• International Journal of Technology (IJTech)
  • Vol 6, No 6 (2015)

An Analysis of Voltage Space Vectors’ Utilization of Various PWM Schemes in Dual-inverter Fed Five-phase Open-end Winding Motor Drives

An Analysis of Voltage Space Vectors’ Utilization of Various PWM Schemes in Dual-inverter Fed Five-phase Open-end Winding Motor Drives

Title: An Analysis of Voltage Space Vectors’ Utilization of Various PWM Schemes in Dual-inverter Fed Five-phase Open-end Winding Motor Drives
I Nyoman Wahyu Satiawan, Ida Bagus Fery Citarsa, I Ketut Wiryajati, I Kade Wiratama

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Published at : 30 Dec 2015
Volume : IJtech Vol 6, No 6 (2015)
DOI : https://doi.org/10.14716/ijtech.v6i6.1396

Cite this article as:

Satiawan, I.N.W., Citarsa, I.B.F., Wiryajati, I.K., Wiratama, I.K., 2015. An Analysis of Voltage Space Vectors’ Utilization of Various PWM Schemes in Dual-inverter Fed Five-phase Open-end Winding Motor Drives. International Journal of Technology. Volume 6(6), pp. 1031-1041



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I Nyoman Wahyu Satiawan Department of Electrical Engineering, Faculty of Engineering University of Mataram, Mataram 83121, Indonesia
Ida Bagus Fery Citarsa Department of Electrical Engineering, Faculty of Engineering University of Mataram, Mataram 83121, Indonesia
I Ketut Wiryajati Department of Electrical Engineering, Faculty of Engineering University of Mataram, Mataram 83121, Indonesia
I Kade Wiratama Department of Mechanical Engineering, Faculty of Engineering University of Mataram, Mataram 83121, Indonesia
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Abstract
An Analysis of Voltage Space Vectors’ Utilization of Various PWM Schemes in Dual-inverter Fed Five-phase Open-end Winding Motor Drives

This paper analyzes voltage space vectors’ utilization of various Pulse Width Modulation (PWM) schemes in dual-inverter fed five-phase open-end winding motor drives with equal DC-link voltage. The applied voltage space vectors in three PWM schemes were examined. These three schemes were: the Equal Reference Sharing (ERS) PWM, the Unequal Reference Sharing (URS) PWM, and the Decomposition PWM. The results of these examinations show that the ERS scheme utilizes only 21 of the 211 available voltage vectors, and that the URS scheme utilizes more voltage vectors than the ERS scheme. The number of vectors applied in the URS scheme varies according to the modulation index and angular position of the voltage references. Consequently, the URS scheme produces better voltage output quality than the ERS scheme. Of the three schemes, the Decomposition PWM applies the most effective voltage vectors and produces the best voltage output quality, which is indicated by the lowest value of Total Harmonics Distortion (THD). This paper also proposes a new switching strategy that inherently improves the power sharing capability of the converter, thus avoiding the increase in the DC-link voltage of inverter that operates in PWM mode.

Decomposition PWM, Dual-inverter fed five-phase motor, Equal Reference Sharing (ERS), Unequal Reference Sharing (URS)

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