Resonant control system for low-voltage ride-through in wind energy conversion systems

Cardenas, Roberto and Diaz, Matias and Rojas, Felix and Clare, Jon C. and Wheeler, Patrick (2016) Resonant control system for low-voltage ride-through in wind energy conversion systems. IET Power Electronics, 9 (6). pp. 1297-1305. ISSN 1755-4543

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Abstract

Owing to the high penetration of electrical energy from wind energy conversion systems (WECSs), some countries are enforcing stringent grid codes to regulate low-voltage-ride-through (LVRT) operation of WECSs. This study presents a self-tuning resonant control (RC) system which can be used for LVRT control of the grid interface in the presence of symmetrical or asymmetrical faults. Only two RCs are required to fully control the four degrees of freedom of the converter output current. Sequence component separation is achieved using a new fast-convergence delayed signal cancellation method which is also discussed in this work. The mathematical analysis and design procedure of the control system are presented. Simulation and experimental results obtained from a 3 kW prototype are discussed in this study.

Item Type: Article
Additional Information: This paper is a postprint of a paper submitted to and accepted for publication in IET Power Electronics and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library
Keywords: Control systems; Degrees of freedom (mechanics); Resonance; Tuning; Wind power Electrical energy; Four-degrees-of-freedom; Low-voltage ride-through; Mathematical analysis; Sequence components; Signal cancellation; Wind energy conversion system; Wind-Energy conversion systems (Wecss) Energy conversion
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: https://doi.org/10.1049/iet-pel.2015.0488
Depositing User: Burns, Rebecca
Date Deposited: 30 Jun 2016 10:02
Last Modified: 19 Sep 2016 00:15
URI: http://eprints.nottingham.ac.uk/id/eprint/34524

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