Abstract
This paper deals with maximum power point tracking control (MPPT) of wind turbines systems based on double fed induction generator (DFIG). To minimize the variable and random character of wind speed impact on the wind turbine system, a maximum power point tracking algorithm based on sliding mode control is proposed. The MPPT algorithm is designed with sliding-mode control theory, this solution shows good robustness with respect to parameter variations, measurement errors and robustness with respect to external disturbances and unmodeled dynamics (DFIG-WT). A comparative study is elaborated using PI, first and second order sliding mode controllers. The simulation results confirm the effectiveness of the proposed approach either in transient and steady state.
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Abbreviations
- p:
-
Number of pole pairs
- R:
-
Blade radius
- G:
-
Gear ratio
- \(T_{e} ,\,T_{WT} ,\,T_{G}\) :
-
Electromagnetic, wind turbine and output gearbox torque (N m)
- \(P_{s} ,\,P_{r}\) :
-
Stator and rotor active power (W)
- \(P{}_{WT}\) :
-
Wind turbine power (W)
- \(v\) :
-
Wind speed (m s−1)
- \(R_{s} ,\,R_{r}\) :
-
Stator and rotor resistor \((\Omega )\)
- \(L_{s} ,\,L_{r}\) :
-
Stator and rotor self induction (H)
- \(M\) :
-
Mutual magnetizing induction (H)
- \(\,J_{g} ,\,J_{WT} ,\,J\) :
-
Generator, wind turbine, total inertia moment (kg m2)
- \(f_{g} ,\,f_{WT} ,\,f\) :
-
Generator, wind turbine, total friction coefficient (N m s−1)
- \(P\) :
-
Active load power (W)
- \(Q\) :
-
Reactive load power (VAR)
- \(Cp,\,\,Cp_{\hbox{max} }\) :
-
Power coefficient and its maximum
- \(g\) :
-
Slip
- \(u_{s} ,\,u_{sd} ,\,u_{sq} \,\) :
-
Stator voltage and its direct and quadrate components (V)
- \(i_{r} ,\,i_{rd} ,\,i_{rq} \,\) :
-
Rotor current and its direct and quadrate components (A)
- \(\Omega _{WT} ,\,\Omega _{g} ,\,\Omega\) :
-
Wind turbine, generator and rotor mechanical angular speed (rd s−1)
- \(\omega {}_{WT}\) :
-
Angular rotor frequency (rd s−1)
- \(\omega_{s} ,\,\omega_{r}\) :
-
Stator and rotor current frequency (rd s−1)
- \(\rho\) :
-
Air density (kg m−3)
- \(\lambda ,\,\,\lambda_{opt}\) :
-
Speed ratio and its tip value
- VSCF:
-
Variable speed constant frequency
- WECS:
-
Wind energy conversion system
- DFIG:
-
Doubly fed induction generator
- MPPT:
-
Maximum power point tracking
- PIC:
-
Proportional integrator controller
- SMC:
-
Sliding mode controller
- FLC:
-
Fuzzy logic controller
- SOSMC:
-
Second order sliding mode controller
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Slimane, W., Benchouia, M.T., Golea, A. et al. Second order sliding mode maximum power point tracking of wind turbine systems based on double fed induction generator. Int J Syst Assur Eng Manag 11, 716–727 (2020). https://doi.org/10.1007/s13198-020-00987-8
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DOI: https://doi.org/10.1007/s13198-020-00987-8