Open AccessPerformance improvement of type 4 wind turbine synchronous generator using fractional‐order PI (FOPI) and PI controllers designed by the analytical approach
Author(s) -
Mahvash Hossein,
Taher Seyed A.,
Shahidehpour Mohammad
Publication year - 2020
Publication title -
international transactions on electrical energy systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 42
ISSN - 2050-7038
DOI - 10.1002/2050-7038.12403
Subject(s) - control theory (sociology) , robustness (evolution) , turbine , grid , wind power , permanent magnet synchronous generator , generator (circuit theory) , computer science , power (physics) , engineering , mathematics , control (management) , electrical engineering , voltage , physics , mechanical engineering , geometry , quantum mechanics , artificial intelligence , biochemistry , chemistry , gene
Summary Full‐converter synchronous generators driven by wind turbines as a modern technology have widely been used in wind power plants. In this case, the grid‐side converter (GSC) connected to the utility grids or the local load in grid‐connected and standalone operation modes performs the main task in controlling generator performance. In this paper, an analytical approach based on the satisfaction of the frequency specifications was proposed for designing the PI and the fractional‐order PI (FOPI) controllers to the internal and external control loops in the GSC of synchronous generator with wind turbine for two operation modes: weak grid‐connected and standalone. Evaluations indicated the superior performances of the designed FOPI controllers in comparison with the conventional PI ones in enhancing the generator performance in the normal and faulty conditions at various wind speeds operation modes. Furthermore, considering the uncertainties in the parameters of the weak‐connected grid verified the robustness of the proposed FOPI/PI controllers.