A Four-Level Inversion Scheme for a 6$n$-Pole Open-End Winding Induction Motor Drive for an Improved DC-Link Utilization

Somasekhar, V. T.; Reddy, B. Venugopal; Sivakumar, K.

doi:10.1109/tie.2013.2288212

Cited by 31 publications

(9 citation statements)

References 28 publications

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“…-the voltage equations of the stator and rotor in the x-y coordinate system, which rotates at arbitrary angular speed [1,3,10]. It is assumed that the both inverters are supplied from separate ideal DC voltage sources and that the voltage values u d1 and u d2 are the same for the two inverters.…”

Section: Mathematical Model Of Five-phase Induction Motormentioning

confidence: 99%

“…The topology is simple to realize while offering a higher number of switching states in comparison to standard converters and allows to increase the accuracy of control [1,3,10]. The control structures of the multi-phase induction motor with an open-end stator winding allow to generate voltage waveforms, which are comparable with voltage waveforms obtained from multilevel inverters.…”

Section: Introductionmentioning

confidence: 99%

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Field-oriented control of five-phase induction motor with open-end stator winding

Listwan

Pieńkowski

2016

Archives of Electrical Engineering

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Abstract:The mathematical model of the five-phase squirrel-cage induction motor and the system of the dual five-phase voltage source inverter have been presented. The control methods and control systems of the field-oriented control of the five-phase induction motor with an open-end stator winding are described. The structures of the direct fieldoriented control system (DFOC) and the Indirect Field-oriented control system (IFOC) with PI controllers in outer and inner control loops are analyzed. A method of space vector modulation used to control the system of the dual five-phase voltage source inverter has been discussed. The results of simulation studies of the field-oriented control methods are presented. Comparative analysis of the simulation results was carried out.

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Section: Mathematical Model Of Five-phase Induction Motormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Field-oriented control of five-phase induction motor with open-end stator winding

Listwan

Pieńkowski

2016

Archives of Electrical Engineering

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“…2. As per the UPSC SVPWM, if V r1 is in sector‐1, the switching pattern will be 7 1 ‐2 1 ‐1 1 ‐8 1 ‐1 1 ‐2 1 ‐7 1 and V r2 will be in sector‐4 and switching pattern will be 7 2 ‐4 2 ‐5 2 ‐8 2 ‐5 2 ‐4 2 ‐7 2 [21]. The procedure for generating gating pulses for inverter‐3 and inverter‐4 are similar to the gating pulses for inverter‐1 and inverter‐2.…”

Section: Inverter Configuration and Upsc Space Vector Pwmmentioning

confidence: 99%

UPSC SVPWM controlled multi‐level inverter topology for multiple pole‐pair induction motor drive for minimising torque ripple

Keerthipati

Nallamekala

2016

IET Power Electronics

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The demand for multi-level inverters is increasing progressively in motor control applications. Many pulse width modulation (PWM) techniques are proposed in the literature and one of the popular modulation methods is unipolar phase shifted carrier (UPSC) PWM. This PWM technique is commonly used in uninterrupted power supply applications where transformer multiple primary windings are connected to two-level inverters. However, this modulation technique is not popularly used in drives applications because a conventional induction motor consists of only two terminals per phase. In this study, a multi-level inverter configuration for four pole induction motor drive is presented, where it is compatible to use the above mentioned PWM technique. By using this multi-level inverter configuration and UPSC PWM technique, all lower order harmonics are shifted to four times the switching frequency, which in turn reduces the torque ripple considerably. The proposed concept is tested on 5hp four-pole induction motor in MATLAB/Simulink and finite element analysis and is also experimentally verified with a laboratory prototype. The simulation and experimental results show the effectiveness of the proposed topology and demonstrate the improvement in harmonic profile and torque ripple.

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“…In order to shift the lower order harmonics to higher levels, many inverter configurations and PWM techniques are presented [9]- [10]. On the other hand the magnitude of dc voltage requirement is reduced to half compared to conventional configurations by feeding induction motor stator winding from both sides (open end winding induction motor) [11]- [13]. By extending the above mentioned concept, dc voltage requirement is further reduced by feeding identical voltage profile winding coils from both sides individually [14]- [15].…”

Section: Introductionmentioning

confidence: 99%

A multi-level inverter configuration for 4n pole induction motor drive by using conventional two-level inverters

Rao

Kumar

Sivakumar

2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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A multi-level inverter configuration for 4n pole induction motor drive is presented in this paper. This topology is developed using three two-level inverters and two isolated dc sources. Among these three two-level inverters one inverter is switched at fundamental frequency and remaining two inverters are switched at higher frequency. Two isolated dc sources with equal magnitude are used in this topology to block the path for zero sequence currents. Low frequency operated inverter is connected to one dc source and high frequency operated inverters are connected to other dc source. The magnitude of dc source voltage required in this topology is four times lesser than the dc source required in conventional five-level NPC inverter configuration. The first center band harmonics are cancelled by providing 180 0 phase shift between the high frequency carrier signals. This topology can be operated during the failure of any one inverter switches or any one dc source which will increase the reliability of the system. The number of switching devices used in this configuration is considerably less compared to conventional five-level inverters. This configuration is best suitable for high power applications where low frequency operated inverter can use thyristors as switching devices. The proposed topology is simulated in MATLAB/Simulink with (5HP) four pole induction motor and results are presented to show the validity of this configuration.

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A Four-Level Inversion Scheme for a 6$n$-Pole Open-End Winding Induction Motor Drive for an Improved DC-Link Utilization

Cited by 31 publications

References 28 publications

Field-oriented control of five-phase induction motor with open-end stator winding

Field-oriented control of five-phase induction motor with open-end stator winding

UPSC SVPWM controlled multi‐level inverter topology for multiple pole‐pair induction motor drive for minimising torque ripple

A multi-level inverter configuration for 4n pole induction motor drive by using conventional two-level inverters

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