Online catenary anti‐icing technique for electric railways employing direct feeding systems

Guo, Lan-Ping; Zhou, Lijun; Chen, Minwu; Huang, Wenxun

doi:10.1049/iet-gtd.2015.1273

Cited by 13 publications

(5 citation statements)

References 18 publications

(10 reference statements)

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“…Ice accumulation on structural surfaces impacts a broad spectrum of industries ranging from aircraft, , power transmission lines, , and wind turbine blades . Reduction of ice accumulation is highly crucial, and ice adhesion force is one of the critical parameters.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Ice Adhesion Using Surface Acoustic Waves: Nanoscale Vibration and Interface Heating Effects

Zeng

Yan

et al. 2021

Langmuir

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Ice accumulation causes great risks to aircraft, electric power lines, and wind-turbine blades. For the ice accumulation on structural surfaces, ice adhesion force is a crucial factor, which generally has two main sources, for exampple, electrostatic force and mechanical interlocking. Herein, we present that surface acoustic waves (SAWs) can be applied to minimize ice adhesion by simultaneously reducing electrostatic force and mechanical interlocking, and generating interface heating effect. A theoretical model of ice adhesion considering the effect of SAWs is first established. Experimental studies proved that the combination of nanoscale vibration and interface heating effects lead to the reduction of ice adhesion on the substrate. With the increase of SAW power, the electrostatic force decreases due to the increase of dipole spacings, which is mainly attributed to the SAW induced nanoscale surface vibration. The interface heating effect leads to the transition of the locally interfacial contact phase from solid–solid to solid–liquid, hence reducing the mechanical interlocking of ice. This study presents a strategy of using SAWs device for ice adhesion reduction, and results show a considerable potential for application in deicing.

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Section: Introductionmentioning

confidence: 99%

Reduction of Ice Adhesion Using Surface Acoustic Waves: Nanoscale Vibration and Interface Heating Effects

Zeng

Yan

et al. 2021

Langmuir

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“…The regenerative energy utilisation is extremely low, which can cause some serious problems including over‐voltage in catenary, larger unbalanced current in power grid and higher installed capacity of traction transformer (TT) [2]. Meanwhile, frequent catenary icing in southern China has great impacts on normal and safe operation of electric trains, which may cause serve train delays [3]. In addition, new types of high power electric multiple units have been applied in main lines as well as a large number of existing DC powered locomotives, which may worsen the power quality of the three‐phase industrial power grid [4].…”

Section: Introductionmentioning

confidence: 99%

Flexible traction power system adopting energy optimisation controller for AC‐fed railway

et al. 2017

Self Cite

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A flexible traction power system is proposed for AC-fed railway due to its benefits in power flow optimisation, online catenary anti-icing and power quality improvement. In this system, an energy optimisation controller in section post is adopted to provide reactive anti-icing current and control the energy flow in regenerative braking of the locomotives. The energy optimisation controller in traction substations is adopted to eliminate three-phase unbalance in power grid and perform reactive power compensation. The mathematic model of the proposed system is built based on a power transformation analysis and the validity of compensation algorithms is verified by case studies.

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“…According to existing studies, we know that rail failure is related to many factors, such as human factors [25] (e. g., traffic flow, etc.) and external factors [26], [27] (e. g., rail aging conditions, average temperature and relative humidity, etc.). Successful fault location is a prerequisite for subsequent emergency repair work, which is mainly based on historical data and predicted data.…”

Section: Fault Location Designmentioning

confidence: 99%

Integrative Design of an Emergency Resource Predicting-Scheduling-Repairing Method for Rail Track Faults

Yuan

Zhang

et al. 2019

IEEE Access

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To solve the problem of track failure in railway system, integrative design of an emergency resource forecasting-scheduling-repairing method is proposed in this paper. In the current railway repair process, resource dispatching centers dispatch transport resources to the fault point for the repair work. In order to optimize this process, a hybrid prediction method consisting of radial basis function neuron network (RBFNN) and expert prediction method to rationally predict repair resources is proposed. In order to optimize the resource transportation path and reduce the transportation cost, a bi-objective resource scheduling method is presented in this paper. A fuzzy evaluation method combining with the prospect theory to optimally select the repairing for the repair work is formulated. Finally, experiment studies are carried out and the results illustrate the effectiveness of the proposed method.

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Online catenary anti‐icing technique for electric railways employing direct feeding systems

Cited by 13 publications

References 18 publications

Reduction of Ice Adhesion Using Surface Acoustic Waves: Nanoscale Vibration and Interface Heating Effects

Reduction of Ice Adhesion Using Surface Acoustic Waves: Nanoscale Vibration and Interface Heating Effects

Flexible traction power system adopting energy optimisation controller for AC‐fed railway

Integrative Design of an Emergency Resource Predicting-Scheduling-Repairing Method for Rail Track Faults

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