Determination of the Reliability of Power Supply Systems in High-Altitude Areas from Hybrid Power Sources Using a Logical-Probabilistic Method Based on a Dynamic Failure Tree

2021 ◽  
Author(s):  
G. R. Titova ◽  
M. I. Malsagov ◽  
A. R. Elbazurov
Keyword(s):  
High Altitude ◽  
Power Supply ◽  
Probabilistic Method ◽  
Dynamic Failure ◽  
Power Sources ◽  
Hybrid Power ◽  
Failure Tree ◽  
Supply Systems

scholarly journals Method for determining the maximum load of consumers in city power supply systems

2019 ◽  
Vol 139 ◽  
pp. 01078 ◽  
Author(s):  
A.G. Saidkhodjaev ◽  
A.M. Najimova ◽  
A.K. Bijanov
Keyword(s):  
Power Supply ◽  
Maximum Load ◽  
High Accuracy ◽  
New Method ◽  
Electrical Networks ◽  
Electric Networks ◽  
Reliable Determination ◽  
Supply Systems

In this article, we propose a new method for determining the maximum load of electric consumers in urban electric networks, which differs from existing methods in more accurate and reliable determination of the maximum loads. Based on the determination of the maximum loads of the objects of urban electrical networks, it is concluded that the proposed methods are determined by high accuracy and minor errors.

The Design of an Independent Power Supply Applied to the Isolated Island

2012 ◽  
Vol 614-615 ◽  
pp. 1759-1765
Author(s):  
Yi Cheng Chen ◽  
Zhi Xin Wang
Keyword(s):  
Environmental Factors ◽  
Power System ◽  
Power Supply ◽  
Power Sources ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Renewable Power ◽  
Independent Power Supply ◽  
Electricity Load ◽  
Power Wave

This article aims to make a design of the power supply for an isolated island that has difficulty in realizing the connection with the mainland power grid. An independent hybrid power system consisting of varieties of renewable power sources including solar power, wind power, wave energy and batteries are introduced. This system is dedicated to make the forecast of the electricity load of the island according to the environmental factors and the electricity demand of the island. Then it builds the basic framework and models of hybrid power system on the basis of the forecast and finds out the appropriate method to optimize the power supply.

scholarly journals Timely determination of static stability margins in power supply systems equipped with distributed generation installations

2021 ◽  
Vol 25 (1) ◽  
pp. 31-43
Author(s):  
Yu. N. Bulatov ◽  
A. V. Kryukov ◽  
К. V. Suslov ◽  
A. V. Cherepanov
Keyword(s):  
Distributed Generation ◽  
Power Supply ◽  
Computer Modelling ◽  
Dynamic Modelling ◽  
Electrical Network ◽  
Electrical Networks ◽  
Stability Margins ◽  
Emergency Control ◽  
Supply Systems

The article aims to develop a methodology to ensure timely determination of the margins of static aperiodic stability in power supply systems, at the nodal points of which distributed generation units are installed. The authors used mathematical methods and algorithms based on the application of limiting regime equations. Transitional processes were analysed for various points in the space of controlled mode parameters according to the simulation modelling in Matlab using the Simulink and SimPowerSystems packages. On the basis of the obtained results, an effective technique for analysing stability margins in electrical networks with distributed generation units was implemented. This method is applicable in design problems, as well as in operational and emergency control. The conducted theoretical analysis and computer modelling showed the effectiveness of the proposed methodology for calculating stability margins; the nondegeneracy of the Jacobi matrix of limiting regime equations at the solution point ensures the guaranteed reliability of the results. It was shown that an alternative approach to solving the problem of timely determination of aperiodic stability margins can be implemented on the basis of limiting regime equation with increased nonlinearity. Dynamic modelling of an electrical network with distributed generation units confirmed the correctness of determining the stability margins calculated using limiting regime equations. The developed technique can be recommended for practical use in the design of power supply systems or in operational control of synchronous generators. In particular, the presented methodology can be used to implement a multi-agent emergency control system for distributed generation installations located in generalpurpose distribution electrical networks. 

scholarly journals Improving quality of ac electric power supply of autonomous power sources using in agriculture

2020 ◽  
Vol 193 ◽  
pp. 01024
Author(s):  
Olga Milashkina ◽  
Vadim Zlobin
Keyword(s):  
Power Supply ◽  
Voltage Regulation ◽  
Voltage Regulators ◽  
Electricity Supply ◽  
Control Laws ◽  
Power Sources ◽  
Electric Power Supply ◽  
Use Of Technology ◽  
Supply Systems

Autonomous AC electricity supply systems are now widely introduced in agriculture. As the experience of operation of these electricity supply systems has shown, their various properties, determined largely by the type of voltage regulators and sensors used, do not always fully meet the constantly growing requirements for the quality of electricity. Further improvement of voltage regulation systems, and, consequently, the quality of electricity, is associated with the use of technology in them that can implement optimal control laws.

scholarly journals Determination of optimal location for installation of symmetry facilities in 0.4 kV power supply systems with motor-drive load

2018 ◽  
Vol 58 ◽  
pp. 03014
Author(s):  
Victoria Romanova
Keyword(s):  
Power Supply ◽  
Asynchronous Motor ◽  
Optimal Location ◽  
Economic Feasibility ◽  
Motor Drive ◽  
Capacity Loss ◽  
Electrical Grids ◽  
Cross Platform ◽  
Supply Systems

This article considers the issue for creation of computer-aided program designed for determination of optimal location for installation of symmetry facilities in 0.4 kV power supply systems with motor-drive load in conditions of asymmetry of voltages. The developed program is implemented by means of C# programing language in Microsoft Visual Studio 2012 programming environment using the embedded cross-platform data base SQLite. The program is designed for making electrotechnical calculations during designing, modernization and operation of electrical grids with available motor drive load. It ensures plotting of schematic circuits for 0.4 kV power supply system sections with installed symmetry facilities. The program will enable quick and exact calculation of power capacity loss, determination of economic feasibility for taking special measures to eliminate the asymmetry of voltages, and to determine optimal application and location of symmetry facilities. Using the program in motor-drive load power supply systems will enhance the asynchronous motor reliability and efficiency.

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