Abstract
An analytic electromagnetic calculation method for doubly fed induction generator (DFIG) in wind turbine system was presented. Based on the operation principles, steady state equivalent circuit and basic equations of DFIG, the modeling for electromagnetic calculation of DFIG was proposed. The electromagnetic calculation of DFIG was divided into three steps: the magnetic flux calculation, parameters derivation and performance checks. For each step, the detailed numeric calculation formulas were all derived. Combining the calculation formulas, the whole electromagnetic calculation procedure was established, which consisted of three iterative calculation loops, including magnetic saturation coefficient, electromotive force and total output power. All of the electromagnetic and performance data of DIFG can be calculated conveniently by the established calculation procedure, which can be used to evaluate the new designed machine. A 1.5 MW DFIG designed by the proposed procedure was built, for which the whole type tests including no-load test, load test and temperature rising test were carried out. The test results have shown that the DFIG satisfies technical requirements and the test data fit well with the calculation results which prove the correctness of the presented calculation method.
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LI H, CHEN Z, Overview of different wind generator systems and their comparisons [J]. IET Renewable Power Generation, 2008, 2(6): 123–138.
CHONG W T, POH S C, FAZLIZAN A, PAN K C. Vertical axis wind turbine with omni-directional-guide-vane for urban high-rise buildings [J]. J Cent South Univ, 2012, 19: 727–732.
VICATOS M S, TEGOPOILOS J A. Steady state analysis of a double-fed induction generator under synchronous operation [J], IEEE Transaction on Energy Conversion, 1989, 4(9): 495–501.
TAMURA J, SASAKI T, ISHIKAWA S. Analysis of the steady state characteristics of doubly fed synchronous machines [J]. IEEE Transaction on Energy Conversion, 1989, 4(6): 250–256.
PADRON J F M, LORENZO A E F. Calculating steady-state operating conditions for doubly-fed induction generator wind turbines [J]. IEEE Transactions on Power Systems, 2010, 25(4): 922–928.
LEDESMA P, USAOLA J. Doubly fed induction generator model for transient stability analysis [J]. IEEE Transaction on Energy Conversion, 2005, 20(6): 388–397.
CARDENAS R, PENA R, CLARE J. Stability Analysis of a wind energy conversion system based on a doublyed induction generator fed by a matrix converter [J]. IEEE Transaction on Industrial Electronics, 2006, 56(10): 4194–4206.
BREKKEN T A K, MOHAN N. Control of a doubly fed induction wind generator under unbalanced grid voltage conditions [J]. IEEE Transaction on Energy Conversion, 2007, 22(3): 129–135.
MARTIN D S, AMENEDO J L R, ARNALTE S. Direct power control applied to doubly fed induction generator under unbalanced grid voltage conditions [J]. IEEE Transaction on Power Electronics, 2008, 23(10): 2328–2336.
WU Feng, ZHANG X P, JU Ping. Decentralized nonlinear control of wind turbine with doubly fed induction generator [J]. IEEE Transactions on Power Systems, 2008, 23(3): 613–621.
LIU Jin-jun, LI J T. Analytical solution of air-gap field in permanent-magnet motors taking into account the effect of pole transition over slots [J]. IEEE Transaction on Magnetics, 2007, 43(10): 3872–3883.
RASMUSSEN K F, JOHN H D, MILLER T J E. Analytical and numerical computation of air-gap magnetic field in brushless motors with surface permanent magnets [J]. IEEE Transaction on Magnetics, 2000, 36(11): 1547–1554.
LIU Jin-jun, CHAO B, ZHAGN Q-d. Electromagnetic design for hard disk drive spindle motors with fluid film lubricated bearings [J]. IEEE Transaction on Magnetics, 1996, 32(9): 3893–3895.
FAIZ J, JAFARI H. Two-dimensional magnetic field analysis of internal rotor permanent-magnet motors [J]. IEEE Transaction on Magnetics, 1999, 35(9): 4232–4237.
QU R, LIPO T A. Analysis and modeling of air-gap and zigzag leakage fluxes in a surface-mounted permanent-magnet machine [J]. IEEE Trans Ind Appl, 2004, 40(1): 121–127.
LI Hui, CHEN Z, POLINDER H. Optimization of multibrid permanent-magnet wind generator systems [J]. IEEE Transactions on Energy Conversion, 2009, 24(4): 82–92.
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Foundation item: Project(2011DFA62240) supported by the International Scientific and Technological Cooperation Projects, China; Project(019945-SES6) supported by the European Union (EU) 6th Framework Program UP-WIND Project, Denmark
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Zhang, Wj., Huang, Sd., Gao, J. et al. An analytic electromagnetic calculation method for performance evolution of doubly fed induction generators for wind turbines. J. Cent. South Univ. 20, 2763–2774 (2013). https://doi.org/10.1007/s11771-013-1795-1
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DOI: https://doi.org/10.1007/s11771-013-1795-1