Title: Tool for energy storage system synthesis

Authors: Jonas Hellgren, Haimin Zhang

Addresses: Volvo Technology AB, Gotaverksgatan 10, 40508 Goteborg, Sweden. ' CEC Huada Electronic Design Co., Ltd. (HED), 1# Gaojiayuan, Chaoyang District, 100015 Beijing, China

Abstract: An essential part of Hybrid Electric Vehicles (HEVs) and Electric Vehicles (EVs) is the Energy Storage System (ESS). This paper describes a tool, named Tool for Energy Storage System Synthesis (TESSS), that automatically transforms ESS demands to cost-effective ESS design candidates. The following statements characterise the tool: 1) mathematical modelling and optimisation are essential ingredients; the handled ESS technologies are batteries of various types, supercapacitors and combined ESSs. Combined ESSs include both battery and supercapacitor cells. 2) the optimal design is pointed out by a cost function and requirements. The cost function includes investment cost, wear cost and costs due to energy losses. Examples of requirements are minimal power, maximum package volume and voltage. 3) TESSS is user friendly and extremely computation efficient owing to its compiled C code. To exemplify the practical use of the tool, two case studies are also presented in this paper.

Keywords: energy storage systems; ESS; electric propulsion; hybrid electric vehicles; HEVs; hybrid vehicles; mathematical modelling; optimisation; batteries; supercapacitors; cost function.

DOI: 10.1504/IJEHV.2009.029036

International Journal of Electric and Hybrid Vehicles, 2009 Vol.2 No.2, pp.98 - 114

Received: 09 Dec 2008
Accepted: 21 Feb 2009

Published online: 29 Oct 2009 *

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