Performance and design of induction motors with square-wave excitation

McLean, G.W.; Nix, G.F.; Alwash, S. R.

doi:10.1049/piee.1969.0254

Cited by 20 publications

(4 citation statements)

References 2 publications

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“…This will ensure satisfactory performance of the inverter-fed motor even at lower speeds. It has also been established that the Higher Phase Order motors have better electrical efficiency compared to that of a 3Ø motor [3]. This has resulted in a substantial increase in the interest for multi-phase/Higher phase order drive systems worldwide [2].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Special Connection Scheme of Multi winding Transformers for Three to Five Phase Power Transformation

Kandolkar¹,

Karapurkar²

2016

International Journal of Innovative Research in Electrical, Ele

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Multiphase (˃3Ø) systems are greatly under research recently due to their inherent advantages compared to their three-phase (3Ø) counterparts. The Multiphase system applicability is explored in electric power generation, transmission, and utilization. The first multiphase motor drive proposal was given by Ward and Harrer way back in 1969.The grid supply is available as three phase supply, hence there is a static phase transformation system required to obtain a multiphase supply from the available three-phase supply. Multiphase Inverters and Special Transformer connection Technique are two methods used to convert Three-phase supply to Five-phase supply. In this paper three to five phase transformation using special multi-winding transformer connection scheme is presented. Three single phase Multiwinding transformers are designed, two transformers having one primary and three secondary windings and the third transformer has one primary and two secondary windings. The proposed transformer connection has three phase input and outputs five phases to transform balanced fixed voltage-fixed frequency three phase power into balanced fixed voltage-fixed frequency five phase power at its output. The special connection scheme of multi-winding transformers is simulated by using "SIMPOWERSYSTEMS" block sets of MATLAB/SIMULINK software.

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Section: Introductionmentioning

confidence: 99%

Simulation of Special Connection Scheme of Multi winding Transformers for Three to Five Phase Power Transformation

Kandolkar¹,

Karapurkar²

2016

International Journal of Innovative Research in Electrical, Ele

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“…Multiphase induction machine drives possess several advantages over conventional three phase induction machine drives in high-power applications [1][2][3][4][5][6][7][8][9][10]. Besides better fault tolerance and higher reliability, the advantages of multi-phase induction machines include: (i) reduction in the: amplitude of torque pulsation, rotor harmonic currents, current per phase without increasing the phase voltage and dc link current harmonics, (ii) the increase in: machine power and torque per rms current for the same volume machine, and torque pulsation frequency.…”

Section: Introductionmentioning

confidence: 99%

Analysis of brush DC equivalent controlled multiphase cage rotor induction machines

Gule

Kamper

2013

4th International Conference on Power Engineering, Energy and Electrical Drives

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In a brush dc equivalent (BDCE) controlled machine, quasi-square like constant air gap flux density and rotor induced voltage waveforms are utilized. Analytical expressions for calculating the developed power, flux density, stator and rotor copper losses for the BDCE controlled cage rotor multiphase induction machine are developed in this paper. From analysing these expressions, it is found that, for a BDCE controlled machine with a certain torque and a certain flux density, there is a best (optimal) combination ratio of field to torque phases. Also, in this paper, measurement results in a prototype cage rotor multiphase induction machine drive are presented.

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“…Using the HPO concept, inverters of large power rating can be realized with existing semiconductor devices. It has also been established that the electrical efficiency of the inverter-fed HPO motors are better compared to that of a three-phase motor [3]. Increasing the number of phases will also improve the reliability since the drive can start and run even after the failure of one of the phases.…”

Section: Introductionmentioning

confidence: 99%

Studies on inverter-fed five-phase induction motor drive

Pavithran¹,

Parimelalagan

Krishnamurthy

1988

IEEE Trans. Power Electron.

114

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The advantages of higher phase order (HPO) drives have been reviewed, and the results of the investigations of a five-phase inverter-fed induction motor are presented. Methods of improving the waveform of the motor phase current in the five-phase drive have been examined theoretically as well as experimentally. A mathematical model based on complex symmetrical components has been developed for theoretical investigations, and a prototype Eve-phase inverter-fed induction motor drive has been fabricated to conduct experimental studies. The results of the theoretical and experimental investigations under various operating modes are presented. The studies have established that the Eve-phase drive operates satisfactorily when fed from a pulsewidth-modulated inverter.

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Performance and design of induction motors with square-wave excitation

Cited by 20 publications

References 2 publications

Simulation of Special Connection Scheme of Multi winding Transformers for Three to Five Phase Power Transformation

Simulation of Special Connection Scheme of Multi winding Transformers for Three to Five Phase Power Transformation

Analysis of brush DC equivalent controlled multiphase cage rotor induction machines

Studies on inverter-fed five-phase induction motor drive

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