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Tram energy storage quality control workflow

Supercapacitor and accelerating contact lines hybrid tram

Trams with energy storage are popular for their energy efficiency and reduced operational risk. An effective energy management strategy is optimized to enable a reasonable distribution of demand power among the storage elements, efficient use of energy as well as enhance the service life of the hybrid energy storage system (HESS).

Recent research progress and application of energy storage

The recovery of regenerative braking energy has attracted much attention of researchers. At present, the use methods for re-braking energy mainly include energy consumption type, energy feedback type, energy storage type [3], [4], [5], energy storage + energy feedback type [6].The energy consumption type has low cost, but it will cause

An On-board Energy Storage System for Catenary Free Operation of a Tram

An alternative is catenary free trams, driven by on-board energy storage system. Various energy storage solutions and trackside power delivery technologies are explained in [4], [5]. Lithium-ion

Integrated Optimization of Speed Profiles and Power Split for

Abstract: A tram with on-board hybrid energy storage systems based on batteries and supercapacitors is a new option for the urban trafﬁc system. This conﬁguration enables the tram to operate

Eco-driving control for hybrid electric trams on a signalised

Using on-board energy storage devices (ESD) can get a bonus from the recuperation of regenerative braking energy [2]. In addition, traction losses and motion resistance losses are related to speed profiles. Therefore, the eco-driving control problem for a tram with on-board ESD running on a signalised high-quality results, but the power

Optimal sizing of battery-supercapacitor energy storage systems

A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages of each ESE. The optimal sizing of HESS with a reasonable combination of different ESEs has become an important issue in improving energy management efficiency. Therefore, the optimal sizing

Position-Based T-S Fuzzy Power Management for Tram With Energy Storage

Energy storage systems (ESSs) play a significant role in performance improvement of future electric traction systems. This paper investigates an ESS based on supercapacitors for trams as a reliable technical solution with considerable energy saving potential. Operating the ESS onboard a tram brings the following benefits: reduction of peak power demands, decrease of power

A Hybrid Energy Management Strategy based on Line Prediction

This article focuses on the optimization of energy management strategy (EMS) for the tram equipped with on-board battery-supercapacitor hybrid energy storage system. The purposes of

Onboard energy storage in rail transport: Review of real applications

For the broader use of energy storage systems and reductions in energy consumption and its associated local environmental impacts, The tram has a hybrid storage system comprising two 150 kW fuel cell stacks, two battery packs of 20 kWh each, and two SC modules with a rated capacitance of 45 F each. ensure power quality at the AC side

Workflow Optimization: 6 Workflow Strategies for Your Team

ClickUp: Your All-In-One Workflow Management System. Workflows are never set in stone. Technology, projects, and people change over time, so workflow optimization should be a normal part of your role as a project manager. We know workflow optimization isn''t always easy, especially if you have a lot of projects on your plate.

Energy Management and Operation Control of Fuel Cells in

At the same time, Figs. 4, 5, 6 and 7 evaluate the effect on the voltage and current when a linear load (Chrome 6310A) is connected to the FC terminals. Initially, in the current mode, a load step of 10 A is accomplished on the FC terminals producing a voltage drop of 12 V and a delay time of 100 ms, as shown in Fig. 4. In a second test, a current step of 35 A

Measuring Clinical Workflow to Improve Quality and Safety

This chapter aims to illustrate the methodologies of time and motion research, the observation of clinical care activities in the field and its limits, strengths and opportunities. We discuss how such studies can be used to address questions related to the quality of care and to examine the relationships between clinical workflow and safety. Further, the chapter provides

Optimization of Energy Management Strategy and Sizing in

A tram''s hybrid power system mainly consists of an energy storage system and a motor system. The motor system is connected to the DC bus through the inverter, whose power is all from the hybrid

An optimization framework for planning wayside and on

Energy storage systems in tramway applications aim to increase energy efficiency through adequate energy planning and control. Typically, storage systems for tramway installations encompass batteries and super-capacitors Fig. 9 depicts the scheduling result for a characteristic catenary less tram with configuration 3 and pricing rate A. As

Workflow Optimization: 6 Workflow Strategies for

An On-board Energy Storage System for Catenary Free

Implementation of energy storage system on-board a tram allow the optimised recovery of braking energy and catenary free operation. Figure 3 shows the schematic which allows energy storage to be implemented on-board a tram. The braking resistor is installed in case the energy storage is unable to absorb braking energy. The energy flow

Improvement in MR quality control workflow and outcomes

To describe a custom‐built, web‐based MR Quality Control (QC) database, and to assess its impact on the QC workflow and outcomes in a large U.S. academic medical center. Methods The MR QC database was built with Microsoft Access 2010 and published on a Microsoft Sharepoint website owned and maintained by the authors'' institution.

Energy-efficient tram speed trajectory optimization considering

The tram typically adopts the form of semi-independent right of way, which is affected by the traffic light at junctions. The parking and wait time of the tram due to red lights will increase the

Integrated Optimization of Speed Profiles and Power Split for

Split for a Tram with Hybrid Energy Storage Systems on a Signalized Route Zhuang Xiao, Pengfei Sun, Qingyuan Wang *, Yuqing Zhu and Xiaoyun Feng FTS and TPS [13] are two typically signal control strategies in the tram systems. TPS refers that the signal time should be adjusted to guarantee the tram to pass intersections without any inﬂuence.

Technical and economic feasibility of increasing tram system

This research considers using the EV battery as energy storage for the tram network is a promising option that could lead to better economic feasibility. Streit, L., Talla, J. & Drabek, P. Economic comparison of basic energy storage system control strategies. Proceedings of the 16th International Conference on Mechatronics-Mechatronika 2014

Stochastic optimization of a stationary energy storage system

To realize economical operation of a catenary-free tramline, we propose installing a stationary energy storage system (SESS) to assist the electric grid for trams charging. As the tram operation may not be fully aligned with a predetermined timetable, an economical coordination of the electric grid and the SESS under uncertain charging demands is investigated.

Digital Twin Model Quality Optimization and Control Methods

Digital twin is an important emerging technology for digital transformation and intelligent upgrading. Digital twin models are the prerequisite for digital twin applications, and their quality directly affects the quality of digital twin services in monitoring, simulation, prediction, optimization, and other areas. However, researchers have paid insufficient attention to the

Hybrid tram energy management based on PMP

The simulation results show that the energy management strategy based on PMP can ensure the normal operation of tram. Keep the bus voltage of hybrid energy storage tram within a reasonable range. Compared with the energy management method based on rule control, the power consumption is reduced by 9%.

Position-Based T-S Fuzzy Power Management for Tram With Energy Storage

This paper investigates an ESS based on supercapacitors for trams as a reliable technical solution with considerable energy saving potential and proposes a position-based Takagi-Sugeno fuzzy (T-S fuzzy) PM for human-driven trams with an E SS. Energy storage systems (ESSs) play a significant role in performance improvement of future electric traction

Complete Guide to Workflow Optimization | Smartsheet

Workflow optimization is the use of strategies and tactics to increase efficiency of administrative, industrial, and other processes within an organization. Successful workflow optimization will reduce costs, incidence of errors, and time spent completing tasks. A workflow is an activity chain that breaks down the steps of various repeatable processes within an

On-Board and Wayside Energy Storage Devices Applications in

This paper investigates the benefits of using the on-board energy storage devices (OESD) and wayside energy storage devices (WESD) in light rail transportation (metro and tram) systems.

An optimal method of the energy consumption for fuel cell hybrid tram

It is particularly important to effectively and rationally control the SOC of the energy storage device in the fuel cell hybrid power system, provide sufficient capacity for the recovery of braking energy and ensure the stable operation of the system under the premise of meeting the vehicle power demand when the tram starts and accelerates

Tram energy storage quality control workflow [PDF]

6 FAQs about [Tram energy storage quality control workflow]

Why are trams with energy storage important?

Is there an equivalent consumption minimization strategy for a hybrid tram?

An equivalent consumption minimization strategy is proposed and verified for optimization. This paper describes a hybrid tram powered by a Proton Exchange Membrane (PEM) fuel cell (FC) stack supported by an energy storage system (ESS) composed of a Li-ion battery (LB) pack and an ultra-capacitor (UC) pack.

Can a tram's driving strategy reduce energy consumption and extend battery life?

However, trams may face expensive battery replacement costs due to battery degradation. Therefore, this paper proposes a multi-objective optimization method for the tram's driving strategy to reduce operational energy consumption and extend battery life. The method describes the optimization problem as second-order cone programming (SOCP).

What does a battery pack do on a tram?

As the sole power source of the tram, the battery pack can supply power to the traction system and absorb the regenerative braking energy during electric braking to recharge the energy storage system. The traction system mainly consists of the inverter, traction motor, gearbox, and axle.

How to optimize the driving strategy for a tram?

In recent years, optimizing the driving strategy for the tram has become a research hotspot. However, the existing driving strategy optimization often focuses only on energy saving while ignoring the possible adverse effects of the driving strategy on the battery life.

How to reduce the energy consumption of trams?

As tram utilization increases, the operational energy consumption of the tram system grows. Therefore, it is crucial to save energy and reduce the energy consumption of trams. One promising approach is to optimize the speed trajectory of the tram, also known as energy-efficient driving [1, 2].

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