© The Institution of Engineering and Technology
For the grid-connected doubly-fed induction generator (DFIG)-based wind turbine, because of the stator connected to the grid directly, the stator flux easily suffers from the effects of grid voltage variations, such as grid disturbances and grid faults. Moreover, since the magnetic field is excited by the rotor current, stator flux is also affected by the rotor current. Therefore this study systematically studies the dynamic performances of stator flux under consecutive grid voltage variations and varying rotor currents, and its influence on the performances of the DFIG during grid faults. The analyses reveal that the stator flux can be accumulated by the consecutive variations of the stator voltage, and the instants of grid voltage variations can lead to different amplitudes of the stator flux. In addition, the conventional vector control strategy and the active damping strategy are compared with the behaviour of the stator flux. Furthermore, the simulation and experiment are carried out to validate the theoretical analyses, and the results have clearly confirmed the correctness and effectiveness of the analyses of the stator flux performances.
References
-
-
1)
-
25. Shuai, X., Geng, Y., Honglin, Z., Hua, G.: ‘An LVRT control strategy based on flux linkage tracking for DFIG-based WECS’, IEEE Trans. Ind. Electron., 2013, 60, pp. 2820–2832 (doi: 10.1109/TIE.2012.2205354).
-
2)
-
6. Alberdi, M., Amundarain, M., Garrido, A.J., Garrido, I., Maseda, F.J.: ‘Fault-ride-through capability of oscillating-water-column-based wave-power-generation plants equipped with doubly fed induction generator and airflow control’, IEEE Trans. Ind. Electron., 2011, 58, pp. 1501–1517 (doi: 10.1109/TIE.2010.2090831).
-
3)
-
24. Abad, G., Rodriguez, M.A., Poza, J.: ‘Three-level NPC converter-based predictive direct power control of the doubly fed induction machine at low constant switching frequency’, IEEE Trans. Ind. Electron., 2008, 55, pp. 4417–4429 (doi: 10.1109/TIE.2008.2007829).
-
4)
-
21. Levi, E., Wang, M.: ‘Online identification of the mutual inductance for vector controlled induction motor drives’, IEEE Trans. Energy Convers., 2003, 18, (2), pp. 299–305 (doi: 10.1109/TEC.2003.811720).
-
5)
-
12. Mohseni, M., Islam, S.M.: ‘Transient control of DFIG-based wind power plants in compliance with the Australian grid code’, IEEE Trans. Power Electron., 2012, 27, (6), pp. 2813–2824 (doi: 10.1109/TPEL.2011.2174380).
-
6)
-
18. Doherty, R.E.: ‘A simplified method of analyzing short-circuit problems’, Trans. Am. Inst. Electrical Eng., 1923, XLII, pp. 841–849 (doi: 10.1109/T-AIEE.1923.5060914).
-
7)
-
18. Pannell, G., Atkinson, D.J., Zahawi, B.: ‘Minimum-threshold crowbar for a fault-ride-through grid-code-compliant DFIG wind turbine’, IEEE Trans. Energy Convers., 2010, 25, (3), pp. 750–759 (doi: 10.1109/TEC.2010.2046492).
-
8)
-
14. Amiri, N., Madani, S.M., Lipo, T.A., Zarchi, H.A.: ‘An improved direct decoupled power control of doubly fed induction machine without rotor position sensor and with robustness to parameter variation’, IEEE Trans. Energy Convers., 2012, 27, pp. 873–884 (doi: 10.1109/TEC.2012.2209889).
-
9)
-
J.P. Costa ,
H. Pinheiro ,
T. Degner ,
G. Arnold
.
Robust controller for DFIGs of grid-connected wind turbines.
IEEE Trans. Ind. Electron.
,
9 ,
4023 -
4038
-
10)
-
2. Hua, G., Cong, L., Geng, Y.: ‘LVRT capability of DFIG-based WECS under asymmetrical grid fault condition’, IEEE Trans. Ind. Electron., 2013, 60, pp. 2495–2509 (doi: 10.1109/TIE.2012.2226417).
-
11)
-
19. Shang, L., Hu, J.: ‘Sliding-mode-based direct power control of grid-connected wind-turbine-driven doubly fed induction generators under unbalanced grid voltage conditions’, IEEE Trans. Energy Convers., 2012, 27, (2), pp. 362–373 (doi: 10.1109/TEC.2011.2180389).
-
12)
-
4. Mohseni, M., Islam, S., Masoum, M.A.S.: ‘Fault ride-through capability enhancement of doubly fed induction wind generators’, IET Renew. Power Gener., 2011, 5, pp. 368–376 (doi: 10.1049/iet-rpg.2010.0154).
-
13)
-
7. Cardenas, R., Pena, R., Alepuz, S., Asher, G.: ‘Overview of control systems for the operation of DFIGs in wind energy applications’, IEEE Trans. Ind. Electron., 2013, 60, pp. 2776–2798 (doi: 10.1109/TIE.2013.2243372).
-
14)
-
J. Lopez ,
E. Gubia ,
P. Sanchis ,
X. Roboam ,
L. Marroyo
.
Wind turbines based on doubly fed induction generator under asymmetrical voltage dips.
IEEE Trans. Energy Convers.
,
1 ,
321 -
330
-
15)
-
J. Lopez ,
E. Gubia ,
E. Olea ,
J. Ruiz ,
L. Marroyo
.
Ride through of wind turbines with doubly fed induction generator under symmetrical voltage dips.
IEEE Trans. Ind. Electron.
,
10 ,
4246 -
4254
-
16)
-
28. Pannell, G., Zahawi, B., Atkinson, D.J., Missailidis, P.: ‘Evaluation of the performance of a DC-Link brake chopper as a DFIG low-voltage fault-ride-through device’, IEEE Trans. Energy Convers., 2013, 28, pp. 535–542 (doi: 10.1109/TEC.2013.2261301).
-
17)
-
D.W. Xiang ,
L. Ran ,
P.J. Tavner
.
Control of a doubly fed induction generator in a wind turbine during grid fault ride-through.
IEEE Trans. Energy Convers.
,
652 -
662
-
18)
-
S. Hu ,
X. Lin ,
Y. Kang ,
X. Zou
.
An improved low-voltage ride-through control strategy of doubly fed induction generator during grid faults.
IEEE Trans. Power Electron.
,
3653 -
3665
-
19)
-
22. Thiringer, T., Petersson, A., Petru, T.: ‘Grid disturbance response of wind turbines equipped with induction generator and doubly-fed induction generator’. Proc. Power Eng. Society General Meeting, 2003, 2003, vol. 3, p. 1547.
-
20)
-
L.H. Yang ,
Z. Xu ,
J. Ostergaard ,
Z.Y. Dong ,
K.P. Wong
.
Advanced control strategy of DFIG wind turbines for power system fault ride through.
IEEE Trans. Power Syst.
,
2 ,
713 -
722
-
21)
-
1. Campos-Gaona, D., Moreno-Goytia, E.L., Anaya-Lara, O.: ‘Fault ride-through improvement of DFIG-WT by integrating a two-degrees-of-freedom internal model control’, IEEE Trans. Ind. Electron., 2013, 60, pp. 1133–1145 (doi: 10.1109/TIE.2012.2216234).
-
22)
-
35. Hossain, M.J., Saha, T.K., Mithulananthan, N., Pota, H.R.: ‘Control strategies for augmenting LVRT capability of DFIGs in interconnected power systems’, IEEE Trans. Ind. Electron., 2013, 60, (6), pp. 2510–2522 (doi: 10.1109/TIE.2012.2228141).
-
23)
-
19. Thiringer, T., Petersson, A., Petru, T.: ‘Grid disturbance response of wind turbines equipped with induction generator and doubly-fed induction generator’. Prco. IEEE PES Meeting, 2003, 2003, vol. 3, p. 1547.
-
24)
-
9. Jiaqi, L., Howard, D.F., Restrepo, J.A., Harley, R.G.: ‘Feedforward transient compensation control for DFIG wind turbines during both balanced and unbalanced grid disturbances’, IEEE Trans. Ind. Appl., 2013, 49, pp. 1452–1463 (doi: 10.1109/TIA.2013.2253439).
-
25)
-
27. Bongiorno, M., Thiringer, T.: ‘A generic DFIG model for voltage dip ride-through analysis’, IEEE Trans. Energy Convers., 2013, 28, pp. 76–85 (doi: 10.1109/TEC.2012.2222885).
-
26)
-
18. Xie, D., Xu, Z., Yang, L., et al: ‘A comprehensive LVRT control strategy for DFIG wind turbines with enhanced reactive power support’, IEEE Trans. Power Syst., 2013, 28, (3), pp. 3302–3310 (doi: 10.1109/TPWRS.2013.2240707).
-
27)
-
F.K.A. Lima ,
A. Luna ,
P. Rodriguez ,
E.H. Watanabe ,
F. Blaabjerg
.
Rotor voltage dynamics in the doubly fed induction generator during grid faults.
IEEE Trans. Power Electron.
,
1 ,
118 -
130
-
28)
-
J. López ,
P. Sanchis ,
X. Roboam ,
L. Marroyo
.
Dynamic behavior of the doubly fed induction generator during three-phase voltage dips.
IEEE Trans. Energy Convers.
,
3 ,
709 -
717
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