Benefits of hybridisation of diesel driven rail vehicles: Energy management strategies and life-cycle costs appraisal

Meinert, M.; Melzer, Michael; Kamburow, C; Palacín, Roberto; Leska, Maik; Aschemann, Harald

doi:10.1016/j.apenergy.2015.05.051

Cited by 22 publications

(13 citation statements)

References 6 publications

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“…The result of research work on hybrid concepts for diesel multiple units presented by Hillmansen et al (2009) calculates a potential for the reduction in the fuel consumption of up to 25% on a fixed track. Beside the system architecture with its corresponding components and ESS, the operating strategy plays an important role regarding the fuel consumption of a hybrid vehicle (see Meinert et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Comparative Calculation of the Fuel–Optimal Operating Strategy for Diesel Hybrid Railway Vehicles

Leska

Aschemann

Melzer

et al. 2017

International Journal of Applied Mathematics and Computer Science

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In contrast to road-based traffic, the track as well as the corresponding duty cycle for railways are known beforehand, which represents a great advantage during the development of operating strategies for hybrid vehicles. Hence the benefits of hybrid vehicles regarding the fuel consumption can be exploited by means of an off-line optimisation. In this article, the fuel-optimal operating strategy is calculated for one specified track using two hybrid railway vehicles with different kinds of energy storage systems: on the one hand, a lithium-ion battery (high-energy storage) and, on the other, a double layer capacitor (high-power storage). For this purpose, control-oriented simulation models are developed for each architecture addressing the main effects contributing to the longitudinal dynamics of the power train. Based on these simulation models, the fuel-optimal operating strategy is calculated by two different approaches: Bellman’s dynamic programming, a wellknown approach in this field, and an innovative sensitivity-based optimisation.

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Section: Introductionmentioning

confidence: 99%

Comparative Calculation of the Fuel–Optimal Operating Strategy for Diesel Hybrid Railway Vehicles

Leska

Aschemann

Melzer

et al. 2017

International Journal of Applied Mathematics and Computer Science

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“…Despite the trend where the share of drives relying on combustion engines in the total number of rail vehicles continues to decrease, there is a tendency to replace the conventional combustion systems with hybrid systems [5,15]. Meinert et al [16] proposed the use of energy storage systems (ESS) in rail vehicles, such as: hydrostatic systems, batteries, flywheels and double-layer capacitors (DLC). The energy management strategy is focused on reducing fuel consumption and minimizing the toxic exhaust emissions.…”

Section: Energy Storage Systems In Rail Transport Vehiclesmentioning

confidence: 99%

Modern drive systems of rail vehicles

Andrzejewski¹,

Pielecha²,

Merkisz³

et al. 2019

Combustion Engines

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Rail vehicles are one of the sources of environmental pollution in the transport sector. Therefore, it is necessary to equip these vehi-cles with modern drive systems. This article concerns the issues of contemporary and future-oriented solutions of drive systems used in rail vehicles. The article analyzes energy storage possibilities including: electrochemical, mechanical and hydraulic accumulators. The conducted analyzes have taken into account the importance of how frequently they charge up, which dictates their possible applications. Characteristics of hybrid drive systems were presented, with particular emphasis on parallel systems of: hydrostatic, flywheels and electrochemical batteries. The analysis of energy flow control strategies in hybrid drive systems of railway vehicles has been made. In the summary, a solution was chosen that resulted in high conversion efficiency of the energy extracted from the vehicles wheels.

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“…Soriano et al 21 designed a hydraulic hybrid power system suitable for the actual driving conditions of garbage trucks to reduce vehicle energy consumption. There are many researches on parallel hybrid, 22 regenerative braking, 23,24 and energy management [25][26][27] of hydraulic hybrid power equipment applied in road, railway, and off-highway. Most of the above research contents focus on the analysis of traditional hydrostatic transmission systems.…”

Section: Introductionmentioning

confidence: 99%

Research on power coupling characteristics and acceleration strategy of electro-hydrostatic hydraulic hybrid power system

Liu

Chen

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part I:

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Aiming at the adverse effect of the peak power of the electric motor of the battery-powered rail vehicles on the battery life and the driving range when starting or accelerating, a new type of electro-hydrostatic hydraulic hybrid powertrain is designed. This article proposes a novel power form that assists the vehicle to start or accelerate through two power coupling methods: torque coupling circuit and flow rate coupling circuit which have good power performance and energy-saving performance. A mathematical model for power coupling of hybrid power system is constructed, and the effects of key parameters of the system and different power coupling ratios on electric power consumption and power coupling characteristics are studied. Based on the simulation and test platform, the power coupling characteristics of the electro-hydrostatic hydraulic hybrid powertrain are simulated and experimentally researched. The results show that compared with the traditional electro-hydrostatic series system, the novel electro-hydrostatic hydraulic hybrid powertrain can effectively avoid the impact of electric motor power and reduce the power consumption. Based on the characteristics of power coupling, the acceleration strategy of minimum peak power is studied to control the key components of the power coupling process. Simulation and experimental results show that under the control of the new acceleration strategy, the electro-hydrostatic hydraulic hybrid powertrain has good electro-hydraulic power coupling characteristics. The electric power of the power system is greatly reduced during acceleration, which has better energy-saving characteristics and value for engineering applications.

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Benefits of hybridisation of diesel driven rail vehicles: Energy management strategies and life-cycle costs appraisal

Cited by 22 publications

References 6 publications

Comparative Calculation of the Fuel–Optimal Operating Strategy for Diesel Hybrid Railway Vehicles

Comparative Calculation of the Fuel–Optimal Operating Strategy for Diesel Hybrid Railway Vehicles

Modern drive systems of rail vehicles

Research on power coupling characteristics and acceleration strategy of electro-hydrostatic hydraulic hybrid power system

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