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

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

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

9 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)
PublisherIEEE
Pages139-144
Number of pages6
ISBN (Electronic)9781509049639
ISBN (Print)9781509049646
DOIs
Publication statusPublished - 1 May 2017
Event2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG) - Congress Palace, Cadiz, Spain
Duration: 4 Apr 20176 Apr 2017

Publication series

Name
ISSN (Electronic)2166-9546

Conference

Conference2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)
Abbreviated titleCPE-POWERENG
Country/TerritorySpain
CityCadiz
Period4/04/176/04/17

Keywords

  • multiphase machine
  • induction machine
  • nine-switch converter
  • wind energy
  • dc-link voltage balancing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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