Efficiency of mechanical energy recovery from a tram by different input conditions

Kubín, Jiri; Richter, Ales

doi:10.1109/epepemc.2012.6397229

Cited by 9 publications

(4 citation statements)

References 1 publication

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“…the tram in Liberec, Czech Republic-through a mechanical flywheel with a motor generator and its connection to the main bus bar in substation [88]; -the tramline in Bergamo, Italy: the stationary systems are the best choice from the cost/benefit point of view; the connection to the line by a DC/DC converter allows better managing the storage systems and the high power lithium batteries appear much more competitive than the supercapacitors [78]; -the high-speed line from Florence to Rome ("Direttissima" line), for which the use of stationary and onboard batteries and supercapacitors has been considered, leading to the conclusion that the storage systems based on lithium batteries, either stationary or onboard, are suitable in terms of cost-effectiveness [42].…”

Section: Wayside Storage Systemsmentioning

confidence: 99%

A Review of the Energy Efficiency Improvement in DC Railway Systems

Popescu

Bitoleanu

2019

Energies

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This study is focused on the topical issue of increasing the energy efficiency in DC railway systems, in the context of global concerns for reducing the CO2 emissions by minimizing the energy consumption and energy loss. The main achievements in this complex issue are synthesized and discussed in a comprehensive review, emphasizing the implementation and application of the existing solutions on concrete case studies. Thus, all specific subtopics related to the energy efficiency are covered, starting with power quality conditioning and continuing with the recovery of braking energy, of which a large part is lost in the classic DC-traction substations. The solutions of onboard and wayside storage systems for the braking energy are discussed and compared, and practical examples are given. Then, the achievements in transforming the existing DC-traction substations in reversible substations with capabilities of power quality improvement are systematically reviewed by illustrating the main results of recent research on this topic. They include the equipment available on the market and solutions validated through implementations on experimental models. Through the results of this extensive review, useful reference and support are provided for the research and development focused on energy efficient traction systems.

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Section: Wayside Storage Systemsmentioning

confidence: 99%

A Review of the Energy Efficiency Improvement in DC Railway Systems

Popescu

Bitoleanu

2019

Energies

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“…If the tram reduces its speed from v1 = 30 km/h to value v2 = 0, theoretical amount of regenerated energy can be calculated as in [17]:…”

Section: Ess Scalingmentioning

confidence: 99%

“…Such speed restrictions are also more and more introduced by Riga City Council to provide the safety of pedestrians and cyclists on narrow streets. The kinetic energy of the tram at the time of braking is calculated in [17]:…”

Section: Ess Scalingmentioning

confidence: 99%

Simulation of Induction Traction Drive with Supercapacitor Energy Storage System Test Bench

Staņa

Bražis

Apse-Apsitis

2015

Electrical, Control and Communication Engineering

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-The paper describes the application of supercapacitor energy storage system for induction traction drive test bench that replaces a real electric public transport for performing testing and researches. The suitability and usage of such bench for research purposes is explained and the importance of the development of software mathematical model for performing simulations to be done before physical implementation measures is reasoned. The working principle of the bench and applied components are described. A virtual model of the bench was built and simulations were performed using Matlab/Simulink software. The basic topology of the virtual bench model is described as well. The calculations of this work show the scaling of supercapacitor energy storage system by setting different limits of working voltage range in order to adjust them to test bench parameters, whereas the modelling compares two simulation cases -the application of less supercapacitors and the application of more supercapacitors with the same common rated voltage. The autonomous mode simulations were also performed. Simulation results are analyzed and recommendations for the application of the supercapacitor energy storage system, with respect to initial supercapacitor circuit voltage, are given.

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“…DC motors are still important machines in many industrial applications such as steel rolling mills, electric vehicles and trams, robotic manipulators [1,2], etc. Classical methods of parameters calculation of the controlled drive with the DC motor are based on knowledge of its mathematical model [3], including model of the driven machine.…”

Section: Introductionmentioning

confidence: 99%

CAD of Cascade Controllers for DC Drives Using Genetic Algorithm Methods

Ismeal

Kyslan

Fedák

2014

Procedia Engineering

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PID controller presents the most widely used controller in industrial applications. It needs efficient methods to set-up and tune parameters of its three components based on the properties of the plant and its parameters. In this paper the cascade controller for a DC drive (consisting of the speed and current controllers in series) is designed and tuned using genetic algorithm technique with different objective functions. The method of designing two PID controllers connected in cascade by the genetic algorithm technique was applied to a DC drive equipped by current and speed controllers. The aim of genetic algorithm control method consists in finding the best set of solutions for the controller parameters that give desired dynamic and static performance of the system. By using MATLAB/Simulink software a graphical user interface (GUI) was developed for efficiently, user friendly, and comfortable calculation and tuning the parameters of both controllers in cascade and for visualizing results.

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Efficiency of mechanical energy recovery from a tram by different input conditions

Cited by 9 publications

References 1 publication

A Review of the Energy Efficiency Improvement in DC Railway Systems

A Review of the Energy Efficiency Improvement in DC Railway Systems

Simulation of Induction Traction Drive with Supercapacitor Energy Storage System Test Bench

CAD of Cascade Controllers for DC Drives Using Genetic Algorithm Methods

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