Influence of tooth harmonics on the dynamic characteristics of the electric drive of pumping units

2017 ◽  
Author(s):  
Oleg A. Lysenko
Keyword(s):  
Dynamic Characteristics ◽  
Electric Drive ◽  
Pumping Units

SIMULATION OF SOFT START OF SYNCHRONOUS ELECTRIC DRIVES

2019 ◽  
Author(s):  
Shakhboz Dadabaev
Keyword(s):  
Computer Simulation ◽  
Electric Drive ◽  
Water Supply Systems ◽  
Factors Affecting ◽  
Electric Drives ◽  
Soft Start ◽  
Simulation Results ◽  
Pumping Units ◽  
Negative Factors ◽  
Supply Systems

The main negative factors affecting the starting modes of synchronous electric drives of pumping units of irrigation water supply systems were identified, computer simulation of direct and soft start of synchronous electric drive was made, the simulation results are shown in graphs and a brief conclusion was made on the study.

scholarly journals Computer Modeling of Pumping Station with Unregulated Electric Drive

2020 ◽  
Vol 220 ◽  
pp. 01039
Author(s):  
Shakhboz Dadabaev ◽  
Elena Gracheva
Keyword(s):  
Electric Drive ◽  
Electromagnetic Torque ◽  
Electric Motors ◽  
Motor Speed ◽  
Electric Drives ◽  
Pumping Station ◽  
Soft Start ◽  
Soft Starter ◽  
Pumping Units ◽  
Static Torque

The results of the analysis of transient and technological processes of the irrigation pumping station of the first lift, taking into account the negative starting effects on the synchronous electric drive, are considered. The analysis and review of the ways of regulating the performance of the units of the irrigation pumping station of the first lift are made, and the main difficulties of the existing methods of regulating the pump supply are revealed. Computer simulation of starting modes of high-voltage synchronous electric motors with direct and soft start, where soft starter was used for soft start, was carried out. The simulation took into account the changes in the currents of all phases of the electric motor, the electromagnetic torque, the motor speed, the effective value of the current, as well as the static torque. The introduction of semiconductor soft starters for electric drives of high-power pumping units has been substantiated.

Effect of the elasticity of the mechanical part of an extruder takeup shaft on the dynamic characteristics of the electric drive

2010 ◽  
Vol 42 (1) ◽  
pp. 63-67
Author(s):  
A. E. Polyakov ◽  
K. A. Polyakov ◽  
N. K. Pavlov ◽  
I. N. Seryakov ◽  
L. A. Kozlova
Keyword(s):  
Dynamic Characteristics ◽  
Electric Drive ◽  
Mechanical Part

scholarly journals Study of the Processes of Near Identical, Nanoprene, Neuro Progenitor Electric Drive

2019 ◽  
Vol 56 (1) ◽  
pp. 29-40
Author(s):  
Viktor M. Buyankin
Keyword(s):  
Neural Network ◽  
Dynamic Characteristics ◽  
Electric Drive ◽  
Error Propagation ◽  
Signal Transmission ◽  
Direct Signal ◽  
Static And Dynamic Characteristics ◽  
The Neural Network

Abstract The article deals with the artificial multilayer neural network with direct signal transmission and reverse error propagation, which operates in the mode of identification of static and dynamic characteristics of the electric drive. To study processes of nearly identical, nanoprene of neuroprogenitor has been developed by the research stand, which is described in the article. As a result of research on the stand, the results show that the neural network is well enough to identify the static and dynamic characteristics of the electric drive.

scholarly journals Improving the Efficiency of Distributed Water Supply Systems by Means of an Adjustable Electric Drive

2021 ◽  
Vol 24 (5) ◽  
pp. 19-34
Author(s):  
Mykola Moshnoriz ◽  
Serhiy Babiy ◽  
Alexander Payanok ◽  
Alexey Zhukov ◽  
Dmytro Protsenko
Keyword(s):  
Water Supply ◽  
Control Systems ◽  
Electric Drive ◽  
Electrical Network ◽  
Effective Control ◽  
Water Supply Systems ◽  
Pipeline Network ◽  
Pumping Station ◽  
Pumping Units ◽  
The Impact

The water supply of the pumping station must meet the needs of the consumer which change during the day. Therefore, its performance needs to be adjusted. Any deviation of the pump unit’s performance from the nominal value leads to additional energy costs. Under such conditions, great importance is paid to optimising the operation of electric drives of the water supply pumping station. To regulate the performance of a pumping station, it is often resorted to changing the number of operating pumping units, the engines of which are started directly from the electrical network. Medium-and high-power engines are subject to technical restrictions for a direct start, which are supplemented by the need to maintain pauses between starts. Therefore, when ensuring the desired value of pumping station performance, it is very important to consider the features of starting pump engines. Control systems are widely used in the field of electric drive and water supply. It is in these areas that the efficiency of the control system depends on the amount of electricity that will be consumed by the technological process or the reliability of its operation. It is known that pumps account for about half of all energy produced. Therefore, the issue of effective control systems is particularly relevant in the field of water supply. The purpose of this study is to increase the reliability and efficiency of the water supply system by considering the distribution properties of the pipeline network when controlling electric pump drives, which will allow coordinating the operation of the pumping station, the pipeline network, and the consumer. To achieve this purpose, the study was conducted to assess the impact of the distribution and length of the pipeline network. The system of water supply and distribution is analysed, what criteria affect the correct performance of work and what problems may arise during operation for a long period of time are investigated. Ways to optimise the operation of pumping stations to increase their energy efficiency and cost-effectiveness of installations are investigated. The main reasons for the expediency of using an adjustable electric drive to control pumping units are considered

scholarly journals COMPACT ROTARY PLATFORM AS A UNIVERSAL LABORATORY STAND

2021 ◽  
pp. 5-13
Author(s):  
Alexander Zamorsky
Keyword(s):  
Dynamic Characteristics ◽  
Electric Drive ◽  
Educational Process ◽  
Analytical Determination ◽  
Instrument Making ◽  
Static And Dynamic Characteristics ◽  
Virtual Device ◽  
Rotary Platform ◽  
Micromechanical Sensors ◽  
Universal Laboratory

A single axis rotary platform is distinguished among the laboratory equipment for testing gyroscopic devices and systems and their sensitive elements. An overview of the design principles of industrially developed stands for the study of static and dynamic characteristics of gyroscopic devices and systems is provided. The scheme of design of the universal laboratory stand is suggested as the compact rotary platform for research of static and dynamic characteristics of micromechanical gyroscopes and accelerometers as sensors of angular speed. The physical components of such a stand and technical and technological problems of its practical implementation are reviewed. The proposed laboratory stand is considered as a cyberphysical system where computing components play a crucial role in determining the parameters of the system and the studied micromechanical sensors. For this purpose, in addition to the physical control loop of the electric drive to ensure the stability of the angular velocity of the platform, an independent measuring loop is considered for analytical determination of system parameters, including the studied micromechanical sensors. The versatility of the stand is ensured by solving the inverse problems, namely determining in the process of testing static and dynamic characteristics of the electric drive and measuring sensors that work on various physical principles. It is assumed that, in addition to solving practical problems of micromechanical sensors in the development of the appropriate information interface of the virtual device, a compact laboratory stand can be effectively used in the educational process during laboratory work in relevant disciplines of instrument making direction.

scholarly journals NEUROIDENTIFICATION WITH NEURO-SELF Tuning TO ENSURE THE OPERATION OF THE CURRENT LOOP OF THE ELECTRIC DRIVE WITH THE DESIRED STATIC ANDDYNAMIC CHARACTERISTICS

2018 ◽  
Vol 15 (30) ◽  
pp. 513-519
Author(s):  
V. M. BUYANKIN
Keyword(s):  
Control Systems ◽  
Dynamic Characteristics ◽  
Electric Drive ◽  
Reference Model ◽  
Control Object ◽  
Current Loop ◽  
Static And Dynamic Characteristics ◽  
Electric Drives ◽  
Self Tuning ◽  
Model Training

The synthesis of neural regulators for control systems of electric drives is considered in the article. The stable work and features of the application of neural regulators in closed circuits are analyzed. Neuroregulators self-adjust when changing the parameters of the control object. Information on the change in the parameters of the control object is compared with the optimal desired characteristics of the reference model, training signals are generated for the neuroregulators, which provide the necessary optimal static and dynamic characteristics of electric drive.

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