scholarly journals Methodology of testing and optimal setting of an asynchronous traction drive for electric vehicles

2018 ◽  
Vol 234 ◽  
pp. 02003 ◽  
Author(s):  
Vasil Dimitrov
Keyword(s):  
Electric Vehicles ◽  
Asynchronous Motor ◽  
Electric Energy ◽  
Electric Energy Consumption ◽  
Software Products ◽  
Speed Regulation ◽  
Wide Range ◽  
Special Software ◽  
Optimal Setting ◽  
And Control

This paper presents a methodology of tests of traction asynchronous drives applied in electric vehicles. It is similar to Urban Driving Cycle ECE-15 (UDC). The objective of the research is to verify the developed methodology through tests performed on a laboratory simulator, which consists of energy-saving asynchronous motor controlled by a frequency inverter (converter). Vector Control on the drive is used for smooth speed regulation over a wide range at high values of efficiency and power factor. Contemporary measuring and control devices and special software products are used for capturing the dynamic characteristics when starting, stopping and changing the speed set point of the drive. Some of tests are presented and an experimental verification of the developed methodology is made. An optimal setting of the drive parameters can be made to minimize the electric energy consumption.

Sensitivity and Correlation Analysis and Implications in Scalable Product Family Design for Plug-In Hybrid Electric Vehicles

2015 ◽  
Author(s):  
Zhila Pirmoradi ◽  
G. Gary Wang
Keyword(s):  
Correlation Analysis ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Electric Energy ◽  
Product Family ◽  
Green Energy ◽  
Product Family Design ◽  
Hybrid Electric ◽  
Market Needs ◽  
And Control

Plug-in Hybrid Electric Vehicles (PHEVs) bear great promises for increasing fuel economy and decreasing greenhouse gas emissions by the use of advanced battery technologies and green energy resources. The design of a PHEV highly depends on several factors such as the selected powertrain configuration, control strategy, sizes of drivetrain components, expected range for propulsion purely by electric energy, known as AER, and the assumed driving conditions. Accordingly, design of PHEV powertrains for diverse customer segments requires thorough consideration of the market needs and the specific performance expectations of each segment. From the manufacturing perspective, these parameters provide the opportunity of mass customization because of the high degree of freedom, especially when the component sizes and control parameters are simultaneously assessed. Based on a nonconventional sensitivity and correlation analysis performed on a simulation model for power-split PHEVs in this study, the product family design (PFD) concept and its implications will be investigated, and limitations of PFD for such a complex product along with directions for efficient family design of PHEVs will be discussed.

Optimal Control and Energy Management for Hybrid Gas-Electric Propulsion

2020 ◽  
Vol 142 (9) ◽  
Author(s):  
Hanz Richter ◽  
Joseph W. Connolly ◽  
Donald L. Simon
Keyword(s):  
Optimal Control ◽  
Electric Propulsion ◽  
Electric Energy ◽  
Generic Model ◽  
Control Approach ◽  
Electric Energy Consumption ◽  
Speed Regulation ◽  
Fuel Burn ◽  
Energy Conversion And Storage ◽  
Linear State

Abstract The paper considers a generic model for a turbofan engine coupled to electromechanical (EM) elements used for energy conversion and storage in electric form. The electromechanical systems apply torque to the engine shafts, allowing for controllable power injection or extraction to and from the engine. The standard proportional-integral (PI) control law used to command fuel flow for turbofan speed regulation is maintained for compatibility with industry practices, leaving the electromechanical torque to be specified. The paper adopts an optimal control approach for this purpose, where a weighted combination of electric energy consumption and fuel consumption is minimized subject to the dynamics of the electrified propulsion system. The solution for the optimal torques is given by linear state feedback plus bias, with gains calculated numerically from engine linearization data. Energy balance equations are derived and used to guide the optimization, evaluate the resulting power distributions, and check for errors. Simulation studies are presented for a chop-burst transient and for a realistic flight mission profile with environmental input variations. The paper shows the economic advantage of operating the engine with the electrified components. Specifically, fuel burn can be reduced in exchange for electric energy, which must be replenished, but at lower cost.

Energy-Saving Method Analysis in Plastic Products Industry

2013 ◽  
Vol 401-403 ◽  
pp. 2226-2229
Author(s):  
Tao Yong Li ◽  
Hao Wang ◽  
Ming Zhong ◽  
Chang Hai Miao
Keyword(s):  
Injection Molding ◽  
Energy Saving ◽  
Electric Energy ◽  
Electric Energy Consumption ◽  
Advantages And Disadvantages ◽  
Speed Regulation ◽  
Saving Mode ◽  
Saving Effect ◽  
Method Analysis ◽  
Plastic Products

Kinds of plastic injection molding machines were widely used in plastic products industry. The electric energy consumption of injection molding machine was an important part of the production cost of plastic products. Injection molding machines main energy saving methods such as the variable frequency speed regulation and electromagnetic heating were analyzed. The various methods of energy saving effect were evaluated through actual measurements, The advantages and disadvantages of various energy saving mode were also pointed out. The energy saving space and benefit in this industry was analyzed from the view of technology economy.

scholarly journals Speed Regulation and Control of Inverter Fed Induction Motor Drives Using Controllers (PI, PID)

2020 ◽  
pp. 7-14
Author(s):  
Piyush Kumar Ojha ◽  
Eeshan Amiy ◽  
Apurv Nihal Bhagat ◽  
Sumit Kumar
Keyword(s):  
Induction Motor ◽  
Electric Motor ◽  
Asynchronous Motor ◽  
Motor Drives ◽  
Variable Speed ◽  
Induction Motor Drives ◽  
Matlab Simulink ◽  
Speed Regulation ◽  
And Control ◽  
Selection Of

An induction (or asynchronous) motor is an AC electric motor in which runs at the rated condition but there is indeed of variable speed of motor. There are numbers of methods available for speed control, but there is need for selection of proper controller for obtaining the desired result. Simulation was done in the MATLAB Simulink software.

A New Laboratory Methodology for Assessing the Cutting Behaviour of Gangsawing Blades

2013 ◽  
Vol 548 ◽  
pp. 72-81 ◽  
Author(s):  
Carlos A. Anjinho ◽  
Pedro M. Amaral ◽  
Jorge Cruz Fernandes ◽  
Luis G. Rosa
Keyword(s):  
Working Conditions ◽  
Laboratory Testing ◽  
New Products ◽  
Electric Energy ◽  
Diamond Grit ◽  
Electric Energy Consumption ◽  
Sensing System ◽  
Cutting Machine ◽  
Special Software ◽  
Working Parameters

The objective of this work is to present a new laboratory testing methodology suitable for estimate the forces generated during multiple blade gangsawing employed on marble and limestone. This methodology allows analysing the tool behaviour aiming to contribute for developing new products and/or optimize the working conditions for processing different classes of stones. In the present research, 3 different diamond linear blades were tested against 2 types of stones (limestone and marble), studying the effect of two working parameters. The linear blades differ in the characteristics of the segments: size of diamond grit and type of metallic binders used to embed the diamond. The classification equipment used in this work consists in a special bridge cutting machine incorporating a tailored instrumentation / sensing system to control the working conditions while all the necessary cutting outputs are monitored and stored by special software. Taking into account the output parameters measured to evaluate the tool behaviour (vertical and horizontal forces, electric energy consumption, vibrations measured by accelerometers and tool wear); it is possible to classify and select tools with relation to the efficacy of the cut.

scholarly journals A digital method for correcting planned electric energy consumption as a step to the Energynet market

2018 ◽  
Vol 44 ◽  
pp. 00073
Author(s):  
Oleg Russkov ◽  
Sergei Saradszhivili
Keyword(s):  
Energy Consumption ◽  
Electricity Market ◽  
Electric Energy ◽  
Digital Method ◽  
High Tech ◽  
Metallurgical Enterprise ◽  
Electric Energy Consumption ◽  
Industrial Enterprises ◽  
Time Basis ◽  
And Control

Creating the modern high-tech industry should be viewed as a fusion of material and digital production and control methods. Industrial enterprises with uneven electric energy consumption, which have failed to adapt to the requirements of modern digital wholesale electricity market, have to spend significant money to pay for hourly deviations of electric energy, whose price constantly grows. A digital method for correcting planned electric energy consumption based on the theory of games is offered to reduce the costs of these enterprises, which have no possibility for regulating own load on a real time basis. The updating is carried out depending on hourly relations of prices on the wholesale electric energy market in order to exclude the risks of making unprofitable hourly transactions. An algorithm of the proposed method is provided and a predictive model developed on its basis is described and positive results of its testing on the basis of a metallurgical enterprise.

scholarly journals Design and Setting up of a Laboratory Drive System with Remote Monitoring and Control

2017 ◽  
Vol 15 (2) ◽  
pp. 25-30
Author(s):  
V. Dimitrov
Keyword(s):  
Remote Monitoring ◽  
Asynchronous Motor ◽  
Laboratory System ◽  
Building Automation ◽  
Monitoring And Control ◽  
Frequency Converters ◽  
Speed Regulation ◽  
Mandatory Requirement ◽  
Remote Monitoring And Control ◽  
And Control

Abstract Systems for remote monitoring and control on energy consumption, efficiency and proper operation of the controlled objects are very often used in different spheres of industry, building automation, electricity distribution network etc. Various types of intelligent energy meters, PLCs and other control devices are involved in such systems. On the other hand, soft starters are widely used in industry and building automation for control on asynchronous drives when the speed regulation is not a mandatory requirement. They are cheaper than inverters and frequency converters and allow temporal reduction of the torque and current surge during start-up, as well as smooth deceleration. This is why the study of the principles of operation and setting up of intelligent energy meters, soft starters and PLC is very important. A laboratory system has been designed and built. An asynchronous motor is controlled by a soft starter and remote monitoring and control by contemporary devices has been provided. A methodology of design and setting up has been developed.

scholarly journals Renewable Energy Sources Integration and Control in Railway Microgird

2021 ◽  
Vol 9 (VI) ◽  
pp. 4686-4709
Author(s):  
Jonnalagadda Rithvik Thanmay
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Hybrid Energy ◽  
Distributed Generator ◽  
Electric Energy Consumption ◽  
Smart Control ◽  
Dc Bus ◽  
And Control

The traffic rail increase implies an increase in the electric energy consumption. Hybridizing the railway sub-stations with hybrid energy sources based on renewable energy sources and storage units connected to a DC bus may be a solution to contribute to the partial independence of energy producers in the sector of traffic rail. A smart control is highly recommended in order to avoid disturbing the traffic or the energy quality of railway lines. This project proposes a reversible, self-adaptive, autonomous and intelligent distributed generator connected to the catenary thanks to the DC bus distributed control by the multi-agent system. The results analysis has shown that the proposed control architecture can be a solution to face the issues related to the traffic railway issues.

scholarly journals Increase the Efficiency of an Induction Motor Feed from Inverter for Low Frequencies by Combining Design and Control Improvements

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 530
Author(s):  
Maria Dems ◽  
Krzysztof Komeza ◽  
Jacek Szulakowski ◽  
Witold Kubiak
Keyword(s):  
Energy Savings ◽  
High Efficiency ◽  
Open Loop ◽  
Design Parameters ◽  
Optimal Size ◽  
Low Frequencies ◽  
Field Weakening ◽  
Speed Regulation ◽  
Wide Range ◽  
And Control

Speed-controlled induction motors have the most significant potential for energy savings. The greatest problems with obtaining high efficiency occur in motors with a wide range of rotational speed regulation, as in the motors for driving industrial washing machines under consideration. While for the highest speeds, the dominant phenomenon is at field weakening. The problem is obtaining the optimal size of the magnetic flux for low rotation speed to prevent excessive saturation increasing current, and reduction of efficiency. This problem is usually solved by selecting the appropriate control for an already built machine. The authors propose a combination of activities when designing the motor structure with the selection of proper control, which allows for high efficiency. Since the drive does not require precise speed control or obtaining the required dynamics, it was possible to use an inexpensive control in an open loop, avoiding the cost of transmitters. Furthermore, the number of design parameters that are subject to change is significantly limited by technological factors and the available space in the washing machine. Proper parameter selection was made using a peripheral method assisted by field-circuit simulations. The proposed approach can be used in designing structures and selecting motors controls for other applications.

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