Abstract
The doubly fed induction generator (DFIG) wind turbine is the most used in wind generation, and there are different control strategies for this type of machine. The correct choice of the proportional-integral (PI) controller parameters values determine the stability and performance of the DFIG when subjected to a transient disturbances. This research considers the DFIG with active power and voltage (PV) control loops, and seeks to adjust the PI controllers parameters to obtain a damped behavior and small peaks in the electrical and mechanical variables when the wind turbine is subjected to electrical faults. For the tuning, a particle swarm optimization (PSO) algorithm that minimizes an objective function (OF) is proposed, derived from the weighting of three objectives related to the dynamic performance of the wind turbine during the fault. In addition, for comparative purposes another tuning is performed via the “trial and error” method (T&E). The results of computer simulations showed that the PSO is an effective tool for this nonlinear and continuous problem, achieving an adequate tuning of the PI controller parameters, in addition to showing the difficulties of the “trial and error” method, as it is not systematic. The proposed PSO method provided a tuning improving the performance of the penalized quantities, damping the electrical and mechanical oscillations, with low peaks in the active power, terminal voltage remained within the pre-established limits, and preserving performance for different fault intensities and shaft stiffness variations.
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Abbreviations
- PV:
-
Active power and voltage
- DC:
-
Direct current
- DFIG:
-
Doubly fed induction generator
- GC:
-
Grid code
- Ti:
-
Integral time (parameter)
- IAE:
-
Integral absolute error
- LVRT:
-
Low voltage ride through
- MPPT:
-
Maximum power point tracking
- OF:
-
Objective function
- PSO:
-
Particle swarm optimization
- \(C_p\) :
-
Performance coefficient
- K:
-
Proportional (parameter)
- PI:
-
Proportional-integral
- RSC:
-
Rotor side converter
- \(K_s\) :
-
Torsional stiffness coefficient
- T&E:
-
Trial and error
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The authors would like to thank São Carlos Engineering School, University of São Paulo (USP), as well as, Western Parana State University (UNIOESTE) for supporting this research.
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This work is an extended version with new analyses and results of article Aguilar et al. (2020a), presented at “VIII Simpósio Brasileiro de Sistemas Elétricos” (SBSE 2020).
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The authors would like to thank São Carlos Engineering School, University of São Paulo (USP), Western Parana State University (UNIOESTE) for the financial support.
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Aguilar, M.E.B., Coury, D.V., Machado, F.R. et al. Tuning of DFIG Wind Turbine Controllers with Voltage Regulation Subjected to Electrical Faults Using a PSO Algorithm. J Control Autom Electr Syst 32, 1417–1428 (2021). https://doi.org/10.1007/s40313-021-00779-w
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DOI: https://doi.org/10.1007/s40313-021-00779-w