Title :
A transformerless generator-converter concept making feasible a 100 kV low weight offshore wind turbine Part II - The converter
Author :
Gjerde, Sverre S. ; Olsen, Paal Keim ; Undeland, Tore M.
Author_Institution :
Dept. of Electr. Power Eng., Norwegian Univ. of Sci. & Technol., Trondheim, Norway
Abstract :
A transformerless wind power generator concept with the potential to achieve 100 kV DC output is introduced in this work. The work is presented in two papers. Part I: The Generator, describes the electrical machine properties of the special, 10 MW generator. This part, Part II, presents a modular AC/DC-converter system suitable for this wind turbine drive train solution. A conceptual description of the system is given and the synthesis of the control system is presented. The control system robustness against parameter- and operating point variations is studied through frequency domain analysis. The theoretical studies are supported by simulations of the full system in EMTDC/PSCAD. The results from both the analysis and simulations show good performance for the wind turbine system.
Keywords :
AC-DC power convertors; control system synthesis; frequency-domain analysis; robust control; wind power plants; wind turbines; EMTDC; PSCAD; control system robustness; control system synthesis; electrical machine; frequency domain analysis; modular AC-DC converter; offshore wind turbine drive train; power 10 MW; transformerless wind power generator concept; voltage 100 kV; Capacitors; Control systems; Generators; Robustness; Stability analysis; Stators; Wind turbines; AC-DC power converters; HVDC transmission; High-voltage techniques; wind power generation;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
DOI :
10.1109/ECCE.2012.6342815
