RESEARCH OF SUCCESSIVE EXCITATION ELECTRIC MOTOR DYNAMIC MODES WITH PULSED SCHEMES OF THE ELECTRIC DRIVE REGULATION

The problem of increasing the efficiency of power units of autonomous electric transport vehicles is considered. The task of creating a promising power system control device has been singled out. It is determined that in creating such devices, significant results can be obtained by using an intelligent module in the control loop of the electric drive. Goal. It is necessary to develop a power plant model with intelligent control, allowing to obtain data sets about currents, voltages and engine speeds in different modes of operation. The architecture of an intelligent control device, a PID controller based on a neural network, has been proposed; it has been proposed to exclude rotor angular velocity sensors from the classical feedback loop. The type and architecture of the neural network is defined. In the software environment MatLab the model of neuroemulator of the engine for formation of a training sample of a neural network by a method of Levenberg – Marquardt is developed. The trained neural network is implemented in the developed model of the electric motor control loop. The results of simulation of the intelligent control device showed a good convergence of the output influences generated by the neuroemulator with the actual parameters of the electric motor.

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Development of a high-quality brushless dc electric drive systems model

Vestnik IGEU ◽

10.17588/2072-2672.2020.1.031-045 ◽

2020 ◽

pp. 31-45

Author(s):

T.H. Abuziarov ◽

A.S. Plehov ◽

A.B. Dar’enkov ◽

A.I. Ermolaev

Keyword(s):

Electric Drive ◽

Electric Motor ◽

Permanent Magnets ◽

Structural Features ◽

Bldc Motor ◽

Electric Drives ◽

Brushless Dc ◽

Systems Model ◽

Semiconductor Converter ◽

Torque Pulsations

When designing electric drives based on brushless DC motors with permanent magnets (BLDC), which have low level torque pulsations, the problem of modelling non-standard topological solutions appears. The known models of BLDC motors are either based on the assumptions about the symmetry of the stator pa-rameters of the electric motor and/or the ideal form of the phase back-EMF waveform, which reduce the accuracy of evaluating the effectiveness of the proposed solutions or prove unusable for modelling an operation of the electric motor with a non-standard semiconductor converter. It is necessary to develop a mathematical model of the BLDC motor-based electric drive that takes into account the structural features of the electric motor and allows for semiconductor converter configuration variability. The model is designed in the Matlab Simulink environment. The verification is carried out by comparing the modelling results with experimental data obtained previously by other researchers. The proposed method for generating phase back-EMF in the BLDC motor model provides the possibility for the user to set the EMF form templates independent for each phase. The proposed method for stator circuit simulating provides the user with access to each of the stator windings leads as well as with the possibility of asymmetric determination of each parameter of the electric motor. Upon verification, it has been shown that the difference in the control points between the simulated and experimental speed-torque curves does not exceed 3,5 %. The developed model allows analyzing the static and dynamic characteristics of operation modes of non-standard topology BLDC motor-based electric drives taking into account the stator pa-rameters asymmetry and the real phase back-EMF waveform. The specified features of the model allow exploring the operation of the designed electric drive, taking into account the BLDC motor and converter design. The model can be applied when checking atypical design decisions and when changing the set parameters of the electric drive and restrictions on working conditions and target functions to refine the control system algorithms and automate the search for optimal parameters of the motor and the semiconductor converter.

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OPTIMIZING THE PIPELINE DIAMETER OF A CIRCULAR SPRINKLER ACCORDING TO THE MINIMUM ENERGY CONSUMPTION CRITERION

AGRICULTURAL ENGINEERING ◽

10.26897/2687-1149-2021-4-66-71 ◽

2021 ◽

pp. 66-71

Author(s):

NIKOLAY V. TSUGLENOK ◽

Keyword(s):

Energy Consumption ◽

Water Supply ◽

Electric Drive ◽

Electric Motor ◽

Water Distribution ◽

Minimum Energy ◽

Operating Conditions ◽

Total Energy Consumption ◽

Minimum Energy Consumption ◽

The Relationship

The authors have determined the conditions for the eff ective use of modern electrifi ed circular sprinklers in the central part of Russia. Their designs are chosen depending on the agrotechnical requirements for irrigation, including the change in the diameter of the water distribution pipeline. However, when the diameter of the pipeline changes, the load on the electric drive of the support trolleys of the sprinkler changes too, which leads to a corresponding change in energy consumption. In turn, this also changes the load of the water supply pump. The paper sets the task of determining the optimal change in the diameter of pipelines according to the criterion of minimum energy consumption, taking into account a number of assumptions. The authors have analyzed the relationship between the change in the load on the electric drive of the sprinkler support trolley and the change in the diameter of one sprinkler section pipeline. It has been found that a decrease in the diameter by 27% (for example, the transition of the diameter of 219 mm to the diameter of 159 mm) leads to a decrease in the load on the electric drive by 38%. However, this also leads to an increase in the head loss in the water supply pump motor and, respectively, to an increase in the load and energy consumption by 0.8…3.8%. The eff ect is initially obvious, but the power of the electric motor of the water supply pump is 10…25 times higher than that of the electric motor of the sprinkler support trolley. Based on the similarity coeffi cients of the irrigation components (water supply and water distribution), the relationship beteween the total energy consumption and the change in the diameter of the water distribution pipeline has been obtained. By diff erentiating the obtained function, the dependence of the value of the optimal diameter for specifi c operating conditions is also obtained. Graphs of the relationship between energy consumption and the change in diameter have been determined, taking into account some restrictions: pump supply, static pressure, and the number of the sprinkler sections.

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Experimental Setup to Characterize Shift Time for High Performance Hybrid Transmissions

Volume 3: 20th International Conference on Advanced Vehicle Technologies; 15th International Conference on Design Education ◽

10.1115/detc2018-85617 ◽

2018 ◽

Author(s):

Daniel S. Dorsch ◽

Justin Carrus ◽

Zongying Xu ◽

Derrick Xu ◽

Amos G. Winter ◽

...

Keyword(s):

Electric Drive ◽

Electric Motor ◽

High Performance ◽

Fuel Efficiency ◽

Rotational Inertia ◽

Experimental Setup ◽

Motor Speed ◽

Hybrid Architectures ◽

Speed Difference ◽

Hybrid Transmission

Hybrid vehicles are increasingly common due to fuel efficiency regulations in place worldwide. High performance hybrids have typically been designed with a focus on improving performance, rather than the combination of both performance and efficiency. In order to improve efficiency of high performance cars, new hybrid architectures are necessary. When incorporating an electric motor, careful focus on operational modes allows for removal of certain elements, such as the reverse gear. Additionally, installing an electric motor directly coupled to the transmission without a clutch gives performance benefits, but requires detailed control of motor speed and novel methodology for shifting. In this paper, the design of an experimental setup for the electric drive in a high performance car hybrid transmission is presented. This architecture allows for characterization of synchronizer behavior during two different shifting methodologies. The first methodology is synchronizing a large rotational inertia with a small shaft speed difference (this differs from a gear shift in a traditional transmission with a large speed difference but small inertia). This situation is encountered when coupling an electric motor to the drivetrain, as the inertia of the electric motor is relatively large compared to a transmission layshaft, but the speed difference is small. The second is testing shifting of a synchronizer where dog tooth engagement happens immediately, with no friction cone to match the speed. This type of shifting is possible with precise electric motor speed control, sensing of the dog tooth position, and fast actuation. This methodology eliminates the need for a friction cone in the synchronizers, while maintaining fast gearshifts for performance driving. Our experimental setup for the electric drive in a hybrid transmission will be used to characterize synchronizer performance with these new shifting methodologies. The insights gained from this setup will aid in designing advanced hybrid architectures.

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Parametric identification algorithm for asynchronous electric motor inverter on the switching intervals of power transistors

E3S Web of Conferences ◽

10.1051/e3sconf/201912402017 ◽

2019 ◽

Vol 124 ◽

pp. 02017

Author(s):

A. Andreev ◽

M. Andreev ◽

D. Kolesnihenko ◽

R.R. Dyganova ◽

G.T. Merzadinova ◽

...

Keyword(s):

Real Time ◽

Electric Drive ◽

Electric Motor ◽

Parametric Identification ◽

Identification Algorithm ◽

Power Transistors ◽

Asynchronous Electric Drive ◽

Subsequent Calculation ◽

Asynchronous Electric Motor ◽

A Current

The authors propose an algorithm for identifying the parameters of a controlled asynchronous electric drive in real time, which provides calculation of stator and rotor resistances which change as a function of temperature. The algorithm is based on the analysis of a current tube of electric motor phase with the subsequent calculation of resistances.

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Wheel Slip Detection for Electric Drive in Planetary Exploration Vehicles

Journal of Computational and Theoretical Nanoscience ◽

10.1166/jctn.2020.9030 ◽

2020 ◽

Vol 17 (9) ◽

pp. 4122-4124

Author(s):

Bishwajit Pal ◽

Samitha Khaiyum

Keyword(s):

Real Time ◽

Electric Drive ◽

Electric Motor ◽

Control Algorithm ◽

Planetary Exploration ◽

Wheel Slip ◽

Current Consumption ◽

Dc Electric Motor ◽

Slip Detection

This article illustrates a technique for tracking longitudinal wheel slips in real time using an embedded microcontroller to map current consumption against real-time current consumed by the engine. This system can be used and operated separately of each other on more than one wheel. To detect wheel slippage, a predefined slip curve mapped to a specific DC electric motor is mapped against the current consumed by the same operational motors. This paper also recommends a convenient control algorithm to calculate its slippage of the wheel in real time. This approach is implemented using distinct load and terrain on a planetary exploration robot.

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ANALYSIS OF OPERATION OF HYBRID VEHICLES IN ELECTRIC DRIVE TRAIN MODE

Alternative energy sources in the transport-technological complex problems and prospects of rational use of ◽

10.12737/17974 ◽

2016 ◽

Vol 3 (1) ◽

pp. 42-47

Author(s):

Толмачев ◽

P. Tolmachev ◽

Попов ◽

I. Popov ◽

Хмелев ◽

...

Keyword(s):

Electric Drive ◽

Electric Motor ◽

Power Plants ◽

Hybrid Vehicle ◽

Hybrid Vehicles ◽

Drive Train ◽

Regression Equations ◽

Hybrid Power ◽

The Impact

The article is devoted to the analysis of operation vehicles with hybrid power plants in electric drive train mode. The main advantages of hybrid vehicles were considered when driving using the electric motor. The experiments were conducted on the stand GNFA HE-3020 which is simulating the operation of a hybrid vehicle the Peugeot 3008 Hybrid4. The impact of road conditions on the power reserve and the recuperation of energy were analyzed. Based on results, the graphs were constructed and regression equations were made.

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Analysis and design solutions for a 4x4 ATV with an electromechanical transmission

MATEC Web of Conferences ◽

10.1051/matecconf/202032901022 ◽

2020 ◽

Vol 329 ◽

pp. 01022

Author(s):

Kirill Evseev ◽

Alexey Dyakov ◽

Vadim Pushtakov

Keyword(s):

Electric Drive ◽

Electric Motor ◽

General Design ◽

Analysis And Design ◽

Current State ◽

Design Solutions ◽

Half Axis

The article provides a review and analysis of the current state of development of 4x4 ATVs and the scope of the developed ATV, a comparison of ATVs with mechanical and electromechanical transmissions, as well as their technical characteristics. The selection and justification of the design solutions for a 4x4 ATV with an electromechanical transmission are given on the basis of the following electric drive schemes considered in the article: “Electric motor instead of ICE”, “Motor axis”, “Electric motor-half axis”. The general design solutions of the ATV being developed is also presented based on the selected electric drive scheme.

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MODEL STUDIES WITH IDENTIFICATION OF ENERGY EFFICIENT MODES OF FUNCTIONING OF MAIN FAN UNITS

Electromechanical and energy saving systems ◽

10.30929/2072-2052.2021.2.54.40-46 ◽

2021 ◽

Vol 2 (53) ◽

pp. 40-46

Author(s):

I. Sinchuk ◽

◽

I. Peresunko ◽

A. Somochkyn

Keyword(s):

Energy Efficiency ◽

Electric Drive ◽

Electric Motor ◽

Iron Ore ◽

Electrical Energy ◽

Multilevel Converter ◽

Model Studies ◽

Start Up ◽

Priority Direction ◽

Very High

Purpose. The paper analyzes the system and methods of starting synchronous electric motors of fans of the main ventilation of iron ore mines. It is concluded that it is necessary to modernize the method of starting a synchronous electric motor, despite the fact that the installed direct start-up system has a number of disadvantages, and negatively affects the energy indicators of the electromechanical complex of the main ventilation fan of mines. The priority direction in solving the complex of the above problems is the use of modern achievements in the field of semiconductor conversion technology, in terms of the development of effective circuits and methods for starting and controlling a synchronous electric drive. Originality. The method of separate regulation of size and frequency of output voltage of the multilevel converter of a clock at quasi-frequency start of the synchronous electric drive is offered, limits admissible values of starting currents to admissible values. Methodology. Simulation of transient processes of starting a synchronous electric motor with step-by-step changes in voltage and frequency of supply, which made it possible to determine the energy efficiency of this method. Result. A new method of starting with a step-by-step change in the voltage and frequency of a synchronous motor is proposed. The modeling of the proposed starting method for a synchronous electric motor with a fan torque on the motor shaft was carried out, while it allowed to get rid of the main drawback, namely, a large starting current and made it possible to increase the energy efficiency of the electromechanical complex of the main ventilation fans due to the fact that the consumed active energy during start-up will decrease approximately 50% compared to a direct starting system. Practical value. The proposed method and the obtained results of the study made it possible to prove that the effectiveness of the proposed method is very high and this will save most of the electrical energy when starting the fans of the main ventilation of iron ore mines. Figures 15, references 15

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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

ENGINEERING, ENERGY, TRANSPORT AIC ◽

10.37128/2520-6168-2021-3-16 ◽

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.

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