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Three-Phase Distribution Power Flow Solution Considering Symmetrical and Unsymmetrical Three-Phase Voltage Control Mode of PV Nodes

Elaheh Mashhour(1*), Seyed-Masoud Moghaddas-Tafreshi(2)

(1) Faculty of Electrical Engineering, K.N.Toosi University of Technology, Tehran, Iran, Islamic Republic of
(2) Faculty of Electrical Engineering, K.N.Toosi University of Technology, Tehran, Iran, Islamic Republic of
(*) Corresponding author


DOI: https://doi.org/10.15866/irecon.v7i2.17703

Abstract


The Distributed Generators (DGs) which are operated as PV generators can be controlled in symmetrical and unsymmetrical three-phase voltage control mode.  This paper presents an unbalanced three-phase backward/forward power flow solution which can handle PV nodes in both modes. The proposed algorithm is based on the power summation method and takes the power losses into account. Moreover, a mathematical formula is extracted for calculating the power losses considering the mutual coupling between three phases. Active and reactive powers are used as flow variables; therefore checking the limits of reactive power of the generator of PV node is performed in a simple and straightforward manner. The proposed algorithm for a single source distribution system is validated by testing on IEEE four-node test feeder. The results of applying proposed algorithm on a modified IEEE 34-node test feeder show the capability of the algorithm in handling PV nodes in both control modes.
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Keywords


Power Flow; Symmetrical Voltage Control Mode; Unsymmetrical Voltage Control Mode

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References


A.V. Garcia, M.G. Zago, Three-phase fast-decoupled power flow for distribution networks, IEE Proceeding Generation, Transmission and Distribution, vol. 143 n.2, Mar. 1996, pp. 188-192.

M. S. Srinivas, Distribution load flow: a brief review, IEEE Power Engineering Society Winter Meeting, Jan. 23-27, 2000, Singapore.

D. Shirmohammadi, H.W. Hong, A. Semlyen, G. X. Luo, A compensation-based power flow method for weakly meshed distribution and transmission network, IEEE Transactions on Power System, vol. 3 n. 2, May 1988, pp. 753-762.

T-H. Chen, M-S. Chen, K-J. Hwang, P. Kotas, E A. Chebli, Distribution system power flow analysis – a rigid approach, IEEE Transactions on Power Delivery, vol. 6 n. 3, July 1991, pp. 1146-1152.

J.C.M. Vieira Jr, W. Freitas, A. Morelato, Phase – decoupled method for three-phase power flow analysis of unbalanced distribution systems, IEE Proceeding Generation, Transmission and Distribution, vol.151 n. 5, Sept. 2004, pp. 568 – 574.

H. Chen, J. Chen, D. Shi, X. Duan, Power flow study and voltage stability analysis for distribution systems with distributed generation. IEEE Power Engineering Society General Meeting, June 18-22, 2006, Montréal, Canada.

R. Berg, E. S. Hawkins, W. W. Plines, Mechanized Calculation of Unbalanced Load Flow on Radial Distribution Circuits, IEEE Transactions on Power Apparatus and System, vol. PAS-86 n. 4, April 1967, pp.415-421.

C. S.Cheng, D. Shirmohammadi, A three-phase power flow method for real-time distribution system analysis, IEEE Transactions on Power System, vol. 10 n. 2, May 1995, pp. 671-679.

S. Khushalani, N. Schulz, Unbalanced distribution power flow with distributed generation, IEEE PES Transmission and Distribution Conference and Exhibition, May 21-24, 2006, Dallas, Texas, US.

S. Khushalani, J. M.Solanki J, N. N.Schulz, Development of three-Phase unbalanced power flow using PV and PQ models for distributed generation and study of the impact of DG models, IEEE Transactions on Power System, vol. 22 n. 3, August 2007, pp. 1019-1025.

Y. Zhu, K. Tomasovic, Adaptive power flow method for distribution systems with dispersed generation, IEEE Transactions on Power Delivery, vol. 17 n. 3, July 2002, pp. 822-827.

M.E. Baran, E.A. Staton, Distribution transformer models for branch current based feeder analysis, IEEE Transactions on Power System, vol. 12 n. 2, May 1997, pp. 698-703.

G.X. Luo, A. Semlyen, Efficient load flow for large weakly meshed networks, IEEE Transactions on Power System, vol. 5 n. 4, Nov. 1990, pp. 1309-1316.

W.F. Tinney, C.E. Hart, Power flow solution by Newton's method, IEEE Transactions on Power Apparatus and systems, vol. PAS-86 n. 11, Nov. 1967, pp. 1449-1456.

J.P. Britton, Improved area interchange control for Newton method load flows, IEEE Transactions on Power Apparatus and Systems, vol. PAS-88 n.10, Oct. 1969, pp. 1577-1581.

B. Stott, Decoupled Newton load flow, IEEE Transactions on Power Apparatus and Systems, vol. PAS-91 n. 5, Sept. 1972, pp. 1955-1952.

B. Stott, Fast decoupled load flow, IEEE Transactions on Power Apparatus and Systems, vol. PAS-93 n. 3, May 1974, pp. 859-869.

T-H. Chen, M.-S. Chen, T. Inoue, P. Kotas, E.A. Chebli, Three–phase cogenerator and transformer models for distribution system analysis, IEEE Transactions on Power Delivery, vol. 6 n. 4, October 1991, pp. 1671-1681.

P. Xiao, D.C. Yu, W. Yan, A unified three-phase transformer model for distribution load flow calculations, IEEE Transactions on Power System, vol. 21 n. 1, February 2006, pp. 153-159.

Radial Distribution Test Feeders, Available: http://ewh.ieee.org/soc/pes/dsacom/testfeeders.html


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