scholarly journals The study of the isolated power supply system operation with controlled distributed generation plants, energy storage units and drive load

2021 ◽  
Vol 288 ◽  
pp. 01012
Author(s):  
Yu N Bulatov ◽  
A V Kryukov ◽  
K V Suslov
Keyword(s):  
Energy Storage ◽  
Distributed Generation ◽  
Power Supply ◽  
Renewable Energy Sources ◽  
High Capacity ◽  
Maximum Load ◽  
Combined Use ◽  
Load Increase ◽  
Supply Systems ◽  
Storage Units

Energy storage units (ESU) and distributed generation (DG) plants including those using renewable energy sources can be used to develop isolated power supply systems (IPSS) and enhance their reliability. Operation of DG plants in the IPSS requires to consider restrictions for consumers maximum load, as well as effects of abrupt load increase or load shedding on the generating plants. These problems can be resolved using ESU and intelligent technologies for DG plants control. The paper considers IPSS of an industrial facility with turbogenerator plants (TGP), wind power plant (WPP) and high-capacity ESU for which fuzzy control systems and prognostic controllers were used. The simulation was performed in the MATLAB system using the Simulink and SimPowerSystems software packages. Normal and emergency modes were studied in IPSS with TGP, WPP, and high-capacity ESU. The simulation results indicated that combined use of high-capacity ESU and prognostic controller of TGP generator rotor speed allows to ensure stability and survivability of IPSS enhancing its damping properties. The auto-prognostic controller of the TGP generator, which does not require special adjustment, provides high quality indicators of the IPSS control in all considered modes.

scholarly journals Features of Estimation of Structural Reliability of Power Supply Systems

2019 ◽  
Vol 139 ◽  
pp. 01032
Author(s):  
Boris Papkov ◽  
Vladimir Osokin
Keyword(s):  
Distributed Generation ◽  
Power Supply ◽  
Structural Reliability ◽  
Renewable Energy Sources ◽  
Integral Characteristic ◽  
Electric Power System ◽  
Mathematical Apparatus ◽  
Reliability Indicators ◽  
Demand Changes ◽  
Supply Systems

Development and operation of modern power supply systems of consumers which are the part of distributed generation (DG) systems with their communication with electric power system (EPS) and renewable energy sources (RES) demand changes in estimation of their reliability indicators on the basis of corresponding mathematical apparatus. It is shown that DG systems refer to structures with several overlapping zones of action, which determines their peculiarities, which are represented by some integral characteristic - efficiency of operation, which characterizes the degree of expediency of use of the DG system in different modes. The approach based on evaluation of effectiveness of such systems is offered. Examples of calculation of relatively simple structures of DG systems performing several tasks simultaneously are given.

scholarly journals CALCULATION OF OPTIMAL PARAMETERS FOR STORAGE AND RENEWABLE ENERGY SOURCES IN ISOLATED ENERGY SYSTEMS

2021 ◽  
pp. 91-95
Author(s):  
Mykhailo Syvenko ◽  
Oleksandr Miroshnyk
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Supply Systems

A detailed substantiation of the use of electric energy storage devices in the presence of generators on renewable energy sources in the power supply system is given. The dependence of the storage parameters on the composition and priority of generation in the system is investigated. The solution of the problem of determining the parameters of electricity storage devices by means of purposeful simulation of generation parameters is considered. The results of the choice of power and capacity of the energy storage using technical and economic indicators are shown. Optimal parameters of electric energy storage devices as one of the most important means of ensuring the activity of isolated power supply systems together with selection of generating devices are determined. The results of calculations of capacity of renewable energy sources in isolated power supply systems in combination with classical energy sources are given. The necessity of using the principle of activity of the distribution electric network and the possibility of its realization is demonstrated. The optimal storage capacity as a function of the share of renewable generation, the non-integrated energy produced by renewable sources and the total storage capacity are plotted for several isolated systems. The main points of the used model of the power supply system of isolated networks are given. In the studied isolated power supply systems, wind power plants and solar power plants, which have significant unpredictability of generation, are used as generation based on renewable energy sources. The problem of undersupply of electricity to the grid by stepwise increase of generation is analysed. The results of the multi-step selection of power and energy consumption of electricity storage are determined by technical criteria.

Nickel-cadmium batteries with pocket electrodes as hydrogen energy storage units of high-capacity

2021 ◽  
Vol 39 ◽  
pp. 102597
Author(s):  
Nikolay E. Galushkin ◽  
Nataliya N. Yazvinskaya ◽  
Dmitriy N. Galushkin
Keyword(s):  
Energy Storage ◽  
High Capacity ◽  
Hydrogen Energy ◽  
Storage Units ◽  
Nickel Cadmium

Carbon-Based Slurry Electrodes for Energy Storage and Power Supply Systems

2021 ◽  
Author(s):  
Monjur Mourshed ◽  
Seyed Mohammad Rezaei Niya ◽  
Ruchika Ojha ◽  
Gary Rosengarten ◽  
John Andrews ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Supply ◽  
Supply Systems ◽  
Carbon Based

scholarly journals Mathematical Modeling of Power Supply of an Autonomic Enterprise Based on Wind Power Plants

2018 ◽  
Vol 7 (3.5) ◽  
pp. 4
Author(s):  
Valeri Telegin ◽  
Nikolai Titov ◽  
Anatoli Stepanov
Keyword(s):  
Wind Power ◽  
Power Supply ◽  
Small Businesses ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Geographical Location ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Definition Of ◽  
Supply Systems

Power supply systems for small businesses based on renewable energy sources are most often based on converting wind energy, solar energy and water energy. Calculating its effectiveness is a time-consuming task, requiring the processing of a large amount of data specific for the geographical location of power generating units. In the article the technique of computer modeling of work of a park of wind power plants (WPP) with the purpose of definition of an optimum parity of their parameters is considered.   

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