Utilization of Electric Vehicles Connected to Distribution Substations for Peak Shaving of Utility Network Loads

Marek Mägi

doi:10.2478/ecce-2013-0007

Utilization of Electric Vehicles Connected to Distribution Substations for Peak Shaving of Utility Network Loads

Authors

Marek Mägi Doctoral student, Tallinn University of Technology

DOI:

https://doi.org/10.2478/ecce-2013-0007

Keywords:

AC-DC power converters, bidirectional power flow, DC-DC power converters, electric vehicles, substations

Abstract

Use of modern electric vehicles and their effective integration into power grids depends on the technologies applied around distribution substations. Distribution substations equipped with energy storing and V2G capability enable peak load shaving and demand response, which will reduce the need to make new investments into building new power sources or power grids to meet peak demand. This paper presents a distribution substation topology for utilizing electric vehicles as energy resource units for peak shaving of utility network loads. The topology allows bidirectional energy exchange among electric vehicles, battery pack energy storage devices and utility networks. The substation acts as a service provider in a microgrid. Functions of a microgrid application were simulated with MATLAB. The evaluation of the results has shown that electric vehicles can be effectively utilized for peak shaving of utility network loads. The results of the modelling and simulation were used for the development of a microgrid prototype. Assessment of capacities of electric vehicles showed that electric vehicles can provide short term support for the utility network.

References

M. Mägi, “Analysis of Distribution Substation Topologies for Energy Exchanging between EV and Utility Networks,” in11th International Symposium “Topical Problems in the Field of Electrical and Power Engineering” Pärnu 2012, 2012, pp. 158-167.

J.M. Guerrero, M. Chandorkar, T-L. Lee, P.C. Loh, “Advanced Control Architectures for Intelligent Microgrids - Part I: Decentralized and Hierarchical Control; Part II: Power Quality, Energy Storage, and AC/DC Microgrids,” in Industrial Electronics, IEEE, issue 99, 2012, pp 18.

M.Y. Nguyen, Y.T. Yoon, N.H. Choi, “Dynamic Programming Formulation of Microgrid Operation with Heat and Electricity Constraints,” in Transmission & Distribution Conference & Exposition: Asia and Pacific, IEEE, 2009, pp 4.

J.F. Zhao, J.G. Jiang, X.W. Yang, “AC-DC-DC Isolated Converter with Bidirectional Power Flow Capability” in IET Power Electron., Vol. 3, lss. 4, 2010, pp 472-479.

G.Y. Choe, J-S. Kim, B-K. Lee, C-Y. Won, T-W. Lee, “A Bi-directional Battery Charger for Electric Vehicles Using Photovoltaic PCS Systems,” in Vehicle Power and Propulsion Conference VPPC10, IEEE, 2010, pp 6.

M. Erfani, “Design of a Bidirectional On-board Battery Charger in Hybrid Electric Vehicle Applications,” Master of science thesis, Chalmers University of Technology, Göteborg, Sweden, 2011.

M. Mägi, K.Peterson, and E.Pettai, “Analysis of Protection and Control Functions of Low Voltage Part of Substation for Smart Grid Applications,” in “Proceedings of 8th International Conference 2012 Electric Power Quality and Supply Reliability: 2012 Electric Power Quality and Supply Reliability” Tartu 2012, 2012, IEEE, pp. 297-304.

A. Oudalov, R. Cherkaoui and A. Beguin, “Sizing and Optimal Operation of Battery Energy Storage System for Peak Shaving Application,” in Power Tech, 2007 IEEE Lausanne , 2007, pp. 621-625.

ABB, “Energy Storage Modules (ESM),” [Online]. Available: http://www.abb.com/product/db0003db004279/420d3ae414b13c1285257782004792b5.aspx. [Accessed: March 1, 2013].

IEC 60364-7-722, “Low Voltage Electrical Installations Part 7-722: Requirements for Special Installations or Locations - Supply of Electric Vehicle,” 2012.

K. Mohamed, Z.S. Ahmed, H. Samir, F.M. Karim, and A. Rabie, “Performance Analysis of a Voltage Source Converter (VSC) based HVDC Transmission System under Faulted Conditions,” Leonardo Journal of Sciences ISSN 1583-0233, Issue 15 (July-December), pp. 33- 46, 2009.

MathWorks, “VSC-Based HVDC Link,” [Online]. Available: http://www.mathworks.se/help/physmod/powersys/ug/vsc-based-hvdclink.html. [Accessed: March 1, 2013].

M. Bobrowska-Rafal, K. Rafal, G. Abad, and M. Jasinski, “Control of PWM Rectifier Under Grid Voltage Dips,” Bulletin of the Polish Academy of Sciences, vol. 57, no. 4, pp. 7, 2009.

M. Kamachi, H. Miyamoto, Y. Sano, “Development of Power Management System for Electric Vehicle “i-MiEV”,” in Power Electronics Conference (IPEC) 2010, 2010, IEEE, pp 2949-2955.

H. Makkonen, J. Partanen, P. Silventoinen, “Concept of Battery Charging and Discharging in Automotive Applications,” in Power Electronics Electrical Drives Automation and Motion (SPEEDAM) 2010 International Symposium, 2010, IEEE, pp 1664-1669.

M. Eberhard, M. Tarpenning, “The 21st Century Electric Car,” Tesla Motors Inc, July 2006, pp 10.