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Battery Xiangtan electric locomotives employ an energy consumption braking principle during high-speed operation. In this process, the rotor of the traction motor rotates at an actual speed higher
Energy management strategy to optimise regenerative braking in a hybrid dual-mode locomotive. ISSN 2042-9738. Received on 14th May 2020 Revised 15th August 2020 Accepted on 18th August 2020. E-First on 23rd November 2020 doi: 10.1049/iet-est.2020.0070 Diana Sofía Mendoza1, Javier Solano1.
Regenerative braking is a technology that can recover the mechanical energy during a locomotive braking as electricity. In some cases, over a third of the total traction energy, even a half, can be recovered using this method. After principles (1), (2), and (3), if there is traction power needed in some power sections, the previously stored
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 Supercapacitor Energy Storage System manufactured by American Maglev Technology is an embedded system that captures, stores, and discharges 0.7kWh of energy for use in commercial transit applications. This system consists of double-layer supercapacitors, along with the required conditioning choppers and auxiliary devices,
Design and Modeling of Diesel-Electric Hybrid Shunting Locomotive 659 Table 2 Battery system configuration Performance parameters Power type LTO Battery price (RMB/kWh) 12,000 Peak current under traction (A) 1598.1 Peak current under traction (C) 7 Peak
Figure 4. Energy transfer in the GTW diesel - electric locomotive 8 – Proposed solution for increasing the overall energy efficiency The principle of a diesel - electric locomotive is given in Fig. 5. The principal energy loss is due to the dissipation of braking energy
The results show that the proposed energy storage scheme and its control strategy can effectively recover the regenerative braking energy, reduce the grid
Abstract—The braking energy in diesel-electric locomo-tives is typically wasted into resistors. A more energy-efficient way is to store and recycle such energy. Thus, this paper proposes a
During t ∈ (0, 0.1) s, the value of the RBE is 4 MV, the ESS is idle, and all the energy returns to the power grid through the TT; during t ∈ (0.1, 0.2) s, the value of the RBE is 4 MW, and the system is in
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
To solve the negative sequence (NS) problem and enhance the regenerative braking energy (RBE) utilisation in an electrified railway, a novel energy storage traction power supply system
General principle The most common form of regenerative brake involves an electric motor functioning as an electric generator. In electric railways, the electricity generated is fed back into the traction power supply
A regenerative braking energy recovery strategy based on pontryagin''s minimum principle (PMP) for Fuel Cell (FC)/Supercapacitor (SC) hybrid power locomotive was proposed in
A regenerative braking energy recovery strategy based on pontryagin''s minimum principle (PMP) for Fuel Cell (FC)/Supercapacitor (SC) hybrid power locomotive was proposed in this paper. In the proposed strategy, the dynamic coefficient λ is used in PMP during the traction state of the locomotive, which makes system transient
Regenerative braking energy (RBE) recovery is a simple and efficient way to reduce energy consumption, which cannot influence the operation of trains and service quality. Regenerative
The above problems can be effectively solved if the regenerative braking energy is fully utilized by traction trains. At
The regenerative braking energy utilization system is modeled by analyzing the braking process of electric locomotive. The instantaneous absorption reference powers of the
Battery Xiangtan electric locomotives employ an energy consumption braking principle during high-speed operation. In this process, the rotor of the traction motor rotates at an actual speed higher
This paper proposed an EMS to define power distribution references in a dual-mode locomotive equipped with a FC system, a SC system, batteries, a braking resistor, and intermittent access to a DC electrified overhead line. The solution proposed
In this paper, a multi-port system is proposed to recover the braking energy in a diesel-electric locomotive, using it to recharge a battery-supercapacitor based Energy Storage System (ESS) and to supply the locomotive auxiliary loads. To manage the system power flow, a single DC bus voltage controller generates current references for each converter.
In addition, the regenerative braking energy (RBE) generated by locomotives will be injected to the overhead line, impacting the power flow of ERSMS as well [10,11].
3 Power System Design. By comparing the operating conditions and related data of the internal combustion shunting locomotives of Dongfeng series, the power system of the 3000 hp diesel- electric hybrid shunting locomotive is configured. Diesel generator sets Converter Inverter Traction motor Onboard energy storage system DC/DC converter
Locomotives operating in the traction mode use less electrical energy from traction substation I and substation II because a part of energy is supplied by the energy storage batteries. These batteries do not require a separate voltage source for charging as they are charged by using the kinetic energy of the trains which emerges
Abstract—The braking energy in diesel-electric locomo-tives is typically wasted into resistors. A more energy-efficient way is to store and recycle such energy. Thus, this paper proposes a
When regenerative braking is employed, the current in the electric motors is reversed, slowing down the train. At the same time, the electro motors generate electricity to be returned to the power distribution system. Regenerative breaking is a mature technology. It can be more easily applied to AC powered trains than to DC powered systems.
Investigating the feasibility of braking energy utilisation on diesel electric locomotives for South African Railway Duty Cycles KRK Boshoff 24018368 B.Eng. Mechanical Dissertation submitted in partial fulfillment of the requirements for the degree Magister Scientiae in Mechanical and Nuclear
Fig. 5. Diagram of locomotive energy saving structure 5. Possibilities of new locomotives regenerative braking Locomotive electric braking system may be divided into dynamic, and regenerative. Thus, the dynamic braking energy is converted into heat and dissipated from the system. In other words, electric energy generated is the typically wasted.
Electric locomotive Škoda ChS4-109. The Moscow–Odesa train in Vinnytsia railway station. The ČSD Class E 499.3 The Siemens ES64U4 is the current confirmed holder as the fastest electric locomotive at 357 km/h (222 mph) in 2006. A British Rail Class 91 at London King''s Cross station.. An electric locomotive is a locomotive powered by
A regenerative braking energy recovery strategy based on pontryagin''s minimum principle (PMP) for Fuel Cell (FC)/Supercapacitor (SC) hybrid power locomotive was proposed in this paper.
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