Trams with energy storage are popular for their energy efficiency and reduced operational risk. An effective energy management strategy is optimized to enable a reasonable distribution of demand power among the. ••The energy management strategy optimization models based on single. With the development of energy storage and control technology and their good results in the field of electric vehicles, the technology of stored energy traction power supply has been. The energy management strategy of HESS is to reasonably allocate the work tasks of different energy storage components, mainly including rule-based energy management str. Efficient energy management is one of the key points for the energy storage system to utilize its power supply capacity and meet the operational needs of the tram. Based on the optimal pa. Guangzhou Haizhu tram is used to verify the performance of the developed method. Assume that the HESS has an optimal configuration of energy storage elements, Nbs = 221, Nbp.
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Trams with energy storage are popular for their energy efficiency and reduced operational risk. An effective energy management strategy is optimized to enable a reasonable distribution of demand power among the storage elements, efficient use of energy as well as enhance the service life of the hybrid energy storage system (HESS).
Why are lithium batteries used in energy storage trams?
Compared with the traditional overhead contact grid or third-rail power supply, energy storage trams equipped with lithium batteries have been developed rapidly because of their advantages of flexible railway laying and high regenerative braking energy utilization.
Is there an equivalent consumption minimization strategy for a hybrid tram?
An equivalent consumption minimization strategy is proposed and verified for optimization. This paper describes a hybrid tram powered by a Proton Exchange Membrane (PEM) fuel cell (FC) stack supported by an energy storage system (ESS) composed of a Li-ion battery (LB) pack and an ultra-capacitor (UC) pack.
How does a tram work?
The tram mainly comprises the energy storage system, traction system, and auxiliary system, and the specific structure is shown in Fig. 1. As the sole power source of the tram, the battery pack can supply power to the traction system and absorb the regenerative braking energy during electric braking to recharge the energy storage system.
Can a tram's driving strategy reduce energy consumption and extend battery life?
However, trams may face expensive battery replacement costs due to battery degradation. Therefore, this paper proposes a multi-objective optimization method for the tram's driving strategy to reduce operational energy consumption and extend battery life. The method describes the optimization problem as second-order cone programming (SOCP).
How energy management strategy is used in Guangzhou Haizhu trams?
An improved PSO algorithm based on competitive mechanism is developed to obtain the optimal energy management strategy. The obtained energy management strategy has better effects in energy reduction with application in Guangzhou Haizhu tram. Trams with energy storage are popular for their energy efficiency and reduced operational risk.