A Power Flow Method for Radial Distribution Feeders with DER Penetration

Authors

  • Panagiotis M. Anagnostopoulos School of Electrical and Computer Engineering, National Technical University of Athens (NTUA), 9 Iroon Polytechniou str., 15780 Athens
  • Stavros A. Papathanassiou School of Electrical and Computer Engineering, National Technical University of Athens (NTUA), 9 Iroon Polytechniou str., 15780 Athens

DOI:

https://doi.org/10.6000/1929-6002.2019.08.01

Keywords:

Distribution power flow, voltage calculation, power losses calculation, distributed energy resources, DistFlow, ModDistFlow.

Abstract

This paper presents a novel power flow method suitable for radial distribution feeders, which consists a modification of the simplified power flow concept known as the DistFlow method, already available in the literature. The proposed method relies upon a differentiated manipulation of power losses, which are taken into account in voltage calculations, unlike other simplified methods, where losses are totally neglected. As a result, calculation accuracy is greatly improved, in terms of node voltages, losses and overall active & reactive power flows. In addition, the proposed method is non-iterative and entirely linear, being easily implementable and fast in execution. The method is particularly suited for feeders with a high penetration of Distributed Energy Resources (DER), providing results that closely match those of a full non-linear power flow and are considerably more accurate than the traditional linearized distribution power flow methods, without any increase in computational burden. The new method is applied to a variety of case studies in the paper, to demonstrate its accuracy and effectiveness, comparing its performance with the simplified (linearized) DistFlow and a conventional non-linear power flow method.

References


[1]Chakavorty J, Gupta M. A New Method of Load-Flow Solution of Radial Distribution Networks. International Journal of Electronics and Communication Engineering 2012; 5(1): 9-22.
[2]Haque MH. Efficient load flow method for distribution systems with radial or meshed configuration. IEE Proceedings-Generation, Transmission and Distribution 1996; 143(I)
[3]Ravi Teja B, Murty VVSN, Kumar A. An Efficient and Simple Load Flow Approach for Radial and Meshed Distribution Networks. International Journal of Grid and Distributed Computing, 2016; 9(2): 85-102.
[4]Suna H, Nikovskib D, Ohnoc T, et al. A fast and robust load flow method for distribution systems with distributed generations. Energy Procedia 2011; 12: 236-244.
[5]Wang Y, Wu Z, Dou X, et al. Interval power flow analysis via multi-stage affine arithmetic forunbalanced distribution network. Electric Power Systems Research 2017; 142: 1-8.
[6]Garces A. A quadratic approximation for the optimal power flow in power distribution systems. Electric Power Systems Research 2016; 130: 222-229.
[7]Matos MA. A new power flow method for radial networks. Proc. Conf. IEEE Power Tech, Bologna, Italy, 2003.
[8]De Oliveira-De Jesus PM, Alvarez MA, Yusta JM. Distribution power flow method based on a real quasi-symmetric matrix. Electric Power Systems Research 2013; 95: 148-159.
[9]Ashokkumar R, Aravindhababu P. An Improved Power flow Technique for Distribution Systems. Journal of Computer Science, Informatics and Electrical Engineering 2009; 3(1).
[10]Ghosh S, Sherpa KS. An Efficient Method for Load-Flow Solution of Radial Distribution Networks. International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering 2008; 2(9).
[11]Shrivastava C, Gupta M, Koshti A. Review of Forward & Backward Sweep Method for Load Flow Analysis of Radial Distribution System. International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering 2015; 4(6).
[12]Chiang HD. A decoupled load flow-method for distribution power networks: algorithms, analysis and convergence study. Electrical Power and Energy Systems 1991; 13(3): 130-138.
[13]Hamouda A, Zehar K. Efficient load flow method for radial distribution feeders. Journal of Applied Science 2006; 6(13): 2741-2748.
[14]Vinoth Kumar K, Selvan MP. A Simplified Approach for Load Flow Analysis of Radial Distribution Network with embedded generation. TENCON 2008 IEEE Region 10 Conf., Hyderabad, India, November 2008; pp. 1-6.
[15]Ding T, Li F, Li X, Sun H, et al. Interval radial power flow using extended DistFlow formulation and Krawczyk iteration method with sparse approximate inverse preconditioner. IET Generation, Transmission & Distribution 2015; 9(14): 1998-2006.
[16]Nanda J, Srinivas MS, Sharma M, et al. New findings on radial distribution system load flow algorithms. Power Engineering Society Winter Meeting IEEE, Singapore, Singapore, Jan. 2000 2: 1157-1161.
[17]Murari K, Ghosh S, Singh N. An Effective Technique for Load-Flow Solution of Radial Distribution Networks. International Electrical Engineering Journal (IEEJ) 2015; 6(1): 1711-1715.
[18]Ramana T, Ganesh V, Sivanagaraju S. Simple and Fast Load Flow Solution for Electrical Power Distribution Systems. International Journal on Electrical Engineering and Informatics 2013; 5(3).
[19]Haque MH. A general load flow method for distribution systems. Electric Power Systems Research 1999; 54: 47-54.
[20]Farag HE, El-Saadany EF, El Shatshat R, et al. A generalized power flow analysis for distribution systems with high penetration of distributed generation. Electric Power Systems Research 2011; 81: 1499-1506.
[21]Eminoglu U, Hakan Hocaoglu M. A new power flow method for radial distribution systems including voltage dependent load models. Electric Power Systems Research 2005; 76: 106-114.
[22]Ghosh S, Das D. Method for load-flow solution of radial distribution networks, IEE Proceedings-Generation, Transmission and Distribution 1999; 146(6): 641-648.
[23]Taylor JA, Hover FS. Convex Models of Distribution System Reconfiguration. IEEE Transactions on Power Systems 2012; 27(3): 1407-1413.
[24]Hijazi HL, Thiébaux S. Optimal AC Distribution Systems Reconfiguration. Power Systems Computation Conference (PSCC), Wroclaw, Poland, August 2014.
[25]Baran ME, Wu FF. Optimal sizing of capacitors placed on a radial distribution system. IEEE Transactions on Power Delivery 1989; 4(1): 735-743.
[26]Baran ME, Wu FF. Optimal capacitor placement on radial distribution systems. IEEE Transactions on Power Delivery 1989; 4(1): 725-734.
[27]Baran ME, Wu FF. Network reconfiguration in distribution systems for loss reduction and load balancing. IEEE Transactions on Power Delivery 1989; 4(2): 1401-1407.
[28]Srinivasa Rao R, Narasimham SVL, Ramalingaraju M. Optimization of Distribution Network Configuration for Loss Reduction Using Artificial Bee Colony Algorithm. International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering 2008; 2(9).
[29]Arjun Yadav M, Srikanth Reddy D, Hitesh KSN, et al. Performance Improvement of the Radial Distribution System by using Switched Capacitor Banks. Int. Journal on Recent Trends in Engineering and Technology 2014; 10(2).
[30]Rahman TKA, Jasmon GB. A New Technique For Voltage Stability Analysis In A Power System and Improved Loadflow Algorithm For Distribution Network. Proc. Int. Conf. Energy Management and Power Delivery, Singapore, Singapore 1995; 2: 714-719.
[31]Turitsyn K, Sulc P, Backhaus S, et al. Local Control of Reactive Power by Distributed Photovoltaic Generators. Proc. Int. Conf. IEEE Smart Grid Communications, Gaithersburg, USA, 2010.
[32]Turitsyn K, S?lc P, Backhaus S, Chertkov M. Distributed control of reactive power flow in a radial distribution circuit with high photovoltaic penetration. Proc. IEEE PES General Meeting, July 2010; 1-6.
[33]Farivar M, Chen L, Low S. Equilibrium and dynamics of local voltage control in distribution systems. 52nd IEEE Annual Conference Decision and Control (CDC), December 2013; 4329-4334.
[34]Yeh H-G, Gayme DF, Low SH. Adaptive VAR Control for Distribution Circuits With Photovoltaic Generators. IEEE Transactions on Power Systems 2012; 27(3): 1656-1663.
[35]Xing H, Cheng H, Zhang Y, et al. Active distribution network expansion planning integrating dispersed energy storages ystems. IET Generation, Transmission & Distribution 2016; 10(3): 638-644.
[36]Sulc P, Turitsyn K, Backhaus S, et al. Options for Control of Reactive Power by Distributed Photovoltaic Generators. Proc. of the IEEE, June 2011; 99(6).

Downloads

Published

2019-08-06

How to Cite

Anagnostopoulos, P. M., & Papathanassiou, S. A. (2019). A Power Flow Method for Radial Distribution Feeders with DER Penetration. Journal of Technology Innovations in Renewable Energy, 8, 1–12. https://doi.org/10.6000/1929-6002.2019.08.01

Issue

Section

Articles