Optimization Control of Urban Rail Ground Supercapacitor Energy Storage …
With the rapid development of urban rail transit in China, the problems of increasing operating energy consumption and large voltage fluctuations of the traction network have become increasingly prominent. In recent years, energy storage-type regenerative braking energy absorption and utilization devices with the purpose of energy-saving and voltage …
Optimization on Converter Control Performance of Urban Rail Transit Wayside Supercapacitor Energy Storage …
In recent years, wayside supercapacitor energy storage systems have been increasingly used in urban rail transit. But it has been found in practical applications that the energy storage devices have a slow dynamic response in certain operating conditions. Therefore, this paper analyzes the factors affecting the dynamic response of the energy storage …
Braking energy recuperation for electric traction drive in urban rail transit network based on control supercapacitor energy storage …
The other is recovery of kinetic energy in deceleration process of electrified train by applying energy storage devices, or active rectifiers, reversible rectifiers placed to traction substations. The paper presents a regenerative braking energy recovery system based on super-capacitor energy storage system.
Inventions | Free Full-Text | Flywheel vs.
Electric rail transit systems use energy storage for different applications, including peak demand reduction, voltage …
[PDF] Flywheel vs. Supercapacitor as Wayside Energy Storage for Electric Rail Transit …
A comprehensive review of supercapacitors and flywheels is presented, with a focus on their roles in electric transit systems when used for energy saving, peak demand reduction, and voltage regulation. Energy storage technologies are developing rapidly, and their application in different industrial sectors is increasing considerably. …
Two-Stage Synthetic Optimization of Supercapacitor-Based Energy Storage Systems, Traction Power Parameters and Train Operation in Urban Rail Transit
The stationary supercapacitor energy storage system (SCESS) is one of effective approaches for the utilization of train''s regenerative braking energy in urban rail systems. In this paper, the capacity configuration of SCESSs, the no-load voltage of substation, the control of onboard braking resistors and train operation diagrams are considered …
Supercapacitors-based energy storage for urban mass transit …
The station type supercapacitor ESS is typically placed in the traction substation, as shown inFigure 1, mainly for the recovery of regenerative braking energy. The line type is set in the middle ...
Two-Stage Synthetic Optimization of Supercapacitor-Based Energy Storage Systems, Traction Power Parameters and Train Operation in Urban Rail Transit
Abstract: The stationary supercapacitor energy storage system (SCESS) is one of effective approaches for the utilization of train''s regenerative braking energy in urban rail …
Deep-Reinforcement-Learning-Based Energy Management …
In general, the supercapacitor energy storage system (SCESS) plays the role of an energy buffer, which releases energy when the train is accelerating, and recycles the …
Energies | Free Full-Text | A Dual-Stage Modeling and …
In this paper, a dual-stage modeling and optimization framework has been developed to obtain an optimal combination and size of wayside energy storage systems (WESSs) for application in DC rail …
(PDF) Control strategy for wayside supercapacitor energy storage system in railway transit …
Control strategy for wayside supercapacitor energy storage system in railway transit network June 2014 Journal of Modern Power Systems and Clean Energy 2(2):181-190
(PDF) Control Strategies with Dynamic Threshold Adjustment for Supercapacitor Energy Storage System Considering the Train …
Wayside supercapacitor based energy storage system (ESS) for urban rail transit can reuse the braking energy and reduce energy consumption. Most ESSs switch over from charging to discharging ...
Deep-Reinforcement-Learning-Based Energy Management Strategy for Supercapacitor Energy Storage Systems in Urban Rail Transit
tive braking energy, the supercapacitor-based energy storage system (SCESS), which consists of the DC/DC converter and supercapacitor modules, is installed in the traction substation, as shown in Fig. 1. The line-voltage-based control strategy is Fig. 1 Fig. 2.
Deep-Reinforcement-Learning-Based Energy Management …
Abstract: The modeling complexity of the traction power system and variation of traffic conditions bring challenges for the optimization of energy management …
Supercapacitors for electric rail transit systems
Several electric rail transportation systems currently use super capacitors for voltage enhancement, and improved recuperation of regenerative braking energy. In this paper, …
Optimal PV‐storage capacity planning for rail transit self‐consistent energy …
Scenario 4: Calculation of the rail transit self-consistent energy system operating costs during the planning year with PV and HESS. Scenario 5: Taking into account the impact of extreme weather, calculation of the …
Two-Stage Synthetic Optimization of Supercapacitor-Based Energy Storage Systems, Traction Power Parameters and Train Operation in Urban Rail Transit
8590 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 70, NO. 9, SEPTEMBER 2021 Two-Stage Synthetic Optimization of Supercapacitor-Based Energy Storage Systems, Traction Power Parameters and Train Operation in …
Design and Analysis of Energy Storage Converters for Regenerative Braking Energy Absorption in Urban Rail Transit
By the end of 2022, 55 cities nationwide had opened rail transit, with a total operational mileage of 10,291.95 km, increasing 1,085.17 km compared with that in 2021 [].The increasing scale of the urban rail network is also gradually making urban rail transit gradually ...
Supercapacitor Storage Design and Optimal Control of it for Energy Saving in Urban Rail Transit …
Semantic Scholar extracted view of "Supercapacitor Storage Design and Optimal Control of it for Energy Saving in Urban Rail Transit System" by E. Rahimi et al. Corpus ID: 54180946 Supercapacitor Storage Design and Optimal Control of it for Energy Saving in
Review of Application of Energy Storage Devices in Railway Transportation…
This paper reviews the application of energy storage devices used in railway systems for increasing the effectiveness of regenerative brakes. Three main storage devices are reviewed in this paper: batteries, supercapacitors and flywheels. Furthermore, two main challenges in application of energy storage systems are briefly discussed. …
Multi time scale management and coordination strategy for …
The application of stationary super capacitor energy storage systems (SCESS) is an effective way to recover the regenerative braking energy of urban rail …
Two-Stage Synthetic Optimization of Supercapacitor-Based Energy Storage Systems, Traction Power Parameters and Train Operation in Urban Rail Transit
This paper studies the control strategy of stationary supercapacitor energy storage system in the application of urban rail transit the beginning, a mathematical model including trains, energy ...
Control of urban rail transit equipped with ground-based supercapacitor for energy saving …
An energy storage system based on Supercapacitor (SC) for metro network regenerative braking energy is investigated. ... Urban rail transit has some advantages such as a large capacity, timing, safety, environmental protection and energy saving i.e. when to ...
Deep-Reinforcement-Learning-Based Energy Management Strategy for Supercapacitor Energy Storage Systems in Urban Rail Transit …
The study results show that it dynamically adjusts the voltage thresholds so as to better allocate the supercapacitor capacity along the time horizon. The energy-saving and voltage-stabilizing effects are significantly improved compared with the fixed-threshold strategy and genetic optimization, and demonstrating to be in close proximity to the …
Hierarchical Control and Full-Range Dynamic Performance Optimization of the Supercapacitor Energy Storage System in Urban Railway …
The installation of a stationary supercapacitor energy storage system in urban railway systems effectively improves the energy saving rate by means of recycling the train''s regenerative braking energy. In this paper, a hierarchical control strategy, which consists of an energy management layer and a converter control layer, is proposed. In …
Dynamic Threshold Adjustment Strategy of Supercapacitor Energy Storage System based on No-load Voltage Identification in Urban Rail Transit …
The stationary supercapacitor energy storage systems (SCESS) in urban rail transit systems can effectively recover the regenerative braking energy of the trains and reduce the fluctuation of the traction network voltage. Generally, the charge/discharge states of SCESS is determined by the voltage of the traction network; however, in actual operation, the …
Energies | Free Full-Text | Control Strategies with …
The present paper develops a new control strategy with variable threshold for wayside energy storage systems (ESSs), which uses the supercapacitor as the energy storage device. First, the paper …
Control strategy for wayside supercapacitor energy storage …
This paper discusses the control strategy for energy management in railway transit network with wayside (substation) supercapacitor (SC) energy storage system (ESS). …
Research on Energy Management Strategy of Supercapacitor Energy Storage System in Urban Rail Transit …
In order to reasonably control the charging/ discharging of the energy storage system and maximize the recovery of regenerative braking energy, this paper proposes a dynamic charging/discharging threshold strategy based on fuzzy logic control. The effects of train operation state, SOC and current of supercapacitors are considered comprehensively. …
Flywheel vs. Supercapacitor as Wayside Energy Storage for …
Electric rail transit systems use energy storage for different applications, including peak demand reduction, voltage regulation, and energy saving through …
Deep-Reinforcement-Learning-Based Energy Management Strategy for Supercapacitor Energy Storage Systems in Urban Rail Transit …
The study results show that the energy-saving and voltage-stabilizing effects are significantly improved compared with the fixed-threshold strategy and genetic optimization, and demonstrating to be in close proximity to the optimal benchmark deduced from dynamic programming. The modeling complexity of the traction power system and variation of …
