Convex optimization of charging infrastructure design and component sizing of a plug-in series HEV powertrain
Paper i proceeding, 2011

With the topic of plug-in HEV city buses, this paper studies the highly coupled optimization problem of finding the most cost efficient compromise between investing in onboard electric powertrain components and installing a charging infrastructure along the bus line. The paper describes how convex optimization can be used to find the optimal battery sizing for a series HEV with fixed engine and generator unit and a fixed charging infrastructure along the bus line. The novelty of the proposed optimization approach is that both the battery sizing and the energy management strategy are optimized simultaneously by solving a convex problem. In the optimization approach the power haracteristics of the engine-generator unit are approximated by a convex, second order polynomial, and the convex battery model assumes quadratic losses. The paper also presents an example for a specific bus line, showing the dependence between the optimal battery sizing and the number of charging stations on the bus line.

convex optimization

charging infrastructure

plug-in series powertrain

Författare

Nikolce Murgovski

Chalmers, Signaler och system, System- och reglerteknik, Mekatronik

Lars Johannesson

Chalmers, Signaler och system, System- och reglerteknik, Reglerteknik

Jonas Hellgren

Volvo

Bo Egardt

Chalmers, Signaler och system, System- och reglerteknik, Reglerteknik

Jonas Sjöberg

Chalmers, Signaler och system, System- och reglerteknik, Mekatronik

IFAC Proceedings Volumes (IFAC-PapersOnline)

14746670 (ISSN)

Vol. 18 13052-13057

Styrkeområden

Transport

Energi

Ämneskategorier

Farkostteknik

Reglerteknik

DOI

10.3182/20110828-6-IT-1002.01047

ISBN

978-390266193-7