Disturbance-free operation of a six-phase ac motor drive system

Jacobina, Cursino B.; Miranda, R.S.; Corrêa, Maurício Beltrão de Rossiter; Lima, A.M.N.

doi:10.1109/pesc.2004.1355543

Cited by 28 publications

(13 citation statements)

References 20 publications

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“…The random PWM are drawing more attentions and has been widely used in power converters and drive systems today. By randomizing the switching frequency and pulse position, the distinct switching peaks are destroyed in spectrum [16][17]. Thus, the electromagnetic interference (EMI) and acoustic noise are reduced for isolated and non-isolated DC/DC converters [18][19], voltage-source rectifiers and inverters [20], and multilevel inverters [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the electromagnetic interference (EMI) and acoustic noise are reduced for isolated and non-isolated DC/DC converters [18][19], voltage-source rectifiers and inverters [20], and multilevel inverters [21][22][23]. The converters and drive systems with random PWM have been proposed for various applications such as active power filters [24], electric vehicles [17], naval propulsion system [25], etc. Due to the random-like behavior and easy implementation, the chaotic PWM is often used to take place of random PWM to shape the harmonic spectrum [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

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Field-Oriented Control and Direct Torque Control for Paralleled VSIs Fed PMSM Drives With Variable Switching Frequencies

Wang

Chen

Cheng

et al. 2016

IEEE Trans. Power Electron.

189

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In this paper, three control schemes with variable switching frequencies are proposed and analyzed for the paralleled voltage-source inverters (VSIs) fed permanent magnet synchronous motor (PMSM) drive. The proposed schemes could be applied in the low-speed operation region of high-power drive system, where the frequency modulation index is high. Firstly, the field-oriented control (FOC) with phase-shifted chaotic space vector modulation (SVM) under synchronous frame and the FOC with phase-shifted chaotic sinusoidal pulse-width-modulation (SPWM) under stationary frame are proposed for the paralleled VSIs fed PMSM drive. The proposed phase-shifted chaotic PWM schemes not only eliminate specific switching harmonics completely but also suppress all remaining switching harmonic peaks in the spectrum. The avoidance of inherent circulating current is also considered in designing these two schemes. Secondly, the direct torque control (DTC) for the paralleled VSIs fed PMSM drive is proposed with circulating current suppression. Besides inheriting the advantages of DTC, the output currents of paralleled VSIs are kept balanced. The working principles of these three methods are presented in detail. Experimental results on a laboratory prototype are given to verify the validity of the three proposed control schemes for the paralleled VSIs fed PMSM with variable switching frequencies.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Field-Oriented Control and Direct Torque Control for Paralleled VSIs Fed PMSM Drives With Variable Switching Frequencies

Wang

Chen

Cheng

et al. 2016

IEEE Trans. Power Electron.

189

View full text Add to dashboard Cite

show abstract

“…In addition to the advantages such as small size, light weight, high power density and efficiency when compared with conventional three phase machines, they also have advantages such as high power output with low voltage and fault tolerant [4]- [7]. By increasing the number of stator winding phases, a SP-PMSG can reduces the phase current dramatically.…”

Section: Introductionmentioning

confidence: 99%

Eliminating the Third Harmonic Effect for Six Phase Permanent Magnet Synchronous Generators in One Phase Open Mode

Liu¹,

Yang²,

Li³

et al. 2014

Journal of Power Electronics

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To insure stable operation and eliminate twice torque ripple, a topology for a six phase permanent magnet synchronous generator (SP-PMSG) with a neutral point connected together was analyzed in this paper. By adopting an extended transformation matrix, the mathematic model of the space vector control was established. The voltage and torque equations were deduced while considering the third harmonic flux and inductance. In addition, the suppression third harmonic method and the closed loop control strategy were proposed. A comparison analysis indicates that the cooper loss minimum method and the current magnitude minimum method can meet different application requirements. The voltage compensation amount for each of the methods was deduced which also takes into account the third harmonic effect. A simulation and experimental result comparison validates the consistency through theoretical derivation. It can be seen that all of the two control strategies can meet the requirements of post-fault.

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“…Defining proper reference value of stator currents for drive system is then a solution to reduce the torque oscillations [7]. In order to reduce torque oscillations and losses in fault conditions, some fault-tolerant operation strategies have been introduced in [8][9]. Recently, controlling multi-phase induction machines in healthy and specially one phase opening conditions have been reported [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Analysis and control of six-phase induction machines in unbalanced operating situation due to phase opening

Taherzadeh

Carriere

Joorabian

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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This paper deals with speed control of a squirrel cage six-phase induction machine (SC6PIM) in phase opening occurrences. A decoupled model of induction machine with unbalanced structure is given to analyze the phase opening operation of the SC6PIM. In order to reduce torque oscillations created in phase opening events, a fault-tolerant operation method by using indirect rotor field oriented control (IRFOC) technique is proposed and used to control the speed of the SC6PIM in each faulty operation. The proposed controller will be renewed in each fault situation of machine regarding the number and type of missed phases. Furthermore, in this paper, switching between controllers in some different cases is investigated and real time initial conditions setting for controllers is proposed to minimize the transient problems in switching instant. To evaluate the performance of proposed method, the experimental results are obtained on a small SC6PIM rated at 90 W.

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Disturbance-free operation of a six-phase ac motor drive system

Cited by 28 publications

References 20 publications

Field-Oriented Control and Direct Torque Control for Paralleled VSIs Fed PMSM Drives With Variable Switching Frequencies

Field-Oriented Control and Direct Torque Control for Paralleled VSIs Fed PMSM Drives With Variable Switching Frequencies

Eliminating the Third Harmonic Effect for Six Phase Permanent Magnet Synchronous Generators in One Phase Open Mode

Analysis and control of six-phase induction machines in unbalanced operating situation due to phase opening

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