Reconfigurable Line-Side Converter for DC Voltage Matching and Ripple Suppression in Multisystem Locomotives

Xiang, Jinwen; Xu, Jiazhu; Wang, Hongliang; Chang, Li; Cui, Guiping; Peng, Yanjian

doi:10.1109/tpel.2020.3026682

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…When the RB power is greater than the traction power (−P La > P Lb ), as shown in Figure 7b, most of the traction power is supplied by the RBPC, and no or very little is supplied by TSS2 which ensures no RB power flows to TSS2. The active power of the two TSSs is calculated in the dq coordinate and can be expressed as Equation (8).…”

Section: Rb Energy Utilisation Schemementioning

confidence: 99%

“…Due to the advantages in terms of heavy traction power, high power factor, low harmonic content, and regenerative braking (RB) [6][7][8][9], AC drive electric trains, such as AC drive locomotives and electrical multiple units (EMUs), are gradually becoming the main trains in China's electrified railways. In electrified railways, the traction load accounts for 50% or even more than 80% of overall electricity usage [10].…”

Section: Introductionmentioning

confidence: 99%

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Utilisation of regenerative braking energy in adjacent power sections of railway systems

Wu,

2023

IET Electric Power Appl

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Huge regenerative braking (RB) energy is generated in the AC traction power supply system (TPSS) which is related to safe operation and comprehensive energy utilisation. For the RB energy utilisation, the authors propose a railway regenerative braking power conditioner (RBPC) with no energy storage system (ESS) integrated which is located at the end of the power sections between adjacent traction substations (TSSs). First, the RB characteristics are studied based on a large amount of measured data, and the load power states are classified according to the load powers of adjacent power sections. Then, the RB energy utilisation scheme, transferring the RB power to the adjacent power section where traction power exists, has been studied. Moreover, a dual closed‐loop control strategy for a back‐to‐back converter is adopted to achieve RB energy utilisation. Finally, a case study and an engineering application are carried out. The results have verified the feasibility of this method, which can illustrate that more than half of the RB energy can be mutually utilised in adjacent power sections.

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Section: Rb Energy Utilisation Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Utilisation of regenerative braking energy in adjacent power sections of railway systems

Wu,

2023

IET Electric Power Appl

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“…Alternatively, the battery can be directly connected to the dc-bus of the traction inverter, while the overhead line is connected through a dc/dc converter [6]. This configuration offers advantages if the overhead line has a voltage different from the dc-bus, or for LRVs travelling on sections at different voltage levels [7].…”

mentioning

confidence: 99%

Design and Control of Hybrid Electric Light Rail Vehicles With Open Ended Winding Machines

De Simone,

Carmeli,

D'Arco

et al. 2024

IEEE Open J. Veh. Technol.

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Light railways are a low carbon emission form of transport, but it is often difficult to electrify tracks in central urban areas. This limitation can be avoided by integrating an on-board battery storage connected to the dc bus of the traction inverter with a boost dc/dc converter. However, the boost converter requires a bulky inductor and introduces additional power losses that are undesirable. This paper proposes to replace the standard induction motor with an open ended winding induction motor connected at one end to the overhead line with the traction inverter and to the other end to a battery with a second inverter in order to reduce the power losses of the traction drive. The paper addresses design and control aspects for light rail vehicles with open ended winding induction machines when the power supply is partly from the overhead line and partly from the on board battery. Moreover, the paper studies in detail the hybrid operations of the traction system i.e. when the overhead line charges the battery during coasting or at the stops. Finally, numerical simulations for a real use case are presented to quantify the reduction of power losses in comparison to the standard solution.

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An FCS-MPC-based open-circuit and current sensor fault diagnosis method for traction inverters with two current sensors

Tao

Peng

Yang

et al. 2023

International Journal of Electrical Power & Energy Systems

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Reconfigurable Line-Side Converter for DC Voltage Matching and Ripple Suppression in Multisystem Locomotives

Cited by 10 publications

References 31 publications

Utilisation of regenerative braking energy in adjacent power sections of railway systems

Utilisation of regenerative braking energy in adjacent power sections of railway systems

Design and Control of Hybrid Electric Light Rail Vehicles With Open Ended Winding Machines

An FCS-MPC-based open-circuit and current sensor fault diagnosis method for traction inverters with two current sensors

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