scholarly journals Increase the reliability of power supply by using mechanical energy storage devices for low-power consumers

2021 ◽  
Vol 288 ◽  
pp. 01060
Author(s):  
Nasullo Sadullaev ◽  
Shukhrat Nematov ◽  
Mukhiba Gafurova
Keyword(s):  
Energy Storage ◽  
Wind Energy ◽  
Low Power ◽  
Power Supply ◽  
Storage Systems ◽  
Mechanical Energy ◽  
Storage System ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Elastic Cord

The article analyzes the possibilities of using wind energy in Uzbekistan and studies the possibility of using energy storage devices to build a reliable electricity supply in the regions. In areas with weak winds, a device that first stores wind energy and then generates alternating electricity has been proposed. Energy storage systems have been analyzed, and it is recommended to use mechanical energy storage systems in the energy system consisting of renewable energy sources in the Republic of Uzbekistan. It has been noted that the use of such devices is particularly effective in areas far from centralized power supply, where power supply is not available or where reliability is low. An experimental model of a mechanical energy storage device using an elastic cord braid in a storage system and some equations for its design are given. The possibility and necessity of using this storage system is highly valued in our country. Despite the low power of the original model of the device, it is possible to achieve high results in the future by conducting research in this area and changing the type and composition of the elastic cord. This article presents the results of preliminary research on the development of a new design of mechanical energy storage devices using mechanical elastic cord.

Direct Fabrication of Posphorus-Doped Nickel Sulfide and Eco-Friendly Biomass-Derived Humic Acid as Efficient Electrodes for Energy Storage Applications

2021 ◽  
Author(s):  
Farzaneh Hekmat ◽  
Mahdiyeh Shahi ◽  
Saeed Shahrokhian
Keyword(s):  
Energy Storage ◽  
Humic Acid ◽  
Wind Energy ◽  
High Performance ◽  
Nickel Sulfide ◽  
Storage Systems ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Direct Fabrication ◽  
Energy Storage Applications

Development of renewable energies is in parallel with improving high-performance energy storage devices, which can store the maximum solar or wind energy and power. Herein, asymmetric energy storage systems are...

scholarly journals Energy storage systems based on endoskeleton structuring

2016 ◽  
Vol 4 (34) ◽  
pp. 13228-13234
Author(s):  
Inho Nam ◽  
Jongseok Park ◽  
Seongjun Bae ◽  
Soomin Park ◽  
Young Geun Yoo ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electric Vehicles ◽  
Storage Systems ◽  
Energy Sources ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Safety Issues ◽  
Storage Technology ◽  
Energy Storage Technology ◽  
New Energy

The new energy storage technology proposed here includes an endoskeleton architecture similar to vertebrates, which (1) provides flexibility for future mobile/human integrated electrics, (2) ensures the scalability of devices for the storage of fluctuating energy sources and (3) solves safety issues associated with energy storage devices in electric vehicles.

The Micro Grid Energy Sorage System with the Combination of APF Device Research

2014 ◽  
Vol 651-653 ◽  
pp. 1109-1112
Author(s):  
Xiao Ying Chen ◽  
Shu Wen Jia ◽  
Xiang Chen Dai
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Active Power Filter ◽  
Energy Storage System ◽  
Utilization Rate ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Power Filter ◽  
Investment Cost ◽  
Micro Grid

In order to control the micro harmonic, maintain the micro-grid power balance, make it operate more safe, reliable, using the micro grid energy storage system and the active power filter in combination is put forward, so as to achieve the improvement of micro grid power quality, improve the utilization rate of energy storage devices and save the investment cost. The method is to simulated by the MATLAB to verify the feasibility.

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.

scholarly journals Environmental Benefit and Investment Value of Hydrogen-Based Wind-Energy Storage System

2021 ◽  
Vol 9 ◽  
Author(s):  
Qing Xue ◽  
Zhen Wang ◽  
Yuqing Zhang
Keyword(s):  
Energy Storage ◽  
Wind Energy ◽  
Wind Power ◽  
Storage Systems ◽  
Storage System ◽  
Energy Storage System ◽  
Hydrogen Energy ◽  
Energy Storage Systems ◽  
Electricity Prices ◽  
Investment Value

Alongside the rapid expansion of wind power installation in China, wind curtailment is also mounting rapidly due to China’s energy endowment imbalance. The hydrogen-based wind-energy storage system becomes an alternative to solve the puzzle of wind power surplus. This article introduced China’s energy storage industry development and summarized the advantages of hydrogen-based wind-energy storage systems. From the perspective of resource conservation, it estimated the environmental benefits of hydrogen-based wind-energy storages. This research also builds a valuation model based on the Real Options Theory to capture the distinctive flexible charging and discharging features of the hydrogen-based wind-energy storage systems. Based on the model, simulation results, including the investment value and operation decision of the hydrogen energy storage system with different electricity prices, system parameters, and different levels of subsidies, are presented. The results show that the hydrogen storage system fed with the surplus wind power can annually save approximately 2.19–3.29 million tons of standard coal consumption. It will reduce 3.31–4.97 million tons of CO2, SO2, NOx, and PM, saving as much as 286.6–429.8 million yuan of environmental cost annually on average. The hydrogen-based wind-energy storage system’s value depends on the construction investment and operating costs and is also affected by the mean-reverting nature and jumps or spikes in electricity prices. The market-oriented reform of China’s power sector is conducive to improve hydrogen-based wind-energy storage systems’ profitability. At present, subsidies are still essential to reduce initial investment and attract enterprises to participate in hydrogen energy storage projects.

scholarly journals CONSTANT POWER CONTROL OF 15 DFIG WIND TURBINES WITH ENERGY STORAGE

2013 ◽  
pp. 107-114
Author(s):  
PHANEENDRA. V ◽  
RAMA SEKHARA REDDY. M ◽  
VIJAYA KUMAR. M
Keyword(s):  
Energy Storage ◽  
Wind Energy ◽  
Power Control ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Wind Farm ◽  
Active Power ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Control Scheme

Wind turbine generators (WTGs) are usually controlled to generate maximum electrical power from wind under normal wind conditions. With the increasing penetration of wind power into electric power grids, energy storage devices will be required to dynamically match the intermittency of wind energy. To meet the requirements of frequency and active power regulation, energy storage devices will be required to dynamically match the intermittency of wind energy. A novel twolayer constant-power control scheme for a wind farm equipped with doubly-fed induction generator (DFIG) wind turbines. Each DFIG wind turbine is equipped with a supercapacitor energy storage system (ESS) and is controlled by the low-layer WTG controllers and coordinated by a high-layer wind-farm supervisory controller (WFSC). The WFSC generates the active-power references for the low-layer WTG controllers according to the active-power demand from the grid operator; the low-layer WTG controllers then regulate each DFIG wind turbine to generate the desired amount of active power, where the deviations between the available wind energy input and desired active power output are compensated by the ESS. Simulation studies are carried out in PSCAD/EMTDC on a wind farm equipped with 15 DFIG wind turbines to verify the effectiveness of the proposed control scheme.

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