Design considerations for inertia emulating controllers used in variable speed wind turbines

Wickramasinghe, A, Meegahapola, L, Agalgaonkar, A and Perera, S 2014, 'Design considerations for inertia emulating controllers used in variable speed wind turbines', in D. Houseman (ed.) Proceedings of 2014 IEEE Power & Energy Society General Meeting, Washington DC, United States, 27-31 July 2014, pp. 1-5.


Document type: Conference Paper
Collection: Conference Papers

Title Design considerations for inertia emulating controllers used in variable speed wind turbines
Author(s) Wickramasinghe, A
Meegahapola, L
Agalgaonkar, A
Perera, S
Year 2014
Conference name 2014 IEEE Power & Energy Society General Meeting
Conference location Washington DC, United States
Conference dates 27-31 July 2014
Proceedings title Proceedings of 2014 IEEE Power & Energy Society General Meeting
Editor(s) D. Houseman
Publisher IEEE
Place of publication United States
Start page 1
End page 5
Total pages 5
Abstract High penetration of wind power into power systems is likely to cause difficulties in maintaining system frequency, as in contrast to conventional synchronous generators, variable speed wind turbines (VSWTs) do not directly contribute to system inertia. To overcome this issue, it has been proposed to emulate inertia by VSWTs by extracting the kinetic energy of the turbine rotor. However, proper designing of the inertia emulating controller is essential for the optimal use of the energy potential and safe operation of the wind turbine. Some of the common controller concepts used for inertia emulation have inherent weaknesses, limiting the frequency support provided by VSWTs. This paper highlights these design considerations by simulating the inertial responses provided by a typical controller. To overcome the identified issues, a new controller design is proposed. Its capability to provide an improved frequency response while reducing the adverse impacts on the turbine rotor is demonstrated.
Subjects Electrical and Electronic Engineering not elsewhere classified
Interdisciplinary Engineering not elsewhere classified
Keyword(s) controller design
DFIG
emulated inertia
frequency regulation
variable speed wind turbines
Copyright notice © 2014 IEEE
ISBN 9781479964154
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