Bilevel optimization for bunching mitigation and eco-driving of electric bus lines
Artikel i vetenskaplig tidskrift, 2021

The problems of bus bunching mitigation and of the energy management of groups of vehicles are traditionally treated separately in the literature, and formulated in two different frameworks. The present work bridges this gap by formulating the optimal control problem of the bus line eco-driving and regularity control as a smooth, multi-objective nonlinear program. Since this nonlinear program only has few coupling variables, it is shown how it can be solved in parallel aboard each bus such that only a marginal amount of computations need to be carried out centrally. This leverages the decentralized structure of a bus line by enabling parallel computations and reducing the communication loads between the buses, which makes the problem resolution scalable in terms of the number of buses. Closed-loop control is then achieved by embedding this procedure in a model predictive control. Stochastic simulations based on real passengers and travel times data are realized for several scenarios with different levels of bunching for a line of electric buses. Our method achieves fast recoveries to regular headways as well as energy savings of up to 9.3% when compared with traditional holding or speed control baselines.

nonlinear programming.

Bussystem

electric buses

optimal control

bus lines

Bus bunching

Författare

Rémi Lacombe

Chalmers, Elektroteknik, System- och reglerteknik, Reglerteknik

Sebastien Gros

Chalmers, Elektroteknik, System- och reglerteknik, Reglerteknik

Nikolce Murgovski

Chalmers, Elektroteknik, System- och reglerteknik, Mekatronik

Balázs Adam Kulcsár

Chalmers, Elektroteknik, System- och reglerteknik, Reglerteknik

IEEE Transactions on Intelligent Transportation Systems

1524-9050 (ISSN)

Optimal energihantering för nätverk av elektrifierade bussar (OPNET)

Energimyndigheten (46365-1), 2018-10-01 -- 2021-12-31.

Styrkeområden

Transport

Ämneskategorier

Transportteknik och logistik

Kommunikationssystem

Reglerteknik

Mer information

Senast uppdaterat

2021-06-30