A new dual series-connected Nine-Switch Converter topology for a twelve-phase induction machine wind energy system

Sherif M. Dabour, Ayman Abdel-Khalik, Shehab Ahmed, Ahmed M. Massoud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper introduces a new transformerless converter topology for Multiphase-Based Wind Energy Conversion Systems (WECSs). In this topology, a twelve-phase induction generator is integrated to the grid using dual Nine-Switch Converters (NSCs) connected in series forming a high voltage cascaded dc-link. For this generator phase number, this topology reduces the total number of semiconductor devices in the machine side converter by 25% than conventional topologies, where four three-phase two-level voltage source converters are typically needed. Moreover, it offers a high ac-dc boosting capability, which facilities a transformerless system operation. The twelve-phase induction generator can be regarded as dual symmetrical six-phase windings with a spatial displacement of 30°. Therefore, each NSC controls each six-phase winding set. The dc-link midpoint balancing is achieved based on controlling the (x-y) current components of the two winding groups. The proposed topology and its control system are analyzed and simulated under different operating cases using MATLAB/SIMULINK.

Original languageEnglish
Title of host publication2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages139-144
Number of pages6
ISBN (Electronic)9781509049639
DOIs
Publication statusPublished - 28 Apr 2017
Event11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017 - Cadiz, Spain
Duration: 4 Apr 20176 Apr 2017

Other

Other11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017
CountrySpain
CityCadiz
Period4/4/176/4/17

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Keywords

  • Dc-link voltage balancing
  • Induction machine
  • Multiphase machine
  • Nine-switch converter
  • Wind energy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

Cite this

Dabour, S. M., Abdel-Khalik, A., Ahmed, S., & Massoud, A. M. (2017). A new dual series-connected Nine-Switch Converter topology for a twelve-phase induction machine wind energy system. In 2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2017 (pp. 139-144). [7915159] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CPE.2017.7915159