nine‐phase Imdmentioning

confidence: 96%

“…The total nine‐phase windings are re‐organized as 3 three‐phase groups namely: Group‐I ( X 1 , Y 1 , Z 1 ), Group‐II ( X 2 , Y 2 , Z 2 ), and Group‐III ( X 3 , Y 3 , Z 3 ), where the windings are phase shifted by 120 0 in each group. In addition, the performance of nine‐phase IMD with and without isolated neutrals is given in References 16,18,19 and it is found that the modeling of three isolated neutrals N 1 , N 2 , N 3 eliminates the flow of triplen harmonic currents through the phase windings.…”

Section: Octadecagonal Svpwm Controlled Nine‐phase Imdmentioning

confidence: 99%

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18‐Sided polygon voltage space vector fed nine‐phase induction machine drive for high power applications

Vemula

Keerthipati

2021

Int Trans Electr Energ Syst

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The advantages such as better fault‐tolerant capability, less space harmonic content, and requirement of power semiconductor devices with reduced voltage ratings etc., made the multi‐phase induction machines drives (IMD) best desirable for the high power applications. However, as the number of phase increases, the improvement in the LMR of the multi‐phase IMDs is not significant using the conventional SVPWM techniques provided in the literature. To address the above‐mentioned limitation, 18‐sided polygon (octadecagon) based voltage space vector generation for a nine‐phase IMD is proposed in this article without compromising in the torque harmonic profile. Using the proposed octadecagonal voltage space vector generation technique, the LMR of nine‐phase IMD is significantly improved by 26.03%, 24.28%, and 9.15% in comparison to the nine‐phase sinusoidal pulse width modulation, nine‐phase SVPWM and individual hexagonal SVPWM techniques, respectively. Efficacy of the proposed control technique is substantiated using the results obtained from ANSYS Maxwell simulation and experimentation on 5‐hp nine‐phase IMD prototype in the laboratory.

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V_{r} = ((), V_{X_{1}} e^{j 0^{0}} + V_{Y_{1}} e^{j 120^{0}} + V_{Z_{1}} e^{j 240^{0}}) + ((), V_{X_{2}} e^{j 40^{0}} + V_{Y_{2}} e^{j 160^{0}} + V_{Z_{2}} e^{j 280^{0}}) + ((), V_{X_{3}} e^{j 80^{0}} + V_{Y_{3}} e^{j 200^{0}} + V_{Z_{3}} e^{j 320^{0}})

…”

Section: Octadecagonal Svpwm Controlled Nine‐phase Imdmentioning

confidence: 96%

Section: Octadecagonal Svpwm Controlled Nine‐phase Imdmentioning

confidence: 99%

18‐Sided polygon voltage space vector fed nine‐phase induction machine drive for high power applications

Vemula

Keerthipati

2021

Int Trans Electr Energ Syst

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“…Introduces another variable S 11 , S 21 and S 31 which taking 1 if the switch k i1 is closed or −1 if the switch opened ( Fig. 3) [16][17][18][19][20][21]…”

Section: Modeling and Control Of Studied System 31 Modeling Of Grid mentioning

confidence: 99%

“…However in some cases, some degree of performance degradation is accepted. In these cases, a suitable reconfiguration might be enough to assure the minimum required performance [1,10,21]. After fault detection and isolation, a reconfiguration is necessary.…”

Section: Fault Tolerant Systemmentioning

confidence: 99%

Reconfigurable Control of PWM AC-DC-DC Converter without Redundancy Leg Supplying an AC Motor Drive

Sahraoui

Gaoui

2021

Period. Polytech. Elec. Eng. Comp. Sci.

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The purpose of this paper is the study by simulation of a fault tolerant control with Pulse Width Modulation (PWM) AC-DC-AC converter supplying a three-phase rotor field oriented induction motor. The back to back converter, is supplied with three-phase network and composed of a PWM rectifier and a voltage source inverter. Fault tolerant topology of AC-DC-AC converter that without redundancy have been studied and associated with affective and fast method of fault detection and compensation to guarantee the continuity of service, in the presence of a possible open circuit failure on the level of one of their legs. Although of the presence of open circuit on the level of one of the converter legs the control based on the Zero Sequence Signal (ZSS) assure the service continuity, the simulation results obtained prove that it is possible to maintain the good performance of the drive without redundancy leg (6/5 topology).

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“…Thus, a requirement is there with respect to changing the number of poles in the IMD in running condition without having any mechanical reconfiguration. Various solutions are given in literature for the necessary sophisticated control techniques [2,[4][5][6][7][8]10,[12][13][14][15]17] to achieve the same. Among various control techniques available in literature, the electronic pole changing (EPC) technique is most promising solution [2,4,[5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Gradual Electronic Pole Changing Technique to Minimize the Circulating Currents During Pole/Mode Transition in Induction Motor Drive

Sonti

Jain

2023

IEEE Trans. on Ind. Applicat.

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This paper proposes a control strategy for the electronic pole changing (EPC) induction motor drive (IMD) for the transition between 3-φ,12-pole mode to 9-φ,4-pole mode. The proposed control strategy employs gradual electronic pole changing (GEPC) technique which linearly demagnetizes the IMD winding from 3-φ,12-pole and magnetizes progressively to 9-φ,4-pole mode. The proposed GEPC technique is also compared with the instantaneous EPC technique for its performance. The proposed GEPC solution eliminates the issue of the circulating current, which exists in instantaneous EPC technique and is responsible for negative torque generation during pole transition from 3-φ mode to 9-φ mode. Apart from the elimination of circulating current the proposed GEPC strategy also sorts out various typical issues which exists in instantaneous EPC technique during pole/mode transition. The various issues in the instantaneous mode transition are: (i) absence of interlocking between stator and rotor fields, (ii) oscillations in the flux between the 12-pole (3-φ) and 4-pole (9φ), (iii) strengthening and weakening 4-pole formations in stator and rotor, (iv) distorted flux and pole formations, (v) dip in speed, and (vi) high oscillations/ripple content in torque and speed. Ansys simulation is done using Maxwell 2-D integrated with Twin-builder for EPC IMD for both instantaneous and proposed GEPC techniques. Further, the experimental results are presented in the paper to validate the simulation studies.

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Modulation Effects in an Inverter Fed Nine-Phase Induction Motor Drive

Cited by 11 publications

References 36 publications

18‐Sided polygon voltage space vector fed nine‐phase induction machine drive for high power applications

18‐Sided polygon voltage space vector fed nine‐phase induction machine drive for high power applications

Reconfigurable Control of PWM AC-DC-DC Converter without Redundancy Leg Supplying an AC Motor Drive

Gradual Electronic Pole Changing Technique to Minimize the Circulating Currents During Pole/Mode Transition in Induction Motor Drive

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