publication . Article . 2007

ANFIS based UPFC supplementary controller for damping low frequency oscillations in power systems

M. Sobha; R. Sreerama kumar; Saly George;
Open Access English
  • Published: 01 Dec 2007 Journal: Journal of Electrical Systems (issn: 1112-5209, Copyright policy)
  • Publisher: ESRGroups
Abstract
An adaptive neuro- fuzzy inference system (ANFIS) based supplementary Unified Power Flow Controller (UPFC) to superimpose the damping function on the control signal of UPFC is proposed. By using a hybrid learning procedure, the proposed ANFIS construct an input –output mapping based on stipulated input-output data pairs. The linguistic rules, considering the dependence of the plant output on the controlling signal are used to build the initial fuzzy inference structure. On the basis of linearized Philips-Hefron model of power system installed with UPFC, the damping function of the UPFC with various alternative UPFC control signals are investigated. In the simula...
Subjects
free text keywords: ANFIS, UPFC, Fuzzy logic, low frequency oscillations, Power system stability., Electrical engineering. Electronics. Nuclear engineering, TK1-9971
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[1] [2] [3] [4] [5] [6] [7] [8] [9] Kundur,P.,Klein,M.,Roger,G.J., and Zywno,M.S.: 'Application of power system stabilizers for enhancement of overall system stability', IEEE Trans.on Power System,4,(2),1989, pp.614 - 626. [OpenAIRE]

Hingorani,N.G.:'Power Electronics in Electrical Utilities',IEEE Proc.,76,(4),1988,pp.481-482. [OpenAIRE]

Gyugyi, L., and Schauderet at., C.D.: 'The unified power flow controller: A New Approach to Power Transmission Control', IEEE Trans. on Power Delivery, 10, (2),1995,pp.1085 - 1097. [OpenAIRE]

Chang,C.T.,Hsu,Y.Y.:'Design of upfc controllers and supplementary damping controller for power transmission control and stability enhancement of a longitudinal power system', IEE Proc.Gener. Transm.Distrib. 149,2002, pp.463 - 471.

Tambey,N.,and Kothari,M.L.: 'Upfc based damping controllers for damping low frequency oscillations in a power system', IE(I)journal-EL, 84, 2003, pp. 35-41.

Tambey,N., and Kothari,M.L. :'Damping of power system oscillations with unified power flow controller(UPFC)',IEEProc.Gener.Transm.Distrib.,150,(2), 2003, pp.129-140 Jyh-Shing Roger Jang.: 'ANFIS: Adaptive-Network-Based Fuzzy Inference System', IEEE Trans. Syst. Man and Cyber., 23, (3), 1993,pp. 665-685 E.V. Larsen, Juan.J, Sanchez-Gasca and Chow.J.H.'Concept for design of FACTS controllers to damp power swings', IEEE Transactions 1995,PWRS-2 (10), pp.948-956. [OpenAIRE]

Distrib., 1999, 146, (1), pp.81 - 87.

[10] Appendix 1.SMIB system Synchronous Machine : H= 4 .0 s, D=0.0 , T'do= 5.044 s, Xd=1.0 p.u , Excitation system: Ka=100 , Ta=0.01 s Transformer and Transmission line XtE =0.1 p.u , XE =0.1 p.u , XB = 0.1 p.u , XBv =0.3 p.u , Nominal operating condition: Pe =0.8 p.u , Qe =0.2 p.u , Vt =1.0 p.u , f=60Hz UPFC parameters mE =0.4 , mB =0.08, δE =-85.3° , δB =-78.2° , Vdc =2 p.u , K constants calculated for the nominal operating conditions: k1 = 0.5661, k2 = 0.1712, k3 = 2.4583, k4 = 0.4198, k5 = -0.1513, k6 = 0.3516, k7 = 0.0906, k8 = 0.0457, k9 = 0.0016 kpd = 0.0835, kvd = -0.0964, kqd = 0.2446 kpe = 0.3795, kpb = 0.1864, kpδ e =1.1936, kpδ b = 0.0529 kqe = 1.1628, kqb = 0.2855, kqδ e= -0.0380, kpδ b = -0.0423 kve = -0.4591, kvb = -0.1096, kvδ e = 0.0311, kvδ b= 0.0189 kce = -0.0192, kcb = 0.0991, kcδ e = -2.0312, kcδ b = 0.0793 Xe =0.5 p.u

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