Hardware-in-the-Loop Testing of Electric Traction Drives with an Efficiency Optimized DC-DC Converter Control

2020 ◽  
Author(s):  
Konstantin Etzold ◽  
René Scheer ◽  
Timm Fahrbach ◽  
Shuang Zhou ◽  
Rafael Goldbeck ◽  
...  
Keyword(s):  
Hardware In The Loop ◽  
Traction Drives ◽  
Electric Traction

scholarly journals Present and Future of Supercapacitor Technology Applied to Powertrains, Renewable Generation and Grid Connection Applications

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3060
Author(s):  
Gustavo Navarro ◽  
Jorge Torres ◽  
Marcos Blanco ◽  
Jorge Nájera ◽  
Miguel Santos-Herran ◽  
...  
Keyword(s):  
Energy Storage ◽  
Control Strategies ◽  
Industrial Applications ◽  
Frequency Regulation ◽  
Scientific Publications ◽  
Industrial Systems ◽  
Grid Connection ◽  
Huge Impact ◽  
Traction Drives ◽  
Electric Traction

Energy storage systems (ESS) are becoming essential as a solution for troublesome industrial systems. This study focuses on the application of a type of ESS, a high-power technology known in the literature as supercapacitors or electric double layer capacitors (EDLC). This technology has had a huge impact during the last decade on research related to the electric traction drives, renewable sources and powergrids. Related to this aspect, this paper summarizes the most relevant scientific publications in the last five years that study the use of supercapacitor technology (SCs) in electric traction applications (drives for rail vehicles and drives for road vehicles), generation systems for renewable energy (wind, solar and wave energy), and connection systems to the electric grid (voltage and frequency regulation and microgrids). The technology based on EDLC and the practical aspects that must be taken into account in the op-eration of these systems in industrial applications are briefly described. For each of the aforementioned applications, it is described how the problems are solved by using the energy storage technology, drawing the solutions proposed by different authors. Special attention is paid to the control strategies when combining SCs with other technologies, such as batteries. As a summary, some conclusions are collected drawn from the publications analyzed, evaluating the aspects in which it is necessary to conduct further research in order to facilitate the integration of EDLC technology.

Problems of development of traction drives with brushless traction motors for passenger electric locomotives

2020 ◽  
pp. 20-25
Author(s):  
Andrey Sergeevich Kosmodamianskiy ◽  
◽  
Vladimir Ivanovich Vorobyev ◽  
Mikhail Yuryevich Kapustin ◽  
Oleg Vasilyevich Izmerov ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Rotation Frequency ◽  
Axial Direction ◽  
Traction Drive ◽  
Traction Motors ◽  
Adaptability To Manufacture ◽  
Traction Drives ◽  
Conducting Research ◽  
The One ◽  
Electric Traction

The paper considers a problem of creation of new traction drives with brushless electric traction motors (ETM) for passenger locomotives. Analysis of drive designs revealed that the increase of power of induction motors through the increase of rotation frequency leads to the contradiction between requirements for the design reliability, on the one hand, and requirements for technological simplicity, on the other hand. In order to solve the contradiction it is necessary to use ETM designs that have enhanced torque and minimal dimensions in axial direction. It is established that ETM with disk rotor (axial magnetic flux) satisfy such requirements. The authors proposed an aggregate scheme of support-frame traction drives that include ETM with disk rotor, which allows significantly increasing the adaptability to manufacture and repairability of drive at preservation of reliability. As a result, the authors made a conclusion about the reasonability of conducting research and development work on creation of locomotive ETM with axial magnetic flux. The authors have submitted an application for a patent on the proposed design of traction drive.

scholarly journals Energy-efficient power regulators for electric railway vehicles

2018 ◽  
Vol 216 ◽  
pp. 02001
Author(s):  
Leonid Astrakhantsev ◽  
Natalya Ryabchyonok ◽  
Tatyana Alekseeva ◽  
Andrey Khomenko ◽  
Aleksey Martusov
Keyword(s):  
Energy Efficiency ◽  
Electromagnetic Compatibility ◽  
Electrical Potential ◽  
Railway Vehicles ◽  
Electromagnetic Processes ◽  
Electric Railway ◽  
Traction Drives ◽  
Electric Traction ◽  
Effective Use ◽  
Efficient Power

This study aims at validation of the power regulation parameter for electric railway vehicles for effective use of electrical potential of energy sources. Based on analysis of electromagnetic processes with the use of suggested energy parameters and mathematical modeling method the assessment of energy efficiency was performed for semiconductor power regulators for alternating and direct current electric traction drives. Power balance and obtained mathematical equations for calculation of its components allow improving the education content of educational institutions due to eliminating methodological inconsistencies. The suggested technical solutions for continuous and full use of the electrical potential of overhead systems and self-generated power supply sources ensure their advantage in terms of structure, energy efficiency and electromagnetic compatibility.

CAD/CAM-Schnittstelle für die Wickeltechnik*/CAD/CAM interface for winding technology – Systematic development and validation for accelerated commissioning

2019 ◽  
Vol 109 (07-08) ◽  
pp. 611-616
Author(s):  
J. Hofmann ◽  
M. Bolender ◽  
P. Sun ◽  
J. Fleischer ◽  
F. Blanc Sell-Le ◽  
...  
Keyword(s):  
Series Production ◽  
Traction Drive ◽  
Support Points ◽  
Matlab Program ◽  
Nc Program ◽  
Cad Cam ◽  
Systematic Development ◽  
Traction Drives ◽  
Electric Traction ◽  
Development And Validation

Durch die erhöhte Nachfrage an elektrischen Traktionsmotoren steigen die Anforderungen an die Produktionstechnik. Die Mehrachsnadelwickeltechnik spielt dabei eine wichtige Rolle, da sie es ermöglicht Vollblechschnittstatoren vollautomatisiert zu bewickeln. Die manuelle Erstellung eines NC-Programms nimmt viel Zeit in Anspruch, was eine kritische Hürde für den Prototypenbau darstellt. In diesem Beitrag wird eine CAD/CAM-Schnittstelle vorgestellt und validiert, die es erlaubt aus den CAD-Daten sowie dem Wickelschema automatisiert ein Wickelprogramm zu erstellen.   Due to the increased demand for electric traction drives based on electric mobility, the requirements for production technology are increasing. The multi-axis needle winding technology plays an important role for electric traction drive production. It enables fully automated winding of non-segmented lamination stacks and is therefore very well suited for industrial series production. The manual development of a NC-program for such a machine is very complex and time consuming, which displays a critical barrier especially for prototype manufacturing. Therefore, a CAD/CAM interface was developed at the wbk Institute for Production Science, which enables the automatic development of a winding program from the CAD data of stator, machine and winding tool as well as the winding scheme. The interface is based on a Matlab program that reads in the CAD data in STL format and determines the necessary dimensions using a suitable algorithm. These can be used to calculate support points on which the winding program is based. This article describes the structure of the interface and how to validate it.

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