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It has therefore received considerable attention. The authors in [25, 26] proposed an RPC system topology based on supercapacitor energy storage and investigated its control strategy.However, most ...
By integrating an energy storage unit into the power plant, the locomotive traction drive becomes hybridised, consuming less fuel during transients and idling. A typical diesel-electric propulsion ...
This paper presents a modified power supply system based on the current alternating current (AC)-fed railways with neutral zones that can further improve the eco-friendliness and smart level of railways. …
US20020174798A1 US10/033,347 US3334701A US2002174798A1 US 20020174798 A1 US20020174798 A1 US 20020174798A1 US 3334701 A US3334701 A US 3334701A US 2002174798 A1 US2002174798 A1 US
To support planning of alternative fuel technology (e.g., battery-electric locomotives) deployment for decarbonizing non-electrified freight rail, we develop a convex optimization formulation with a closed-form solution to determine the optimal number of energy storage ...
In this paper, we focus on a valuably consequential idea to design an energy storage system for electric locomotive which only know two requirements, required energy and required the minimum voltage. This paper is the design of batteries and supercapacitors that suitable for the system. First, select the type of batteries suitable for use and design for …
This paper presents an innovative approach suggesting the use of battery-electric locomotives (BELs) as mobile energy reserve tools. The BEL carries separable battery railcars with enhanced storage capacity that offers a flexible and far-reaching …
This article proposes a multiport power conversion system as the core of a hybrid energy storage system, based on Lithium-ion (Li-ion) batteries and supercapacitors (SCs), …
PDF | Often, available power from an in-vehicle energy storage system is governed by thermal limitations. Modeling of battery pack thermal response is... | Find, read and cite all ...
It can be seen from Figure 13 that the peak power of the electric locomotive braking was 5MW, and the generated feedback energy generated was about 16.7 kW · h. For the synergistic absorption of feedback energy …
In [26], the flywheel storage mechanism was employed to replace one of the dieselelectric locomotives as the intermediate energy power plant for three diesel-electric locomotives. ...
The storage devices featured 600 Wh and 180 kW of rated energy and power, with a total weight of 430 kg and consequent specific energy and power of 1.4 Wh/kg and 418 W/kg, respectively. …
The high-energy device can be used as an energy supplier to meet long-term energy needs, while the high-power device can be used as a power supplier to …
Battery-electric locomotives with lithium-polymer storage batteries are proposed for shunting operations on electrified railroad lines considering experience of energy storage devices applications. Main parameters of traction drive are calculated and its functional scheme is shown in the article. Advantages of battery-electric over diesel locomotives …
A more energy-efficient way is to store and recycle such energy. Thus, this paper proposes a multiport power conversion system as the core of a hybrid energy storage system (HESS), based...
The braking energy in diesel-electric locomotives is typically wasted into resistors. A more energy-efficient way is to store and recycle such energy. Thus, this article proposes a multiport power conversion system as the core of a hybrid energy storage system, based on Lithium-ion (Li-ion) batteries and supercapacitors (SCs). In such configuration, SCs …
The aim of this work is to determine the on-board energy storage system parameters during the operation of the electric locomotive with limitation of the power consumed from the traction network.
It was established, that the use of an on-board energy storage system on an electric locomotive provides a reduction of energy consumption by approximately 10% and it is practically independent of the energy storage power. The maximum power consumed from the traction network is reduced during the exploitation the on-board …
The conceptual design of a hybrid locomotive for heavy traction is given in [], where different electrical energy storage systems, such as electrochemical batteries and ultracapacitors, are analyzed and …
With the increasing demand for the energy density of battery system in railway vehicles, the ambient temperature of the battery system is increased. This means that the heat dissipation efficiency and …
Mayet (2013) found that by shifting the engine load demand at higher load percentages and thus higher efficiency, additional energy savings can be done by incorporating stored energy. (Mayet, et ...
ABSTRACT This paper modelled flywheel and battery energy storage systems for heavy-haul locomotives. Three heavy-haul trains with their traction power provided by diesel, diesel-flywheel, and diesel-battery locomotive consists were simulated on an existing railway. The diesel, flywheel, and battery locomotives have traction …
The method of improving a two-section mainline diesel locomotive by using energy storage in the traction system is considered. A mathematical model was developed to study the movement of a diesel locomotive based on the recommendations and provisions of the theory of locomotive traction. For this purpose, the movement of a …
power-to-weight ratio then their diesel-based counterparts [8]. Another advantage of the electric locomotive is its ability to recover some portion of the kinetic energy of longitu-dinal motion ...
To quantify the efficiency of energy recovery, one can use the value of energy Wp, obtained for this area, and an indicator of its efficiency (2) a = g W p W Π = W p N + M Δ h, which represents the acceleration useful in the recovery process and measured in Kp =a/g kWh/ (t.m) or m/s 2. Relation is the efficiency of energy recovery.
An energy storage system was theoretically proposed by Agenjos et al. (2009) for a diesel-electric locomotives in Spain to achieve better efficiency without impairing the locomotive''s dynamic ...
RPS has two parallel battery locomotive programs, one based on lead-carbon batteries in a R&D locomotive inherited from a Class 1 railroad, and a second program based on repurposed ''2 nd life'' lithium ion batteries from light duty electric vehicles. RPS is also developing electric zero emission motive power based on batteries, electronics ...
ENERGY STORAGE IN RAILWAYS. Supercapacitors (SC), flywheels and Supermagnetics Energy Storage (SMES) are new components that can be used for short-duration energy storage [3],[4]. For example, the University of Texas at Austin Center for Electromechanics (UT-CEM) is currently developing an Advanced Locomotive Propulsion System (ALPS) …
Wabtec says its next-generation battery locomotive will nearly triple its energy storage capacity to 7 megawatt-hours, nearly 100 times the capacity of a Tesla Model 3. That could cut emissions by ...
Abstract: In this paper, we focus on a valuably consequential idea to design an energy storage system for electric locomotive which only know two requirements, required …
In this paper, an energy storage-type railway power quality control system (ES-PQCS) is given to improve the power quality of traction power supply system (TPSS) and recover considerable braking energy generated by electric locomotive. First, the topological structure and mathematical model of the system are analyzed, revealing the relationship …
The battery is the electric energy storage unit of locomotive and its vehicles, which is the key component to ensure the start of the diesel engine, auxiliary circuit operation, and locomotive standby …
It is assumed that the battery-electric locomotive can be realized by retrofitting a sufficiently-sized battery energy storage system utilized onto the base undercarriage of a decommissioned conventional 1.6 MW/103 ton diesel-electric locomotive [38], i.e. by
A backward-looking quasi-static model of a battery-electric locomotive is proposed, based on the undercarriage of a decommissioned conventional diesel-electric …
The power of the energy storage device and its working energy capacity is determined. Based on the results of the study, it is justified to limit the current consumed by the electric locomotive of ...
Hybrid energy locomotive electrical power storage system United States Patent Application 20020174798 Kind Code: A1 Abstract: A hybrid energy locomotive system having an energy storage and regeneration system. In …
Adapting and providing solution to this reality, CAF Power & Automation has developed multi-system electric traction converters. Applying the modularity concepts in the design stage, our traction converters can be adapted to various existing catenary voltages, i.e. both to AC catenaries (25kV, 15kV) and DC catenaries (3kV, 1.5kV).
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