Investigation of the Operation of a Single-Phase Synchronous Vibration Micro Generator and an Uninterrupted Power Supply Source for Autonomous Objects

2020 ◽  
Author(s):  
Kaung Myat Htoo ◽  
Zayar Aung
Keyword(s):  
Power Supply ◽  
Single Phase ◽  
Supply Source ◽  
Uninterrupted Power Supply ◽  
Power Supply Source ◽  
Autonomous Objects

Development of a Power Supply Source for the Technological Electron-beam Gun Control Electrode

Vestnik MEI ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 86-92
Author(s):  
Nikita M. Vakhmyanin ◽  
◽  
Aleksey V. Shcherbakov ◽  
Daria A. Gaponova ◽  
◽  
...  
Keyword(s):  
Electron Beam ◽  
Power Supply ◽  
Gun Control ◽  
Supply Source ◽  
Control Electrode ◽  
Power Supply Source

scholarly journals Automatic System of Synchronous Connection of Backup Power Supply Source in Power Systems with Motor Load

2020 ◽  
Vol 20 (4) ◽  
pp. 36-42
Keyword(s):  
Power Systems ◽  
Power Supply ◽  
Automatic System ◽  
Supply Source ◽  
Power Sources ◽  
Industrial Enterprises ◽  
Experimental Stand ◽  
Asynchronous Motors ◽  
Power Supply Source ◽  
Fast Acting

We developed an automatic system of synchronous connection of a backup power supply source in power systems with synchronous and asynchronous motors in case of power loss from the main source. Here, we propose performing continuous monitoring of the instantaneous voltage values of the main and backup power sources and determining the angle between them. The time to send the command to turn the backup power switch on is determined on the basis of the results of approximating the dependence of the angle between the voltages of the main and backup power sources on time. The proposed algorithm can be used in microprocessor fast-acting automatic transfer switch devices to ensure acceptable levels of currents of stators and electromagnetic moments of electric motors in self-starting modes and to maintain a complex continuous technolo­gical process at industrial enterprises. The effectiveness of the developed automatic system of synchronous connection of a backup power supply source has been confirmed using mathematical modeling methods and laboratory tests at an experimental stand.

scholarly journals Justification of the Parameters of a DC/DC Converter for an Autonomous Power Supply Source

2020 ◽  
Vol 20 (4) ◽  
pp. 86-95
Keyword(s):  
Power Supply ◽  
Electric Power Industry ◽  
Active Phase ◽  
Input Voltage ◽  
Energy Storage Devices ◽  
Supply Source ◽  
Power Sources ◽  
Storage Devices ◽  
Voltage Change ◽  
Power Supply Source

As the Smart Grid concept has become a part of the electric power industry development, DC/DC conver­ters have turned into a matter of increased interest. This is due to their effective coordination in the DC-bus system operating different types of power sources, including renewable ones and energy storage devices (batteries, supercapacitor modules), and various loads. The article analyzes switch mode power supply DC/DC converters for autonomous power supply systems. The application of the SEPIC (Single Ended Primary Inductance Converter) type converter is substantiated. The techniques of determining the parameters of the converter are presented. The active phase at the duty cycle operation has been demonstrated, and justified in accordance with the theoretical behavior in response to an input voltage change above and below the desired output value. A simulation of the converter's operation in the buck and boost modes in order to stabilize the output voltage at a set level has been performed in the MATLAB / Simulink package. The obtained simulation results show the effectiveness of the suggested solution for an autonomous power supply source.

scholarly journals Development of a mathematical model of an autonomous power supply source with a free piston motor on the basis of a synchronous electric returning machine with a permanent magnets

2020 ◽  
Vol 22 (1) ◽  
pp. 38-48
Author(s):  
A. R. Safin ◽  
I. V. Ivshin ◽  
E. I. Gracheva ◽  
T. I. Petrov
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Power Plants ◽  
Permanent Magnets ◽  
Combustion Engine ◽  
Design Parameters ◽  
Supply Source ◽  
Free Piston ◽  
Power Supply Source ◽  
The Russian Federation

One of the current trends at present is the development of small energy, which is a particularly urgent task for the Russian Federation with its vast territories and the specifics of the electric power system. In the Russian Federation, the bulk of the electricity is generated at large power plants and transmitted through power lines. 60–70% of the country's territory lacks a centralized power supply, where more than 20 million people live, and the development of small and micro-energy facilities is necessary. Using a synchronous electric reciprocating machine with permanent magnets in power plants of a modular type makes it possible to rationally design an autonomous power supply source, to obtain the most optimal design. The development of methodological design decisions and the optimization of engine design parameters as part of generating and drive complexes is an important scientific task. A mathematical description of thermodynamic processes in a free-piston internal combustion engine, electromechanical and thermal processes occurring in a synchronous electric reciprocating machine with permanent magnets is developed, which is a necessary condition for designing and optimizing the design of an autonomous electric power complex. According to theoretical calculations, in the Matlab application, on the basis of the additional Simulink module, a simulation model of a free-piston internal combustion engine, linear current load calculation units, stator magnetic induction, magnetic induction created by permanent inductor magnets, electromagnetic force were developed and calculated. The created procedure for calculating the parameters of the electromagnetic component of the force of a synchronous machine with permanent magnets allows you to calculate and optimize the design parameters of the inductor and stator element of the electric motor under consideration. Thus, this will allow us to design electric machines with improved energy characteristics, due to the use of the obtained simulation results, which will allow us to use them more efficiently in the composition of generating and drive complexes.

scholarly journals Selection of Best Power Supply Source for Telecom Towers in Remote Areas

2020 ◽  
Vol 5 (5) ◽  
pp. 913-925
Author(s):  
Shwetank Avikal ◽  
Rahul Singhal ◽  
Rajat Sajwan ◽  
Rahul Kumar Tiwari ◽  
Rohit Singh
Keyword(s):  
Power Supply ◽  
Fuzzy Ahp ◽  
Operating Cost ◽  
Energy System ◽  
Maintenance Cost ◽  
Diesel Generator ◽  
Supply Source ◽  
Remote Areas ◽  
Power Supply Source ◽  
Diesel Generators

Installation of telecom towers in remote areas especially in developing countries like India is a major problem for telecom industries because of the unavailability of reliable power supply. The grid supply is not regular in these countries and up to some extent, they are dependent on diesel generators for power supply. But these diesel generators have some major issues such as high operating cost due to high cost of fuel, transportation cost of fuel, high maintenance cost, and these diesel generators also emits pollution to the environment. In presented work, an approach has been proposed for telecom companies for providing power supply to their telecom towers. An economic cost analysis has been proposed by considering various criteria such as cost, air & noise pollution and reliability, etc. Some power supply alternatives including unconventional and hybrid of conventional and unconventional alternatives have been compared to find the solution such as diesel-powered telecom towers, solar powered telecom towers, and their hybrids. The main objective of this work is to provide a reliable, cost effective and environment friendly Remote Area Power Supply (RAPS) system for a particular site in India (Uttar Pradesh). A number of criteria are involved in discussed problem in order to select an effective power supply source. Therefore, the problem has been considered as a Multi Criteria Decision Making (MCDM) problem. To select the best alternative, a Fuzzy AHP and TOPSIS based approach has been proposed. Fuzzy AHP (Analytic Hierarchy process) has been used for calculating the weightage of criteria and the concept of Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) has been applied for ranking the alternatives. The results give assured reliability and sustainability for remote areas using a solar photovoltaic (PV)-diesel generator hybrid energy system.

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