scholarly journals Method for Determining the Optimal Capacity of Energy Storage Systems with a Long-Term Forecast of Power Consumption

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7098
Author(s):  
Nikita Dmitrievich Senchilo ◽  
Denis Anatolievich Ustinov
Keyword(s):  
Energy Storage ◽  
Power Consumption ◽  
Peak Power ◽  
Storage System ◽  
Electricity Consumption ◽  
Energy Storage Devices ◽  
Tree Model ◽  
Storage Devices ◽  
Term Forecast

The unevenness of the electricity consumption schedule at enterprises leads to a peak power increase, which leads to an increase in the cost of electricity supply. Energy storage devices can optimize the energy schedule by compensating the planned schedule deviations, as well as reducing consumption from the external network when participating in a demand response. However, during the day, there may be several peaks in consumption, which lead to a complete discharge of the battery to one of the peaks; as a result, total peak power consumption does not decrease. To optimize the operation of storage devices, a day-ahead forecast is often used, which allows to determine the total number of peaks. However, the power of the storage system may not be sufficient for optimal peak compensation. In this study, a long-term forecast of power consumption based on the use of exogenous parameters in the decision tree model is used. Based on the forecast, a novel algorithm for determining the optimal storage capacity for a specific consumer is developed, which optimizes the costs of leveling the load schedule.

Recent Trends in Template Assisted 3D Porous Materials for Electrochemical Supercapacitors

2021 ◽  
Author(s):  
Nilimapriyadarsini Swain ◽  
Saravanakumar Balasubramaniam ◽  
Manab Kundu ◽  
Lukas Schmidt-Mende ◽  
Ananthakumar Ramadoss
Keyword(s):  
Energy Storage ◽  
Porous Materials ◽  
Power Density ◽  
High Power ◽  
High Power Density ◽  
Electrochemical Supercapacitors ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Recent Trends

Supercapacitors have emerged as an outstanding candidate among numerous energy storage devices because of their long-term cycle life, high power density, and minimal safety concerns. As we know, the lower...

Flexible supercapacitors with high capacitance retention at temperatures from -20 to 100 oC based on DMSO-doping polymer hydrogel electrolytes

2021 ◽  
Author(s):  
Ya-Nan Liu ◽  
Huili Li ◽  
Xue Wang ◽  
Tian Lv ◽  
Keyi Dong ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Density ◽  
High Power ◽  
High Power Density ◽  
Energy Storage Devices ◽  
High Capacitance ◽  
Storage Devices ◽  
Flexible Supercapacitors ◽  
Cycling Life

Flexible supercapacitors have attracted increasing interests due to their high power density, long-term cycling life and excellent safety. Liking other energy storage devices, flexible supercapacitors show serious performance degradation as...

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 Modelling and study of energy storage devices for photovoltaic lighting

2020 ◽  
Vol 38 (5) ◽  
pp. 1932-1945 ◽  
Author(s):  
Marwa Ben Slimene ◽  
Mohamed Arbi Khlifi
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Energy Storage System ◽  
Electricity Production ◽  
Solar Panels ◽  
Energy Storage Devices ◽  
Pv System ◽  
Super Capacitor ◽  
Storage Devices ◽  
Lighting Energy

The electricity production via these sources of energy, offers a bigger safety of supply to the consumers while respecting the environment. For that reason, the principal objective of this paper is to study and control the photovoltaic lighting energy storage system. We presented the study of the whole PV system such as solar panels, DC chopper, batteries with account of all conditions of the sites of installation (period of sunshine and temperature). This study analyzed the integration of a photovoltaic power plant, super capacitor energy storage system, and lightning system. Our approach of sizing is based on the modeling of various components describing the functioning of every part of the installation among others. We can mention the production, the consumption and the storage of energy through solar battery.

scholarly journals Practical Application Study for Precision Improvement Plan for Energy Storage Devices Based on Iterative Methods

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 656 ◽  
Author(s):  
Jaewan Suh ◽  
Minhan Yoon ◽  
Seungmin Jung
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Storage System ◽  
Energy Storage System ◽  
Management Plan ◽  
Ocean Energy ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Transient Electromagnetic ◽  
Combined Solution

In the aspect of power grid, attention is being given to conditions of environmental variation along with the need for precise prediction strategies based on control elements in recently designed large-scale distributed generation systems. With respect to distributed generators, an operational prediction system is used to respond to the negative impacts that could be generated. As an active response plan, efforts are being made by system operators to cover fluctuations with utilization of battery-based storage devices. Solar or ocean energy that shares electrical structure with an energy storage system has recently being seen as a combined solution. Although this structure is supported by a state analysis plan, such methods must be performed within the range where the response is possible under consideration of the power requirements of the electronic devices. This paper focuses on an iterative based solution for enhancing response of storage that included in DC generation system, to check its availability in terms of possible calculation load. A previous storage management plan was utilized and tested using a commercially available transient electromagnetic simulation tool that focused on possible delays. Case studies were performed sequentially on the time delays based on utilizable inverter topologies.

scholarly journals The Use of Hybrid Energy Storage Devices for Balancing the Electricity Load Profile of Enterprises

2020 ◽  
Vol 63 (3) ◽  
pp. 212-222
Author(s):  
A. A. Belsky ◽  
A. N. Skamyin ◽  
O. S. Vasilkov
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Energy Storage System ◽  
Energy Storage Devices ◽  
Load Profile ◽  
Storage Devices ◽  
Hybrid Energy ◽  
Hybrid Energy Storage ◽  
Combined Use ◽  
Hybrid Storage System

In this article, the authors consider the possibility of using a hybrid energy storage system to even out the load profile of the enterprise. Solving the problem of rational use of energy storage taking into account the initial variable load schedule will significantly reduce not only the cost of electricity consumption by the enterprise, but also the costs of its production. Detailed characteristics  of  batteries  with  various  types  of  electrolytes  and  supercapacitors  are  given. A model of the active scheme of a hybrid electric energy storage system consisting of a lithium-ion battery and a supercapacitor unit with the corresponding characteristics is presented. The model was carried out by using the SimPowerSystems software in MatLab. During the simulation, the temperature and the aging effects and of the batteries were not taken into account. The selfdischarge parameter of the battery was also not presented. As a result of the simulation, discharge characteristics of supercapacitors and batteries were obtained based upon which the expediency of their combined use for leveling load profiles of various types was substantiated. The paper presents the results of the simulation of operating modes of a hybrid energy storage device, combining the advantages of two types of energy storage devices, as well as a diagram of delivered power to the network, corresponding to the specified parameters. The paper provides a mathematical description of the increasing power by hybrid storage system resulting from the combined use of supercapacitors and batteries. The paper presents the dependence of the power increase ratio on the frequency and the pulse current duty ratio, which proves that the maximum possible output power of the hybrid storage system can be several times greater than the power of a single battery having the same parameters.

scholarly journals Optimization of Microgrid Battery Capacity using PSO with Considering Islanding Operation

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Ayu Sintianingrum, Khairudin, Lukmanul Hakim
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Pso Algorithm ◽  
Energy Storage System ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Battery Capacity ◽  
Effective System ◽  
Islanding Operation ◽  
Storage Technologies

Electrical is used for various activities in all sectors. Rapid increase of electricity demand recently, makes it necessary to have an even more efficient method for generating electricity. Renewable energy and the microgrid provides an integrated and alternative solution for electricity generation. In microgrid systems, energy storage devices are one of important aspects. Batteries are one kind of the energy storage technologies widely used in power system and hence, their suitable capacity must be determined in order to develop an effective system installation. In this research, sizing optimization of battery capacity is modeled as a minimization of microgrid battery capacity using the Particle Swarm Optimization/PSO algorithm with considering islanding operation of the system for effective battery installation. Results show that optimal battery capacity can be obtained and the developed computational model gives satisfactory results for the system under study.   Keywords: Battery, microgrid, energy storage system, PSO algorithm

Nitrogen-doped MnO2 nanorods as cathodes for high-energy Zn-MnO2 batteries

2018 ◽  
Vol 11 (06) ◽  
pp. 1840006 ◽  
Author(s):  
Yalan Huang ◽  
Wanyi He ◽  
Peng Zhang ◽  
Xihong Lu
Keyword(s):  
Energy Storage ◽  
Peak Power ◽  
High Performance ◽  
Electrode Materials ◽  
High Capacity ◽  
High Energy ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Element Doping ◽  
N Doping

The development of manganese dioxide (MnO[Formula: see text] as the cathode for aqueous Zn-MnO2 batteries is hindered by poor capacity. Herein, we propose a high-capacity MnO2 cathode constructed by engineering it with N-doping (N-MnO[Formula: see text] for a high-performance Zn-MnO2 battery. Benefiting from N element doping, the conductivity of N-MnO2 nanorods (NRs) electrode has been improved and the dissolution of the cathode during cycling can be relieved to some extent. The fabricated Zn-N-MnO2 battery based on the N-MnO2 cathode and a Zn foil anode presents an a real capacity of 0.31[Formula: see text]mAh[Formula: see text]cm[Formula: see text] at 2[Formula: see text]mA[Formula: see text]cm[Formula: see text], together with a remarkable energy density of 154.3[Formula: see text]Wh[Formula: see text]kg[Formula: see text] and a peak power density of 6914.7[Formula: see text]W[Formula: see text]kg[Formula: see text], substantially higher than most recently reported energy storage devices. The strategy of N doping can also bring intensive interest for other electrode materials for energy storage systems.

scholarly journals Operation Strategy of Parking Lots Integrated with PV and Considering Energy Price Tags

2021 ◽  
Vol 12 (4) ◽  
pp. 205
Author(s):  
Zexin Yang ◽  
Xueliang Huang ◽  
Shan Gao ◽  
Qi Zhao ◽  
Hongen Ding ◽  
...  
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Energy Storage System ◽  
Energy Price ◽  
Energy Storage Devices ◽  
Pv System ◽  
Parking Lots ◽  
Storage Devices ◽  
Parking Lot ◽  
Priority Order

In recent years, the orderly charging of electric vehicles (EVs) in commercial parking has become a meaningful research topic due to the increasing number of EVs, especially for parking lots close to workplaces and serving fixed users. In this paper, a parking lot energy management system integrated with energy storage system (ESS) and photovoltaic (PV) system is established. The concept of energy price tag (EPT) is introduced to define the price of all energy storage devices, and the priority order between PV, ESS, EVs, and power grid is established. Taking the minimization of charging cost as the optimization objective, the charging plans of ESS, EVs, and buildings are optimized considering the constraints of EVs user demand and PV power. By comparing the simulation results of four cases, it is proven that this strategy can reduce the charging cost and improve the consumption rate of PV.

Sign in / Sign up

Export Citation Format

Share Document