scholarly journals Electric network topology and method of transmission of electric energy

2019 ◽  
Vol 21 (4) ◽  
pp. 95-103
Author(s):  
N. I. Smolentsev ◽  
L. M. Chetoshnikova
Keyword(s):  
Energy Storage ◽  
Network Topology ◽  
Information Technologies ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Network ◽  
Energy Storage Devices ◽  
Electric Networks ◽  
Storage Devices ◽  
Asynchronous Method

The purpose of the work is to reduce losses and increase energy saving in electric networks. To achieve this goal, a multilevel topology of the electrical network and an asynchronous method for transferring electrical energy between nodes including a load, energy sources, energy storage devices connected in an appropriate manner are proposed. It is shown by the mathematical method that this network topology allows using energy storage devices controlled appropriately and using tele-information technologies to optimize the balance of electric energy in the network, achieving equality of the generated and consumed electricity. Such a network topology and a method of transmitting electrical energy can be the basis of digital technologies in the energy sector (ENERNET).

scholarly journals Electric Energy Storage Solution for Standalone Photovoltaic and Supercapacitor Applications in Rural Areas

2019 ◽  
Vol 8 (11) ◽  
pp. 1316-1320
Keyword(s):  
Energy Storage ◽  
Rural Areas ◽  
System Modeling ◽  
Electric Energy ◽  
Electrical Energy ◽  
Maximum Power ◽  
Energy Storage Devices ◽  
Super Capacitor ◽  
Storage Devices ◽  
Point Tracking

Shortage of electricity is the major issue in many areas in the world. This paper discusses a renewable standalone power system to propose the enhanced energy storage by means of Supercapacitor The enhanced storage lowers the energy shortage that gives reliable power supply in rural areas... Maximum power point tracking technique (MPPT) control algorithm is performed over the photovoltaic (PV) as the main energy source to trace the maximum power. Supercapacitor, Battery are the main energy storage devices these are not only energy storage devices which supplies the electrical energy. The system is simulated using the MATLAB/SIMULINK tool with different cases of PV, Battery and super capacitor supply. System modeling, sizing and control are discussed here and Simulation studies are presented in this paper

scholarly journals Fabrication and Characterization of Laser Scribed Supercapacitor Based on Polyimide for Energy Storage

2018 ◽  
Vol 778 ◽  
pp. 181-186 ◽  
Author(s):  
Tayyaba Malik ◽  
Shayan Naveed ◽  
Muhammad Muneer ◽  
Mohammad Ali Mohammad
Keyword(s):  
Energy Storage ◽  
Research Work ◽  
Electrical Energy ◽  
Energy Storage Devices ◽  
Super Capacitor ◽  
Storage Devices ◽  
Voltage Sweep ◽  
Tremendous Amount ◽  
The Stability

Recently, supercapacitors have attracted a tremendous amount of attention as energy-storage devices due to their high-power density, fast charge–discharge ability, excellent reversibility, and long cycling life. In this research work, we demonstrate a laser scribed super capacitor based on polyimide (PI) substrate for the storage of electrical energy. PI substrate of thickness 200μm and area 1cm × 1cm was reduced by a laser engraver with a 450 nm wavelength in the form of stackable supercapacitor electrodes. Although, PI itself exhibits non-conductive behavior; however, by laser irradiation we change the surface properties of PI and reduce its resistance. The chemical property of irradiated PI was characterized with XRD where the carbon peak was observed at 2*theta = 25.44, which confirms the reduction of PI material in to a graphene-like substance. The electrical conductivity was analyzed with a probe station and observed to be 1.6mS. Two conductive regions were assembled into a capacitor device by sandwiching a PVA/H3PO4 electrolyte in between. During the charging and discharging characterization of the capacitor device, current density was observed to be 1.5mA/cm2. Capacitance versus voltage analysis was carried out and the device showed 75mF/cm2 against a voltage sweep of ±2V. The galvanostatic charging and discharging curve shows a symmetric behavior with respect to time exhibiting the stability and durability of the device.

scholarly journals Designing Structural Electrochemical Energy Storage Systems: A Perspective on the Role of Device Chemistry

2022 ◽  
Vol 9 ◽  
Author(s):  
Adriana M. Navarro-Suárez ◽  
Milo S. P. Shaffer
Keyword(s):  
Energy Storage ◽  
Inorganic Compounds ◽  
Electrical Energy ◽  
Electrochemical Energy Storage ◽  
Storage Device ◽  
Composite Electrodes ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electrochemical Energy

Structural energy storage devices (SESDs), designed to simultaneously store electrical energy and withstand mechanical loads, offer great potential to reduce the overall system weight in applications such as automotive, aircraft, spacecraft, marine and sports equipment. The greatest improvements will come from systems that implement true multifunctional materials as fully as possible. The realization of electrochemical SESDs therefore requires the identification and development of suitable multifunctional structural electrodes, separators, and electrolytes. Different strategies are available depending on the class of electrochemical energy storage device and the specific chemistries selected. Here, we review existing attempts to build SESDs around carbon fiber (CF) composite electrodes, including the use of both organic and inorganic compounds to increase electrochemical performance. We consider some of the key challenges and discuss the implications for the selection of device chemistries.

PVDF–BaSrTiO3nanocomposites for flexible electrical energy storage devices

2014 ◽  
Vol 3 (6) ◽  
pp. 265-270 ◽  
Author(s):  
Shiva Adireddy ◽  
Venkata Sreenivas Puli ◽  
Samuel Charles Sklare ◽  
Tiffany Jialin Lou ◽  
Brian Charles Riggs ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrical Energy ◽  
Energy Storage Devices ◽  
Electrical Energy Storage ◽  
Storage Devices

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.

Enhancing electrical energy storage capability of dielectric polymer nanocomposites via the room temperature Coulomb blockade effect of ultra-small platinum nanoparticles

2018 ◽  
Vol 20 (7) ◽  
pp. 5001-5011 ◽  
Author(s):  
Liwei Wang ◽  
Xingyi Huang ◽  
Yingke Zhu ◽  
Pingkai Jiang
Keyword(s):  
Energy Storage ◽  
Coulomb Blockade ◽  
Room Temperature ◽  
Electrical Energy ◽  
Electrostatic Energy ◽  
Energy Storage Devices ◽  
Electrical Energy Storage ◽  
Storage Devices ◽  
High Dielectric ◽  
Dielectric Polymer

Introducing a high dielectric constant (high-k) nanofiller into a dielectric polymer is the most common way to achieve flexible nanocomposites for electrostatic energy storage devices.

Sign in / Sign up

Export Citation Format

Share Document