Efficient Low-Voltage Ride-Through Nonlinear Backstepping Control Strategy for PMSG-Based Wind Turbine During the Grid Faults

Document Type: Research paper

Authors

1 Department of Electrical Engineering, Faculty of Engineering, Abhar Branch Islamic Azad University, Abhar, Iran

2 amir kabir university

3 Department of Electrical Engineering, Amirkabir University of Technology, Tehran 15875-4413, Iran

Abstract

This paper presents a new nonlinear backstepping controller for a direct-driven permanent magnet synchronous generator-based wind turbine, which is connected to the power system via back-to-back converters. The proposed controller deals with maximum power point tracking (MPPT) in normal condition and enhances the low-voltage ride-through (LVRT) capability in fault conditions. In this method, to improve LVRT capability, machine-side converter controls dc-link voltage and MPPT is performed by grid side converter. Hence, PMSG output power is reduced very fast and dc-link voltage variation is reduced.  Due to nonlinear relationship between dc-link voltage and controller input, nonlinear backstepping controller has good performances. By applying the proposed controller, dc-link overvoltage is significantly decreased. The proposed controller has good performance in comparison with Proportional-Integral (PI) controller and Sliding Mode Controller (SMC). In asymmetrical faults, to decrease grid side active power oscillations, the nonlinear backstepping dual-current controller is designed for positive- and negative- sequence components. The simulation results confirm that the proposed controller is efficient in different conditions.

Keywords

Main Subjects


[1]    A. Hatefi Einaddin, A. Sadeghi Yazdankhah and R. Kazemzadeh, “Power management in a utility connected micro-grid with multiple renewable energy sources,” J. Oper. Autom. Power Eng., vol. 5, no. 1, pp. 1-9, June 2017.

[2]    H. Khorramdel, B. Khorramdel, M. Tayebi Khorrami and H. Rastegar, “A multi-objective economic load dispatch considering accessibility of wind power with here-and-now approach,” J. Oper. Autom. Power Eng., vol. 2, no. 1, pp. 60-73, 2014.

[3]    EWEA, “EU Energy Policy to 2050 – Achieving 80-95% emissions reductions.” http://www.ewea.org/publication-s/reports/eu-energy-policy-to-2050/.

[4]    A. R. Nafar Sefiddashti and A. Elahi, “Low voltage ride through enhancement based on improved direct power control of dfig under unbalanced and harmonically distorted grid voltage,” J. Oper. Autom. Power Eng., vol. 4, no. 1, pp. 16-28, 2016.

[5]    M. Nasiri, J. Milimonfared and S. H. Fathi, “A review of low-voltage ride-through enhancement methods for permanent magnet synchronous generator based wind turbines,” Renew Sustain. Energy Rev., vol. 47, pp. 399-415, July 2015.

[6]    M. Nasiri, “A robust controller for permanent magnet synchronous generator based wind turbine in fault condition on the grid,” Ph.D. dissertation, Dept. Elect. Eng., Amirkabir Univ. of Technology, Tehran, Iran, April 2015.

[7]    T. H. Nguyen, D. C. Lee, “Advanced fault ride-through technique for PMSG wind turbine systems using line-side converter as STATCOM,” IEEE Trans. Ind. Electron., vol. 60, no. 7, pp. 2842-2850, 2013.

[8]    Zh. Zhou, F. Scuiller, J. F. Charpentier, M. E. H. Benbouzid, and T. Tang, “Power smoothing control in a grid-connected marine current turbine system for compensating swell effect,” IEEE Trans. Sustain. Energy, vol. 4, no. 3, pp. 816-826, Mar. 2013.

[9]    R. Sarrias-Mena, L. M. Fernández-Ramírez, C. A. García-Vázquez, F. Jurado, “Improving grid integration of wind turbines by using secondary batteries,” Renew Sustain. Energy Rev., vol. 34, pp. 194-207, 2014.

[10]  S. M. Muyeen, R. Takahashi, T. Murata, J. Tamura, “A variable speed wind turbine control strategy to meet wind farm grid code requirements,” IEEE Trans. Power Syst., vol. 25, no. 1, pp. 331-340, 2010.

[11]  S. M. Muyeen, “A combined approach of using an SDBR and a STATCOM to enhance the stability of wind farm,” IEEE Syst. J., pp. 922-932, 2015.

[12]  P. Kumar, N. Kumar, A. Akella, “A simulation based case study for control of DSTATCOM,” ISA Trans., vol. 53, pp.767-775, 2014.

[13]  C. Wessels, F. Gebhardt, F. W. Fuchs, “Fault ride-through of DFIG wind turbine using a dynamic voltage restorer during symmetrical and asymmetrical grid faults,” IEEE Trans. Power Electron., vol. 26, no. 3, pp. 807-815, 2011.

[14]  A. Y. Goharrizi, S. H. Hosseini, M. Sabahi, G. B. Gharehpetian, “Three-phase HFL-DVR with independently controlled phases,” IEEE Trans. Power Electron., vol. 27, no. 4, pp. 1706-1718, April 2012.

[15]  A. D. Hansen, G. Michalke, “Modelling and control of variable-speed multi-pole permanent magnet synchronous generator wind turbine,” Wind Energy, vol. 11, pp. 537-554, 2008.

[16]  A. D. Hansen, G. Michalke, “Multi-pole permanent magnet synchronous generator wind turbines’ grid support capability in uninterrupted operation during grid faults,” IET Renew. Power Gener., vol. 3, no. 3, pp. 333-348, 2009.

[17]  J. Yao, L. Guo, T. Zhou, D. Xu, R. Liu, “Capacity configuration and coordinated operation of a hybrid wind farm with FSIG-based and PMSG-based wind farms during grid faults,” IEEE Trans. Energy Convers., vol. 32, Issue. 3, pp. 1188 - 1199, Sept. 2017.

[18]  H. M. Yassin, H. H. Hanafy, M.M. Hallouda, “Low voltage ride-through technique for pmsg wind turbine systems using interval type-2 fuzzy logic control,” Proce. IEEE Int. Ind. Technol., pp. 1065-1070, 17-19 March 2015.

[19]  K. H. Kim, Y. C. Jeung, D. C. Lee, H. G. Kim, “LVRT scheme of PMSG wind power systems based on feedback linearization,” IEEE Trans. Power Electron., vol. 27, no. 5, pp. 2376-2384, May 2012.

[20]  D. Jeong, C. Kim, Y. Gui, C.C. Chung, “Sliding mode control for LVRT of a PMSG wind turbine using stored energy in rotor inertia,” Proc. Power Energy Soc. Gen. Meeting , 17-21 July 2016.

[21]  M. Nasiri, J. Milimonfared, S. H. Fathi, “Robust control of pmsg-based wind turbine under grid fault conditions,” Indian J. Sci. Technol., vol. 8, no. 13, July 2015.

[22]  M. Karabacak, H. I. Eskikurt, “Design, modelling and simulation of a new nonlinear and full adaptive backstepping speed tracking controller for uncertain PMSM,” Appl. Math Model, vol. 36, pp. 5199-5213, 2012.

[23]  Y. Errami, A. Obbadi, S. Sahnoun, M. Benhmida, M. Ouassaid, M. Maaroufi, “Design of a nonlinear backstepping control strategy of grid interconnected wind power system based PMSG,” Proce. AIP Conf. Technol. Mater. Renewable Energy, Environ. Sustainability, 1758, 030053-1–030053-13, July 2016.

[24]  M. Nasiri, J. Milimonfared, S. H. Fathi, “Modeling, analysis and comparison of TSR and OTC methods for MPPT and power smoothing in permanent magnet synchronous generator-based wind turbines,” Energy Convers. Manage. vol. 86, pp. 892-900, 2014.

[25]  M. Nasiri, R. Mohammadi, “Peak current limitation for grid side inverter by limited active power in PMSG-based wind turbines during different grid faults,” IEEE Trans. Sustain. Energy, vol. 8, no. 1, pp. 3-12, 2017. 

[26]  H. Geng, D. Xu, B. Wu, G. Yang, “Unified power control for PMSG based WECS Operating under different grid conditions,” IEEE Trans. Energy Convers., vol. 26, no. 3, pp. 822-830, Sep. 2011.


Volume 6, Issue 2
Summer and Autumn 2018
Pages 218-228
  • Receive Date: 10 November 2017
  • Revise Date: 17 January 2018
  • Accept Date: 08 May 2018