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Efficient Controlling of Three-Phase AC-DC-AC Dual Converter Systems with Vector Control

Research Area: Volume 7 Issue 1 Year: 2019
Type of Publication: Article Keywords: AC-DC-AC converter, Pulse width Modulation PWM, Control Vector
Authors:
  • Garima Baghel
  • Mithlesh Gautam
  • Meha Shrivastava
  • Nilesh Diwakar
  • Rajeev Arya
Journal: IJNIST Volume: 7
Number: 1 Pages: 89-95
Month: Jan-June
ISSN: 2321-0468
Abstract:
In this work the well-known voltage and current DC link converter systems, used to implement an AC/AC converter, are initially presented. Using this knowledge and their space vector modulation methods we show their connection to the family of Pwm Converters and then finally the connection to direct Pwm Converters. A brief discussion of extended Pwm Converter circuits is given and a new unidirectional three-level Pwm Converter topology is proposed. This clearly shows the topological connections of the converter circuits that directly lead to an adaptability of the modulation methods. These allow the reader who is familiar with space vector modulation of voltage and current DC-link converters to simply incorporate and identify new modulation methods. A comparison of the converter concepts, with respect to their fundamental, topology-related characteristics, complexity, control and efficiency, then follows. Furthermore, by taking the example of a converter that covers a typical operation region in the torque-speed plane (incl. holding torque at standstill), the necessary silicon area of the power semiconductors is calculated for a maximum junction temperature. This work concludes with proposals for subjects of further research in the area of PWM Converters.
Full text: IJNIST-7109.pdf

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