A New Control Strategy based on Reference Values Changing for Enhancing LVRT capability of DFIG in Wind Farm

Zahra Rafiee, Mansour Rafiee, Mohammadreza Aghamohammadi

Abstract


Low voltage ride through (LVRT) capability enables a doubly fed induction generator (DFIG) – based wind farm (WF) to remain online supporting the electric grid during fault condition. This paper proposes a control-based strategy for improving LVRT capability of DFIG, in which by changing active and reactive powers reference values following a voltage dip (VD) condition. Moreover, the direct power control (DPC) method is modified to adaptively change the reference values based on the severity of VD. In the proposed modified DPC (MDPC) method, the parameters of the PI controllers are tuned using the imperialist competitive algorithm (ICA). For activating/deactivating the proposed strategy, a voltage dip index (VDI) is proposed which is updated within a moving time window including samples measured by phasor measurement unit (PMU). In order to evaluate rout mean square (RMS) value of the voltage from the measured values by PMU, the DFT technique is used. For activating/deactivating the control strategy, two threshold values α and β are defined. In the active mode, the active and reactive power are changed to zero and one p.u, while in the deactivate mode theses are changed to one and zero p.u, respectively. Based on the proposed control strategy, during a VD condition, DFIG will be able to smooth the DC-link voltage fluctuations and significantly reduces the oscillations of the stator and rotor currents. The simulation results show the effectiveness of the proposed control strategy for improving LVRT capability of DFIG.


Keywords


Doubly fed induction generator (DFIG); Low voltage ride through (LVRT); direct power control (DPC); Voltage dip, imperialist competitive algorithm

Full Text:

PDF

References


“Global Wind Report 2017.†[Online]. Available: http://files.gwec.net/register?file=/files/GWR2017.pdf. [Accessed: 10-Jun-2018].

M. K. Salehi and R. Z. Davarani, “Effect of Different Turbine-generator Shaft Models on the Subsynchronous Resonance Phenomenon in the Double Cage Induction Generator Based Wind Farm,†Int. J. Eng. - Trans. B Appl., vol. 29, no. 8, pp. 1103–1111, 2016.

T. Douadi, Y. Harbouche, R. Abdessemed, and I. Bakhti, “Improvement Performances of Active and Reactive Power Control Applied to DFIG for Variable Speed Wind Turbine Using Sliding Mode Control and FOC,†Int. J. Eng. - Trans. A Basics, vol. 31, no. 10, pp. 1689–1697, 2018.

W. Teng and Y. Meng, “Rotor-reference-current-oriented control strategy for low-voltage ride-through of DFIG,†IEEJ Trans. Electr. Electron. Eng., vol. 13, no. 10, pp. 1421–1429, Oct. 2018.

H. Shahbabaei Kartijkolaie, M. Radmehr, and M. Firouzi, “LVRT capability enhancement of DFIG-based wind farms by using capacitive DC reactor-type fault current limiter,†Int. J. Electr. Power Energy Syst., vol. 102, pp. 287–295, Nov. 2018.

E. Jamila and S. Abdelmjid, “Comparative Study of the Performance of Static Synchronous Compensator, Series Compensator and Compensator /Battery Integrated to a Fixed Wind Turbine (RESEARCH NOTE),†Int. J. Eng. - Trans. A Basics, vol. 29, no. 4, pp. 581–589, 2016.

M. Rahimi and A. Azizi, “Transient behavior representation, contribution to fault current assessment, and transient response improvement in DFIG-based wind turbines assisted with crowbar hardware,†Int. Trans. Electr. Energy Syst., vol. 29, no. 1, p. e2698, Jan. 2019.

P. K. Gayen, D. Chatterjee, and S. K. Goswami, “An improved low-voltage ride-through performance of DFIG based wind plant using stator dynamic composite fault current limiter,†ISA Trans., vol. 62, pp. 333–348, May 2016.

A. El Makrini, Y. El Karkri, Y. Boukhriss, H. Elmarkhi, and H. El Mossaoui, “LVRT Control Strategy of DFIG Based Wind Turbines Combined the Active and Passive Protections,†Int. J. Renew. Energy Res., vol. 7, no. 3, pp. 1258–1269, Sep. 2017.

H. S. Salama and I. Vokony, “Power Stability Enhancement of SCIG and DFIG Based Wind Turbine Using Controlled-SMES,†Int. J. Renew. Energy Res., vol. 9, no. 1, pp. 147–156, Mar. 2019.

X. Zhang, X. Cao, W. Wang, and C. Yun, “Fault Ride-Through Study of Wind Turbines,†J. Power Energy Eng., vol. 01, no. 05, pp. 25–29, Nov. 2013.

A. D. Falehi and M. Rafiee, “Enhancement of DFIG-Wind Turbine’s LVRT capability using novel DVR based Odd-nary Cascaded Asymmetric Multi-Level Inverter,†Eng. Sci. Technol. an Int. J., vol. 20, no. 3, pp. 805–824, Jun. 2017.

A. Darvish Falehi and M. Rafiee, “Fault ride-through capability enhancement of DFIG-based wind turbine using novel dynamic voltage restorer based on two switches boost converter coupled with quinary multi-level inverter,†Energy Syst., vol. 9, no. 4, pp. 1071–1094, Sep. 2017.

S. Deepa and S. Rajapandian, “Harmonic Reduction Technique Using Flying Capacitor Based Z Source Inverter for a DVR,†Int. J. Eng. - Trans. C Asp., vol. 26, no. 3, pp. 309–314, Nov. 2012.

L. Yang, Z. Xu, J. Ostergaard, Z. Y. Dong, and K. P. Wong, “Advanced Control Strategy of DFIG Wind Turbines for Power System Fault Ride Through,†IEEE Trans. Power Syst., vol. 27, no. 2, pp. 713–722, May 2012.

D. Xiang, L. Ran, P. J. Tavner, and S. Yang, “Control of a Doubly Fed Induction Generator in a Wind Turbine During Grid Fault Ride-Through,†IEEE Trans. Energy Convers., vol. 21, no. 3, pp. 652–662, Sep. 2006.

Z. Su, P. Wang, L. Tan, and P. Song, “An improved LVRT control method of MW level DFIG-based WECS,†in 2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014, pp. 1400–1405.

Huang Qingjun, Sun Mucun, Zou Xudong, Tong Li, Xiong Wei, and Chen Jianqing, “A reverse current tracking based LVRT strategy for doubly fed induction generator (DFIG),†in IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013, pp. 7295–7300.

J. Liang, W. Qiao, and R. Harley, “Feed-forward transient current control for low-voltage ride-through enhancement of DFIG wind turbines,†in 2011 IEEE/PES Power Systems Conference and Exposition, 2011, pp. 1–1.

Jun Yao, Hui Li, Yong Liao, and Zhe Chen, “An Improved Control Strategy of Limiting the DC-Link Voltage Fluctuation for a Doubly Fed Induction Wind Generator,†IEEE Trans. Power Electron., vol. 23, no. 3, pp. 1205–1213, May 2008.

M. J. Morshed and A. Fekih, “A new fault ride-through control for DFIG-based wind energy systems,†Electr. Power Syst. Res., vol. 146, pp. 258–269, May 2017.

M. Rahimi and M. Parniani, “Low voltage ride-through capability improvement of DFIG-based wind turbines under unbalanced voltage dips,†Int. J. Electr. Power Energy Syst., vol. 60, pp. 82–95, Sep. 2014.

N. Z. Frede Blaabjerg, Dehong Xu , Wenjie Chen, “Dynamic Model of DFIG Under Grid Faults,†in Advanced Control of Doubly Fed Induction Generator for Wind Power Systems, Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018, pp. 297–340.

S. Xiao, G. Yang, H. Zhou, and H. Geng, “An LVRT Control Strategy Based on Flux Linkage Tracking for DFIG-Based WECS,†IEEE Trans. Ind. Electron., vol. 60, no. 7, pp. 2820–2832, Jul. 2013.

A. Medjber, “Comparative Study between Direct and Indirect Vector Control Applied to a Wind Turbine Equipped With a Double-Fed Asynchronous Machine Article,†Int. J. Renew. Energy Res., vol. 3, no. 1, pp. 88–93, Mar. 2013.

R. Ghandehari, A. Mirzakhani, and S. A. Davari, “A New Control Algorithm Method Based on DPC to Improve Power Quality of DFIG in Unbalance Grid Voltage Conditions,†Int. J. Renew. Energy Res., vol. 8, no. 4, pp. 2228–2238, Dec. 2018.

J. J. Justo, F. Mwasilu, and J.-W. Jung, “Enhanced crowbarless FRT strategy for DFIG based wind turbines under three-phase voltage dip,†Electr. Power Syst. Res., vol. 142, pp. 215–226, Jan. 2017.

E. Atashpaz-Gargari and C. Lucas, “Imperialist competitive algorithm: An algorithm for optimization inspired by imperialistic competition,†in 2007 IEEE Congress on Evolutionary Computation, 2007, pp. 4661–4667.

Z. Rafiee, S. Ganjefar, and A. Fattahi, “A new PSS tuning technique using ICA and PSO methods with the fourier transform,†in Proceedings - 2010 18th Iranian Conference on Electrical Engineering, ICEE 2010, 2010.

Z. Rafiee, A. F. Meyabadi, and H. Heydari, “PSS parameters values finding using SMVSDFT objective function and a new technique for multi-objective function in a multi-machine power system,†Int. J. Power Energy Convers., vol. 6, no. 3, p. 252, 2015.

Z. Rafiee and A. F. Meyabadi, “Optimal design of power system stabiliser using a new cost function and PSO algorithm,†Int. J. Power Energy Convers., vol. 3, no. 3/4, p. 253, 2012.

M. Abdelhafidh, M. Mahmoudi, L. Nezli, and O. Bouchhida, “Modeling and Control of a Wind Power Conversion System Based on the Double-Fed Asynchronous Generator,†Int. J. Renew. Energy Res., vol. 2, no. 2, pp. 300–306, May 2012.

A. H. Kasem, E. F. El-Saadany, H. H. El-Tamaly, and M. A. A. Wahab, “An improved fault ride-through strategy for doubly fed induction generator-based wind turbines,†IET Renew. Power Gener., vol. 2, no. 4, pp. 201–214, Dec. 2008.




DOI (PDF): https://doi.org/10.20508/ijrer.v9i4.9952.g7765

Refbacks

  • There are currently no refbacks.


Online ISSN: 1309-0127

Publisher: Gazi University

IJRER is cited in SCOPUS, EBSCO, WEB of SCIENCE (Clarivate Analytics);

IJRER has been cited in Emerging Sources Citation Index from 2016 in web of science.

WEB of SCIENCE between 2020-2022; 

h=30,

Average citation per item=5.73

Impact Factor=(1638+1731+1808)/(189+170+221)=9.24

Category Quartile:Q4