scholarly journals Identifying Technology Opportunities for Electric Motors of Railway Vehicles with Patent Analysis

2021 ◽  
Vol 13 (5) ◽  
pp. 2424
Author(s):  
Yunkoo Cho ◽  
Young Jae Han ◽  
Jumi Hwang ◽  
Jiwon Yu ◽  
Sangbaek Kim ◽  
...  
Keyword(s):  
Electric Motor ◽  
New Technologies ◽  
Technology Development ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Advanced Technology ◽  
Railway Vehicle ◽  
Electric Motors ◽  
Patent Data ◽  
Railway Vehicles

An electric motor is a device that changes electrical energy into mechanical energy for railway vehicles. When developing the electric motor, it used to be developed simply for structures or control methods of the motor itself without considering convergence with other devices or technologies. However, as the railway vehicles become more advanced, technology development through convergence with other devices or technologies is spreading. Therefore, based on patent data related to the electric motors applied to the railway vehicles, this research aims to carry out technical forecasting for establishing research and development (R and D) direction for new technologies by predicting vacant technologies from the point of view of technology convergence. In other words, we studied how to find the vacant technologies in a field of convergence technology for the electric motor of the railway vehicles by analyzing the patent data. More specifically, we search the patents data associated with the electric motor of the railway vehicle that contain multiple IPC codes, and use multiple IPC codes to determine the field of convergence technology. In addition, we extract keywords from the patents data related to each of the determined convergence technologies and define the vacant technologies by interpreting the field of convergence technology and the extracted keywords.

scholarly journals Rancang Bangun Modul Pembelajaran Bengkel Listrik (Designing Electric Workshop Learning Modules)

2019 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Sonong Sonong ◽  
Herman Nauwir ◽  
Muhammad Ruswandi Djalal
Keyword(s):  
Induction Motor ◽  
Electric Motor ◽  
Motor Performance ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Electric Machine ◽  
Protection System ◽  
Electric Motors ◽  
Learning Modules ◽  
Motor Operation

Electric motor is an electric machine that has a function as a converter of electrical energy into mechanical energy. Electric motors are widely used as movers because they are better in terms of technical and economical, but have disadvantages such as large initial currents so that they cannot last long, to overcome this can be used Y-utan star starting method both manually and automatically created in a panel box. In the operation and manufacture of a protection system for a 3 phase induction motor, some supporting equipment can be arranged in a panel box so that motor performance can be maximized. The results of this tool design are in the form of a panel box in which there are three types of circuits, namely: 3 phase induction motor operation circuit with the starting Y-∆ automatically, reversing the direction of 3 phase induction motor rotation, and 3 phase induction motor operation in two places. Where the series is equipped with a protection system and can be operated manually and automatically.

scholarly journals PERANCANGAN SISTEM OTOMATISASI CONTROL MOTOR 3 PHASE MENGGUNAKAN BLUETOOTH BERBASIS ARDUINO UNO

2019 ◽  
Vol 4 (2) ◽  
pp. 50-55
Author(s):  
Syarif Moh Rofiq Al- Ghony ◽  
Subuh Isnur Haryudo ◽  
Jati Widyo Leksono
Keyword(s):  
Control System ◽  
Electric Motor ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Data Capture ◽  
Effective Range ◽  
Effective Distance ◽  
Arduino Uno

The electric motor is a device that serves to transform electrical energy into mechanical energy of motion. In this case the designed control system motor 3 phase by Smartphones through bluetooth network to find out the effective range of extremity. The methods used in the form of data capture of measurement effective range the furthest that can be reached by bluetooth to activate relay SPDT and motor 3 phase. Results of testing the most effective distance of the otomasisasi control system of motor 3 phase maximum as far as 15 meters with a time of pause 0.5 seconds.

scholarly journals Series Architecture on Hybrid Electric Vehicles: A Review

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7672
Author(s):  
Alessandro Benevieri ◽  
Lorenzo Carbone ◽  
Simone Cosso ◽  
Krishneel Kumar ◽  
Mario Marchesoni ◽  
...  
Keyword(s):  
Hybrid Electric Vehicles ◽  
New Technologies ◽  
Combustion Engine ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Wide Bandgap ◽  
Parallel Architectures ◽  
Medium Size ◽  
Power Electronic Converters ◽  
Additional Losses

The use of series architecture nowadays is mainly on hybrid buses. In comparison with series-parallel and parallel architectures, which are usually exploited on medium-size cars, the series architecture allows achieving internal combustion engine higher efficiency. The downside of this architecture, due to a double energy conversion (i.e., mechanical energy converted in electrical energy and electrical energy converted again in mechanical energy), is that additional losses are introduced. For this reason, the parallel and the series/parallel architectures were considered more suitable for hybrid medium-size cars. Nevertheless, the use of new technologies can change this scenario. Regarding storage systems, supercapacitors achieved a significant energy density, and they guarantee much higher efficiency than battery storage. Moreover, the use of wide-bandgap components for power electronic converters, such as silicon carbide devices, assure lower losses. In this scenario, the series architecture can become competitive on medium-size cars. This paper shows a review of various studies performed on this topic.

scholarly journals Electrification of a Heavy-Duty CI Truck—Comparison of Electric Turbocharger and Crank Shaft Motor

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1402
Author(s):  
Kristoffer Ekberg ◽  
Lars Eriksson ◽  
Christofer Sundström
Keyword(s):  
Optimal Control ◽  
Energy Storage ◽  
Electric Motor ◽  
Energy Input ◽  
Energy Savings ◽  
Electrical Energy ◽  
Electric Motors ◽  
Cost Factor ◽  
The Cost ◽  
Cost Factors

A combustion engine-driven vehicle can be made more fuel efficient over some drive cycles by, for example, introducing electric machines and solutions for electrical energy storage within the vehicle’s driveline architecture. The possible benefits of different hybridization concepts depend on the architecture, i.e., the type of energy storage, and the placement and sizing of the different driveline components. This paper examines a diesel electric plug-in hybrid truck, where the powertrain includes a diesel engine supported with two electric motors, one supporting the crank shaft and one the turbocharger. Numerical optimal control was used to find energy-optimal control strategies during two different accelerations; the trade-off between using electrical energy and diesel fuel was evaluated using a simulation platform. Fixed-gear acceleration was performed to evaluate the contribution from the two electric motors in co-operation, and individual operation. A second acceleration test case from 8 to 80 km/h was performed to evaluate the resulting optimal control behavior when taking gear changes into account. A cost factor was used to relate the cost of diesel fuel to electrical energy. The selection of the cost factor relates to the allowed usage of electrical energy: a high cost factor results in a high amplification from electrical energy input to total system energy savings, whereas a low cost factor results in an increased usage of electrical energy for propulsion. The difference between fixed-gear and full acceleration is mainly the utilization of the electric crank shaft motor. For the mid-range of the cost factors examined, the crank shaft electric motor is used at the end of the fixed-gear acceleration, but the control sequence is not repeated for each gear during the full acceleration. The electric motor supporting the turbocharger is used for higher cost factors than the crank shaft motor, and the amplification from electrical energy input to total energy savings is also the highest.

scholarly journals IMPROVEMENT OF THE LABORATORY STAND FOR EXAMINATION OF THE PISTON COMPRESSOR AT THE EXPENSE OF THE PRESSURE CONTROL CIRCUIT ON THE BASIS OF THE PROGRAMMED LAMP! 12/24 RC IN MATLAB SIMULINK ENVIRONMENT

2021 ◽  
pp. 149-164
Author(s):  
Andrii Shtuts ◽  
Katherina Chmih
Keyword(s):  
Electric Drive ◽  
Electric Motor ◽  
Gas Turbines ◽  
Distribution Systems ◽  
Mechanical Energy ◽  
Piston Compressor ◽  
Electrical Energy ◽  
Compressed Air ◽  
Main Element ◽  
The Cost

It is impossible to imagine any modern mechanism in any field of technology that has not been driven by an automated electric drive. In the electric drive, the main element that converts electrical energy into mechanical energy is an electric motor, which is controlled by converters and control devices in order to form static and dynamic characteristics of the electric drive that meet the requirements of the production mechanism. Equipment for the production and use of compressed air is universal and safe, it is widely used in modern industry. Compressed air is used as a source of energy, a medium for cleaning (purging), a means of transportation and even as a source of cold. Air compressors make up more than 80% of the total compressor fleet. Compressed air production and distribution systems in industry consume up to 10% of electricity. Unfortunately, there is an opinion that compressed air is cheap, although only 5-10% of the consumed electricity is spent on useful mechanical work. The cost of producing compressed air is 5-15% of the cost of production, and for some industries reach 30% or more. Reciprocating, centrifugal, and in recent years screw compressors have been widely used as air compression machines. In agricultural production, compressors are used to supply air and gases of the main or by-products of the technological cycle. These machines are common in gas supply systems. Compressors are also widely used in gas turbines. The laboratory stand for research of the piston compressor is modernized. On the basis of technical and economic indicators the electric drive system is selected, the electric motor is calculated and selected, it is checked with heating, overload capacity and start-up conditions, characteristics in statistical and dynamic modes are investigated, and also electric schemes of SAEP of the main lifting mechanism are developed. To verify the correctness of the adopted design methods, modeling was performed in Matlab.

Experimental Investigations on Hybrid Vehicle

2018 ◽  
Vol 7 (3.17) ◽  
pp. 85 ◽  
Author(s):  
Khalid G. Mohammed ◽  
. . ◽  
. .
Keyword(s):  
Electric Motor ◽  
Theoretical Calculations ◽  
Mechanical Energy ◽  
Electrical Power ◽  
Electrical Energy ◽  
Experimental Investigations ◽  
Electric Driving ◽  
Energy Science ◽  
Three Phase ◽  
The Relationship

Electric driving is one of the main courses in energy science. It represents the relationship between an electric motor as a tool to convert electrical energy into mechanical energy and between a managed or mechanical device that drives it through belts or gears. In the current research, a three-phase synchronous motor 1200 Watt was used to drag an electric vehicle with a rated load of 150 kg and at a speed of up to 40 km per hour. Transmission from the electric motor to the vehicle's tires is done through a gear to rotate the wheels of the vehicle. Batteries are used to store continuous electrical power from a 220-volt alternating power source using the DC/AC inverter. Solar energy 150 Watt has also been used by using a solar panel placed on the roof of the vehicle. Mechanical energy has also been used by mechanical pedal. The vehicle was tested on a flat and sloping road in Baquba / Diyala province / Iraq. The efficiency tests proved the acceleration and balance of the car are good and matched with the theoretical calculations.   

Paper 14: The Application of Electric Motors in Vehicles

1969 ◽  
Vol 184 (1) ◽  
pp. 103-116
Author(s):  
H. N. Barr
Keyword(s):  
Electric Motor ◽  
Motor Vehicle ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Current Status ◽  
Machine Construction ◽  
Minor Role ◽  
Typical Application ◽  
Rotating Machine ◽  
And Performance

The use of electric drive for motor vehicle ancillaries is questioned when adequate power is available from the vehicle's own source of motive power. The term ‘motor’ is extended to include any electromagnetic device which converts electrical energy to mechanical energy. Reference is made to one of the earliest and best-known applications of an electric motor, i.e. the starter motor. Rotating machine construction and performance characteristics are outlined in some detail, and reference is made to applications appropriate to the machine characteristics. Simple control systems are mentioned to show their interdependence with motors as part of the application. The background and current status of the ‘disc’ motor is presented showing the advances made and the problem to be solved in the context of the motor vehicle industry. Machine rating based on the thermal stability of the insulation system with time is discussed. Life, reliability, and cost as major industry objectives receive mention at appropriate points in the text. A typical application is dissected to illustrate the process and some of the details taken into account by a designer before any calculations are made. Reasons are given to show that the application of an electric motor to a motor vehicle is almost wholly a mechanical engineering function with the basic electrical design taking an essential but minor role in the process from demand through to supply.

Thermal Model Based Fault Detection and Isolation of Power Inverter IGBT Module

2018 ◽  
Author(s):  
Madi Zholbaryssov ◽  
Azeem Sarwar
Keyword(s):  
Fault Detection ◽  
Thermal Model ◽  
New Technologies ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Fault Detection And Isolation ◽  
Fuel Prices ◽  
Insulated Gate Bipolar Transistor ◽  
Model Based ◽  
Igbt Module

Penetration of electrified vehicles has increased steadily over the last decade due to unstable fuel prices, and the ability of such vehicle to offer lower cost per mile for transportation. At the same time, strict fuel emission standards continue to motivate the auto industry to invest resources on developing new technologies, which allow economically feasible electrification of vehicles and enable mass production. In electric vehicles, the electric drive system converts electrical energy into mechanical energy that powers the vehicle wheels. In this article, we present thermal model based fault detection and isolation methodology for power inverter insulated gate bipolar transistor (IGBT) modules, which play a key role in converting DC power from the battery into AC power that goes into the electric motor and drives the wheels through the transmission module. We do not propose any additional sensing capability, and make use of what is typically available in most of the production vehicles today across the industry. Results are presented from simulation studies that highlight the effectiveness of our proposed method.

scholarly journals Unimodal electric motor-generator

Doklady BGUIR ◽  
2020 ◽  
Vol 18 (7) ◽  
pp. 96-99
Author(s):  
A. A. Kurayev ◽  
V. V. Matveyenka
Keyword(s):  
Electric Motor ◽  
Nuclear Power ◽  
Power Plants ◽  
Electrical Energy ◽  
Electric Motors ◽  
Technical Feasibility ◽  
Electrical Systems ◽  
Hazardous Environments ◽  
Moving Media ◽  
Mathematical Foundations

The commissioning of nuclear power plants in Belarus sets out wide tasking for the efficient usage of electrical energy in various electrical systems, instruments and devices. Specifically, it concerns the stationary and special-purpose electric motors. At present, they use bipolar motors with a collector – the switch of the motor armature windings during its rotation. However, there is a completely different type of motors that does not require a collector – the unipolar electric motor-generator. Some of its properties allow it to be used where the commutator motor is unsuitable, for example, in explosive and fire hazardous environments (sparking on the collector is unacceptable), in precision devices where extreme smoothness and vibration lack are required, etc. Physico-mathematical foundations of the unipolar motor-generator (moving media electrodynamics, Lorentz force, unipolar induction, magnetohydrodynamics) are described in a number of monographs and textbooks, for example, in [1–4]. The purpose of this article is to pay attention to the technical feasibility of the unipolar motor-generator in a design with separated conductors in the rotor drum.

Reduction of structural vibrations with the piezoelectric stacks ring

2020 ◽  
Vol 64 (1-4) ◽  
pp. 729-736
Author(s):  
Jincheng He ◽  
Xing Tan ◽  
Wang Tao ◽  
Xinhai Wu ◽  
Huan He ◽  
...  
Keyword(s):  
Vibration Control ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Structural Vibrations ◽  
Rotor Systems ◽  
Fea Model ◽  
Piezoelectric Stacks ◽  
Shunt Damping ◽  
Reduction Effect ◽  
Euler Bernoulli Beam

It is known that piezoelectric material shunted with external circuits can convert mechanical energy to electrical energy, which is so called piezoelectric shunt damping technology. In this paper, a piezoelectric stacks ring (PSR) is designed for vibration control of beams and rotor systems. A relative simple electromechanical model of an Euler Bernoulli beam supported by two piezoelectric stacks shunted with resonant RL circuits is established. The equation of motion of such simplified system has been derived using Hamilton’s principle. A more realistic FEA model is developed. The numerical analysis is carried out using COMSOL® and the simulation results show a significant reduction of vibration amplitude at the specific natural frequencies. Using finite element method, the influence of circuit parameters on lateral vibration control is discussed. A preliminary experiment of a prototype PSR verifies the PSR’s vibration reduction effect.

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