Damping torque analysis of virtual inertia control for DFIG-based wind turbines

C. Lv, W. Du, T. Littler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)
255 Downloads (Pure)

Abstract

The increasing penetration of large-scale wind generation in power systems will challenge the power system inertia due to the reason that the converter based variable speed wind turbines have no contribution to the system inertia. Traditionally, a doubly fed induction generator (DFIG)-based wind power plant naturally does not provide frequency response because of the decoupling between the output power and the frequency. Moreover, DFIGs also lack power reserve margin because of the maxi mum power point tracking (MPPT) operation. In this paper, a virtual inertial control strategy of the DFIG based wind turbines called supplementary control loop for inertial response is investigated. When the system frequency is changing severely, the out put power of DFIG should respond to it rapidly through the virtual inertial controller at the same time. The rotor speeds of wind turbines can also be adjusted into this procedure. The inertial control methods proposed in this paper can supply controllable virtual inertia of DFIGs to the power system so that the system frequency stability can be strengthened through inertial control of wind turbines on the basis of damping torque analysis.
Original languageEnglish
Title of host publication5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT 2015)
Publisher IEEE
Number of pages6
ISBN (Electronic)978-1-4673-7106-3
ISBN (Print)978-1-4673-7105-6
DOIs
Publication statusPublished - 29 Nov 2015
Event5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT) - International Academic Exchange Centre of Changsha University of Science and Technology, Changsha, China
Duration: 26 Nov 201529 Nov 2015
Conference number: 35958
http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=35958

Conference

Conference5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)
Abbreviated titleDRPT 2015
CountryChina
CityChangsha
Period26/11/201529/11/2015
Internet address

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