TY - JOUR
T1 - Resolution-level-controlled WM inverter for PMG-based wind energy conversion system
AU - Saleh, S. A.
AU - Ahshan, R.
N1 - Funding Information:
Manuscript received June 14, 2011; revised October 31, 2011; accepted December 14, 2011. Date of publication January 4, 2012; date of current version March 21, 2012. Paper 2011-ESC-305.R1, presented at the 2011 IEEE Industry Applications Society Annual Meeting, Orlando, FL, October 9–13, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Energy Systems Committee of the IEEE Industry Applications Society. This work was supported in part by a Strategic Grant from the Natural Sciences and Engineering Research Council of Canada.
PY - 2012/3
Y1 - 2012/3
N2 - 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.
AB - 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.
KW - DC-AC power conversion
KW - permanent-magnet generators (PMGs)
KW - proportional-integral (PI) control and digital signal processors
KW - switch-mode ac-dc converters
KW - wavelet transforms
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U2 - 10.1109/TIA.2012.2182750
DO - 10.1109/TIA.2012.2182750
M3 - Article
AN - SCOPUS:84859060421
SN - 0093-9994
VL - 48
SP - 750
EP - 763
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
IS - 2
M1 - 6122504
ER -