Sliding mode approach to torque and pitch control for an wind energy system using FPGA

• Autorzy: Subudhi B. , Ogeti P. S.
• Języki publikacji: EN

Abstrakty

EN

Wind energy, being a fluctuating resource, requires a tight control management to ensure stability when integrated with the grid system. This has triggered interest towards developing advanced controllers. Hence this paper presents the study of a variable speed wind energy conversion system that uses a Double Fed Induction Generator (DFIG). Above rated wind speed, pitch control has been applied and below the rated speed torque control has been adopted. Generator torque control is able to reduce the effects of the pitch actuator limitations. Sliding mode control is applied for torque and pitch control in WECS and it has been implemented in MATLAB SIMULINK and FPGA to achieve control of active and reactive power exchange between the stator of the DFIG and the grid. Performance parameters like pitch angle, active, reactive power, turbine speed, and DC voltage has been compared by using SMC, Hill Climbing (HC) Algorithm and Perturb and Observe (P&O) Algorithm and performance for these three methods has been simulated and implemented in FPGA. Total Harmonic Distortion for all the performance parameters has been reported. Hardware implementation of developed algorithm was accomplished with the help of Xilinx system generator and Xilinx Tool Kit.

Słowa kluczowe

EN

wind-energy conversion systems (WECSs); sliding mode control (SMC); torque; pitch control; hill climbing (HC); perturb and observe (P&O); FPGA

• Wydawca: Polish Academy of Sciences, Committee of Automatic Control and Robotics
• Czasopismo: Archives of Control Sciences
• Rocznik: 2012
• Tom: Vol. 22, no. 3
• Strony: 285--302
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wzory

Twórcy

autor

Subudhi B.

autor

Ogeti P. S.

• Department of Electrical Engineering, National Institute of Technology, Rourkela-769008, Odisha, India,

Bibliografia

• [1] L. Soder, L. Hofmann, A. Orths, H. Holttinen, Y. Wan and A. Tuohy: Experience from wind integration in some high penetration areas. IEEE Trans.Energy Convers., 22(1), (2007), 4-12.
• [2] F. Lescher, J. Y. Zhao and P. Borne: Robust gain scheduling controller for pitch regulated variable speed wind turbine. Stud. Inform. Control, 14(12), (2005), 299-315.
• [3] F. Bianchi, R. Mantz and C. Christiansen: Gain scheduling control of variable speed wind energy conversion systems using quasi-PV models. Control Eng.Practice, 13(2), (2005), 247-255.
• [4] D. Leith and W. Leithead: Appropriate realisation of gain-scheduled controllers with application to wind turbine regulation. Int. J. Control, 65(2), (2005, 223-248.
• [5] K. Stol, B. Rigney and M. Balas: Disturbance accommodating control of a variable-speed turbine using a symbolic dynamics structural model. Proc. 2000ASME Wind Energy Symp., Reno, Nevada, (2000), 84-90.
• [6] D. H. Battista, R. J. Mantz and C.F. Christiansen: Dynamical sliding mode power control of wind driven induction generators. IEEE Trans. on Energy Conversion, 5(4), (2000), 451-457.
• [7] E. B. Muhando, T. Senjyu, A. Uehara, T. Funabashi And C-H. Kim: Gainscheduled H∞ control for WECS via LMI techniques and parametrically dependent feedback. Part II: Controller design and implementation. IEEE Trans. on IndustrialElectronics, 58(1), (2011), 57-65.
• [8] X.-Y. Zhang, J. Wu and J.-M. Yang: H∞ robust control of constant power output for the wind energy conversion system above rated wind. IET Control Theoryand Application, 25(2), (2008), 321-324.
• [9] B. Beltran, T. Ahmed-Ali and M.E.H. Benbouzid: High-order sliding mode control of variable-speed wind turbines. IEEE Trans. on Industrial Electronics, 56(9), (2009), 3314-3321.