Resonant control system for low‐voltage ride‐through in wind energy conversion systems. Issue 6 (1st May 2016)

• Record Type: Journal Article
• Authors: Cárdenas, Roberto; Díaz, Matías; Rojas, Félix; Clare, Jon; Wheeler, Pat
• Is Part Of: IET power electronics. Volume 9:Issue 6(2016)
• Page Start: 1297
• Page End: 1305
• Publication Date: 2016-05-01
• Subjects: wind power plants -- voltage control -- power generation control -- power grids -- self‐adjusting systems -- adaptive control -- power generation faults -- electric current control -- mathematical analysis -- source separation; resonant control system -- wind energy conversion systems -- electrical energy penetration -- WECSs -- grid codes -- low‐voltage‐ride‐through regulation -- self‐tuning resonant control system -- RC system -- LVRT control -- grid interface -- asymmetrical faults -- symmetrical faults -- degrees of freedom -- converter output current control -- sequence component separation -- fast‐convergence delayed signal cancellation method -- mathematical analysis -- design procedure -- power 3 kW; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2015.0488
• Languages: English
• ISSNs: 1755-4535

Abstract

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.