Second‐order sliding‐mode controller design and tuning for grid synchronisation and power control of a wind turbine‐driven doubly fed induction generator. Issue 5 (1st September 2013)

• Record Type: Journal Article
• Authors: Susperregui, Ana; Martinez, Miren Itsaso; Tapia, Gerardo; Vechiu, Ionel
• Is Part Of: IET renewable power generation. Volume 7:Issue 5(2013)
• Page Start: 540
• Page End: 551
• Publication Date: 2013-09-01
• Subjects: asynchronous generators -- control system synthesis -- machine control -- power control -- power convertors -- power grids -- rotors -- variable structure systems -- wind turbines; wind turbine‐driven doubly fed induction generator -- DFIG test bench -- 2‐SMC scheme -- grid synchronisation -- power control -- rotor‐side converter -- fixed switching frequency -- tuning equations -- bumpless transfer -- second‐order sliding‐mode controller design -- second‐order sliding‐mode controller tuning -- power 7 kW; Renewable energy sources -- Periodicals; 333.79405
• DOI: 10.1049/iet-rpg.2012.0026
• Languages: English
• ISSNs: 1752-1416

Abstract

Abstract : This study presents a second‐order sliding‐mode control (2‐SMC) scheme for a wind turbine‐driven doubly fed induction generator (DFIG). The tasks of grid synchronisation and power control are undertaken by two different algorithms, designed to command the rotor‐side converter at a fixed switching frequency. Effective tuning equations for the parameters of both controllers are derived. A procedure is also provided that guarantees bumpless transfer between the two controllers at the instant of connecting the DFIG to the grid. The resulting 2‐SMC scheme is experimentally validated on a laboratory‐scale 7 kW DFIG test bench. Experimental results evidence both the high dynamic performance and the superior robustness achieved with the proposed control scheme.