Research on robust adaptive cooperative stabilisation control for doubly‐fed induction generator unit. Issue 4 (22nd January 2018)

• Record Type: Journal Article
• Authors: Wu, Zhongqiang; Li, Feng; Zhang, Wei; Du, Chunqi
• Is Part Of: IET generation, transmission & distribution. Volume 12:Issue 4(2018)
• Page Start: 997
• Page End: 1003
• Publication Date: 2018-01-22
• Subjects: asynchronous generators -- machine control -- robust control -- adaptive control -- cooperative systems -- wind power plants -- closed loop systems -- synchronisation -- feedback -- interference suppression -- H∞ control -- uncertain systems; robust adaptive cooperative stabilisation control -- doubly‐fed induction generator unit -- H∞ adaptive collaborative stabilisation problem -- DFIG units -- external disturbances -- parameter uncertainty -- Hamilton function -- closed‐loop global stability -- output synchronisation -- multimachine system -- dissipative Hamilton system -- pre‐feedback -- synchronous controller -- adaptive interference suppression -- output feedback -- nonlinear wind generator units; Electric power production -- Periodicals; Electric power transmission -- Periodicals; Electric power distribution -- Periodicals; 621.3105
• DOI: 10.1049/iet-gtd.2017.1080
• Languages: English
• ISSNs: 1751-8687

Abstract

Abstract : In this study, an H ∞ adaptive collaborative stabilisation problem of doubly‐fed induction generator (DFIG) units with both external disturbances and parameter uncertainty has been studied based on Hamilton function, and the closed‐loop global stability and output synchronisation of the multi‐machine system are realised. Firstly, the Hamilton model of DFIG is built, and expressed as dissipative Hamilton system by pre‐feedback. Then, external disturbances and parameter uncertainties are considered, and a synchronous controller, which includes output feedback and adaptive interference suppression is designed so that the wind generator units are kept running synchronously. The controller not only realises the adaptive stability control of the non‐linear wind generator units with parameter uncertainty but also has the ability to restrain the external disturbance. The effectiveness of the controller is tested by the simulation results of two wind generator units.