Revista Eletrônica de Potência (Brazilian Journal of Power Electronics)

Title: Sliding-mode Control For The Decoupled Power Control Of Doubly-fed Induction Generator

Keywords: Doubly-Fed Induction Generator, flux orientation, power control, sliding mode control, vector control

Abstract

This paper proposes a decoupled control of active and reactive power for doubly-fed induction generators (DFIG) bu using the rotor current control loop and sliding mode control (SMC). In order to decouple the active and reactive power generated, stator-fluxoriented vector control is applied. The sliding mode control strategy proposes is based on two sliding modes plus PI controllers whose main advantage is the easy implementation. Simulation and experimental results are presented to validate the proposed control scheme for a 2 kW DFIG during stator active and reactive power steps and rotor speed variation. During transient operation it is checked good dynamic response.

[1] G. Abad, J. López, M. Rodríguez, L. Marroyo, M. Rodríguez, and G. Iwanski, Doubly fed induction machine: Modeling and control for wind energy generation applications, John Wiley & Sons, 2011.
[2] J. A. Baroudi, V. Dinavahi, and A. M. Knight, A review of power converter topologies for wind generators, Renewable Energy, v. 32, p. 2369–2385, 2007. https://doi.org/10.1016/j.renene.2006.12.002.
[3] A. J. Netto, P. R. Barros, C. B. Jacobina, A. M. N. Lima, and E. R. C. da Silva, Indirect field-oriented control of an induction motor by using closed-loop identification, In Annual Meeting Industry Applications Conference – IAS, 2005.
[4] A. Tapia, G. Tapia, J. X. Ostolaza, and J. R. Saenz, Modeling and control of a wind turbine driven doubly fed induction generator, IEEE Transactions on Energy Conversion, v. 18, n. 2, p. 194–204, Jun. 2003. https://doi.org/10.1109/TEC.2003.811727.
[5] B. Shen and B.-T. Ooi, Novel sensorless decoupled pq control of doubly-fed induction generator(dfig) based on phase locking to gamma-delta frame, In Power Electronics Specialists Conference, 2005.
[6] B. H. Chowdhury and S. Chellapilla, Double-fed induction generation control for variable speed wind power generation, Electric Power System Research, 2006. https://doi.org/10.1016/j.epsr.2005.10.013.
[7] R. V. Jacomini, A. França, and E. Bim, Simulation and experimental studies on double-fed induction generator power control operating at subsynchronous operation speed, In Power Electronics and Drive Systems, 2009.
[8] F. K. A. Lima, A. Luna, P. Rodriguez, E. H. Watanabe, and F. Blaabjerg, Rotor voltage dynamics in the doubly fed induction generator during grid faults, IEEE Trans. on Power Electronics, v. 1, n. 1, p. 118–130, Jan. 2010. https://doi.org/10.1109/TPEL.2009.2025651.
[9] V. F. Mendes, C. V. de Sousa, S. R. Silva, B. C. Rabelo, and W. Hofmann, Modeling and ride-through control of doubly fed induction generators during symmetrical voltage sags, IEEE Transactions on Energy Conversion, v. 26, n. 4, p. 1161–1171, Dec. 2011. https://doi.org/10.1109/TEC.2011.2163718.
[10] A. J. Sguarezi Filho, M. E. de oliveira Filho, and E. Ruppert, A predictive power control for wind energy, IEEE Transactions on Sustainable Energy, v. 2, n. 2, p. 97–105, 2011. https://doi.org/10.1109/TSTE.2010.2088408.
[11] C. Edwards and S. K. Spurgeon, “Sliding Mode Control: Theory And Applications”, Taylor & Francis systems and control book series, 1998.
[12] W. Naouar, E. Monmasson, A. Naassani, and I. Slama-Belkhodja, Fpga-based dynamic reconfiguration of sliding mode current controllers for synchronous machines, IEEE Transactions on Industrial Informatics, v. 9, n. 3, p. 1262–1271, 2013. https://doi.org/10.1109/TII.2012.2220974.
[13] M. Rashid, “Power electronics circuits, devices and aplications”, Pretince Hall, 2004.
[14] C. Lascu, I. Boldea, and F. Blaabjerg, Direct torque control of sensorless induction motor drives: a sliding-mode approach, IEEE Transactions on Industry Applications, v. 25, n. 2, p. 582–590, march-april 2004. https://doi.org/10.1109/TIA.2004.824441.
[15] S. Z. Chen, N. C. Cheung, K. C.Wong, and J. Wu, Integral variable structure direct torque control of doubly fed induction generator, IET Renewable Power Generation, v. 5, n. 1, p. 18–25, Jan. 2011. https://doi.org/10.1049/iet-rpg.2009.0021.
[16] J. Hu, H. Nian, B. Hu, Y. He, and Z.Q. Zhu, Direct active and reactive power regulation of dfig using sliding-mode control approach, IEEE Transactions on Energy Conversion, v. 25, n. 4, p. 1028–1039, Dec. 2010. https://doi.org/10.1109/TEC.2010.2048754.
[17] H. G. Jeong, W. S. Kim, K. B. Lee, B. C. Jeong, and S. H. Song, A sliding-mode approach to control the active and reactive powers for a dfig in wind turbines, In Power Electronics Specialists Conference, 2008.
[18] X. Zheng, W. Li, and W. Wang, High-order sliding mode controller for no-load cutting-in control in dfig wind power system, In 3rd International Symposium on Systems and Control in Aeronautics and Astronautics (ISSCAA), 2010.
[19] J. P. da Costa, H. Pinheiro, T. Degner, and G. Arnold, Robust controller for dfigs of grid-connected wind turbines, IEEE Transactions on Industrial Eletronics, v. 58, n. 9, p. 4023–4038, Sep 2011. https://doi.org/10.1109/TIE.2010.2098630.
[20] W. Leonhard, “Control of Electrical Drives”, Springer-Verlag, 1985.
[21] M. V. Lazarini and E. Ruppert Filho, Induction motor control didactic set-up using sensorless and sliding mode dtc strategy, Eletrônica de Potência, v. 13, n. 4, p. 291–299, 2008. http://dx.doi.org/10.18618/REP.2008.4.291299.
[22] L-G Shiau and J.-L. Lin, Stability of sliding-mode current control for high performance induction motor position drives, IEE Proceedings – Electric Power Applications, v. 148, n. 1, p. 69–75, 2001. https://doi.org/10.1049/ip-epa:20010035.
[23] J. Hun and B. Wu, New integration algorithms for estimating motor flux over wide speed range, IEEE Trans. on Power Electronics, v. 13, n. 5, p. 969–977, September 1998. https://doi.org/10.1109/TPEL.2002.805579.
[24] A. J. Sguarezi Filho and E. Ruppert Filho, The complex controller for three-phase induction motor direct torque control, Controle e automação, v. 20, n. 2, p. 256–262, 2009.