Resolution-level-controlled WM inverter for PMG-based wind energy conversion system

S. A. Saleh, R. Ahshan

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

This paper presents the development, implementation, and performance testing of a permanent-magnet generator (PMG)-based wind energy conversion system (WECS) for grid-connected applications. The grid-connected operation is constructed using the new three-phase resolution-level-controlled wavelet-modulated inverter. The output of the wind generator is fed to a switch-mode ac-dc converter, where the dc voltage is controlled to ensure extracting power from the wind under variable wind speed conditions in order to meet the grid active and reactive power demands. The resolution-level control of the grid-side inverter is designed as a current controller for adjusting active and reactive powers delivered to the grid. The proposed WECS is implemented both in software and hardware for performance testing on a direct-drive 6-kW laboratory PMG operated with variable speed. Test results demonstrate that an accurate control of the dc voltage on the generator side ensures adjusting the generator speed to extract power at each wind speed in order to meet the demand active and reactive power delivery to the grid. Also, test results show significant abilities of the resolution-level controller to initiate fast and accurate adjustments in the active and reactive powers delivered to the grid in order to follow any changes in their demand values under variable wind speed.

Original languageEnglish
Article number6122504
Pages (from-to)750-763
Number of pages14
JournalIEEE Transactions on Industry Applications
Volume48
Issue number2
DOIs
Publication statusPublished - Mar 2012

Fingerprint

Energy conversion
Wind power
Permanent magnets
Reactive power
Controllers
Level control
Testing
Electric potential
Switches
Hardware

Keywords

  • DC-AC power conversion
  • permanent-magnet generators (PMGs)
  • proportional-integral (PI) control and digital signal processors
  • switch-mode ac-dc converters
  • wavelet transforms

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Resolution-level-controlled WM inverter for PMG-based wind energy conversion system. / Saleh, S. A.; Ahshan, R.

In: IEEE Transactions on Industry Applications, Vol. 48, No. 2, 6122504, 03.2012, p. 750-763.

Research output: Contribution to journalArticle

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