NDLI: Control and power transfer operation of WRIG-based WECS in a hybrid AC/DC microgrid

Content Provider	IET Digital Library
Author	Sowmmiya, Uthayakumar Govindarajan, Uma
Abstract	In this study, the control and power transfer operation of wound rotor induction generator (WRIG)-based wind energy conversion system (WECS) in a hybrid AC/DC microgrid (DCM), delivering power during islanded and utility-tied conditions are dealt. The system encompasses WRIG, rotor-side converter (RSC) and stator SC (SSC) connected back–back with DCM. AC loads, AC end of SSC, stator of WRIG and a switchable utility frames the AC microgrid. During islanded mode, stator voltage and frequency are regulated with proportional–integral (PI) controllers through RSC. During utility-tied mode, RSC is currently controlled to perform bidirectional slip power transfer. Load compensation is achieved by current-controlled SSC at all conditions. Instantaneous power theory is employed in the current control of RSC and SSC for generating reference currents. On the basis of wind/load conditions, all possible operational modes are formulated. The power transfer operation during occasional conditions such as shorted winding, over loading, low wind, machine stall and no load claims the merit of the setup. A supervisory control algorithm is developed for executing smooth power transfer. The dynamic operation is experimentally analysed to confirm the efficacious working of the WECS.
Starting Page	359
Ending Page	373
Page Count	15
ISSN	17521416
Volume Number	12
e-ISSN	17521424
Issue Number	Issue 3, Feb (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/12/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2017.0298
Journal	IET Renewable Power Generation
Publisher Date	2017-11-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Microgrid Asynchronous Generator Asynchronous Machine Bidirectional Slip Power Transfer Control of Electric Power System Control Operation Current Control Current-controlled SSC Distributed Power Generation Electric Current Control Frequency Control Frequency Regulation Hybrid AC-DC Microgrid Hybrid AC-DCM Instantaneous Power Theory Islanded Condition Islanded Mode Load Compensation Machine Control PI Control PI Controller Power System Control Power Transfer Operation Proportional–integral Controllers Reference Current Rotor-side Converter Rotors Stator SC Stators Supervisory Control Algorithm Switchable Utility Frames Utility-tied Condition Utility-tied Mode Voltage Control Voltage Regulation Wind Energy Conversion System Wind Power Wind Power Plant Wind-load Condition Wound Rotor Induction Generator WRIG-based WECS
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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