Decoupled, Reduced Order Model for Double Output Induction Generator Using Integral Manifolds and Iterative Separation Theory
In this paper presents a technique for developing the
computational efficiency in simulating double output induction
generators (DOIG) with two rotor circuits where stator transients are
to be included. Iterative decomposition is used to separate the flux–
Linkage equations into decoupled fast and slow subsystems, after
which the model order of the fast subsystems is reduced by
neglecting the heavily damped fast transients caused by the second
rotor circuit using integral manifolds theory. The two decoupled
subsystems along with the equation for the very slowly changing slip
constitute a three time-scale model for the machine which resulted in
increasing computational speed. Finally, the proposed method of
reduced order in this paper is compared with the other conventional
methods in linear and nonlinear modes and it is shown that this
method is better than the other methods regarding simulation
accuracy and speed.
[1] J. B. Ekanayake, L. Holdsworth, X. Wu, N. Jenkins, "Dynamic
Modeling of Doubly Fed Induction Generator Wind Turbines", IEEE
Trans. On power systems, Vol. 18, No .2, May 2003, pp.803-809.
[2] N. Gunarathnam, D. W. Novotny," The effect of neglecting stator
transients of induction machines in dynamic stability studies", IEEE TPAS-
99 PP.2050-2059, Nov 1980.
[3] E. Levil, D. Rauski, "Self excitation modeling in deep bar and double
cage induction generators", IEEE Sixth International Conference on
Electrical Machines and Drives, 1993, 8-10 Sep., 1993.
[4] Castro, R.M.G.; Ferreira de Jesus, J.M.; "A wind park reduced-order
model using singular perturbations theory," IEEE Transactions on
Energy Conversion, Volume: 11, No:4, Dec.1996, Page(s): 735 -741.
[5] G. Richrds, O.T. Tan, "Decomposed, reduced order model for double
cage induction machines", IEEE T-EC-1, No.3, Sept. 1986, pp.87-93.
[6] Tseng, H.C.; Kokotovic, P.V.; "Tracking and disturbance rejection in
nonlinear systems: the integral manifold approach", Proceedings of the
27th IEEE Conference on Decision and Control, 1988, 7-9 Dec. 1988,
Page(s):459-463, vol.1.
[7] Sedighizadeh. M., Kalantar, M; "A wind farm reduced order model
using Integral manifold theory," IASTED conf. Modeling, identification
and control (MIC 2004), 23-25 Feb 2004, Switzerland, PP.281-286.
[1] J. B. Ekanayake, L. Holdsworth, X. Wu, N. Jenkins, "Dynamic
Modeling of Doubly Fed Induction Generator Wind Turbines", IEEE
Trans. On power systems, Vol. 18, No .2, May 2003, pp.803-809.
[2] N. Gunarathnam, D. W. Novotny," The effect of neglecting stator
transients of induction machines in dynamic stability studies", IEEE TPAS-
99 PP.2050-2059, Nov 1980.
[3] E. Levil, D. Rauski, "Self excitation modeling in deep bar and double
cage induction generators", IEEE Sixth International Conference on
Electrical Machines and Drives, 1993, 8-10 Sep., 1993.
[4] Castro, R.M.G.; Ferreira de Jesus, J.M.; "A wind park reduced-order
model using singular perturbations theory," IEEE Transactions on
Energy Conversion, Volume: 11, No:4, Dec.1996, Page(s): 735 -741.
[5] G. Richrds, O.T. Tan, "Decomposed, reduced order model for double
cage induction machines", IEEE T-EC-1, No.3, Sept. 1986, pp.87-93.
[6] Tseng, H.C.; Kokotovic, P.V.; "Tracking and disturbance rejection in
nonlinear systems: the integral manifold approach", Proceedings of the
27th IEEE Conference on Decision and Control, 1988, 7-9 Dec. 1988,
Page(s):459-463, vol.1.
[7] Sedighizadeh. M., Kalantar, M; "A wind farm reduced order model
using Integral manifold theory," IASTED conf. Modeling, identification
and control (MIC 2004), 23-25 Feb 2004, Switzerland, PP.281-286.
@article{"International Journal of Electrical, Electronic and Communication Sciences:61963", author = "M. Sedighizadeh and A. Rezazadeh", title = "Decoupled, Reduced Order Model for Double Output Induction Generator Using Integral Manifolds and Iterative Separation Theory", abstract = "In this paper presents a technique for developing the
computational efficiency in simulating double output induction
generators (DOIG) with two rotor circuits where stator transients are
to be included. Iterative decomposition is used to separate the flux–
Linkage equations into decoupled fast and slow subsystems, after
which the model order of the fast subsystems is reduced by
neglecting the heavily damped fast transients caused by the second
rotor circuit using integral manifolds theory. The two decoupled
subsystems along with the equation for the very slowly changing slip
constitute a three time-scale model for the machine which resulted in
increasing computational speed. Finally, the proposed method of
reduced order in this paper is compared with the other conventional
methods in linear and nonlinear modes and it is shown that this
method is better than the other methods regarding simulation
accuracy and speed.", keywords = "DOIG, Iterative separation, Integral manifolds,Reduced order.", volume = "1", number = "12", pages = "1910-7", }