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

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Ayu Sintianingrum, Khairudin, Lukmanul Hakim

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

2014 ◽  
Vol 651-653 ◽  
pp. 1109-1112
Author(s):  
Xiao Ying Chen ◽  
Shu Wen Jia ◽  
Xiang Chen Dai

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.


2020 ◽  
Vol 38 (5) ◽  
pp. 1932-1945 ◽  
Author(s):  
Marwa Ben Slimene ◽  
Mohamed Arbi Khlifi

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.


Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 656 ◽  
Author(s):  
Jaewan Suh ◽  
Minhan Yoon ◽  
Seungmin Jung

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.


Author(s):  
A. A. Belsky ◽  
A. N. Skamyin ◽  
O. S. Vasilkov

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.


Author(s):  
Yabin An ◽  
Tengyu Liu ◽  
Chen Li ◽  
Xiong Zhang ◽  
Tao Hu ◽  
...  

As a promising energy storage system, lithium-ion capacitor (LIC) shows tremendous potential for energy storage devices with high energy density and power density. However, limited by the poor rate performance...


2021 ◽  
Vol 12 (4) ◽  
pp. 205
Author(s):  
Zexin Yang ◽  
Xueliang Huang ◽  
Shan Gao ◽  
Qi Zhao ◽  
Hongen Ding ◽  
...  

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.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Chih-Ping Yang ◽  
Shih-Hao Yu ◽  
Fu-Der Mai ◽  
Tai-Chih Kuo ◽  
Yu-Chuan Liu

AbstractNowadays, solar energy is the most environmentally friendly energy source to drive many chemical reactions and physical processes. However, the corresponding fabrication procedures for obtaining excellent energy-storage devices are relatively complicated and expensive. In this work, we report an innovative strategy on plasmon-activated water (PAW) serving as energy-storage medium from solar energy. The lifetime of the created energetic PAW solution from hot electron transfer (HET) on Au nanoparticles (AuNPs) illuminated with sunshine can last for 2 days, making the energy-storage system is practically available. Encouragingly, the energy-conversion efficiency from the solar energy in the PAW solution is ca. 6.7%. Compared to conventional deionized (DI) water solution, the prepared metastable PAW solution exhibited distinctly higher chemical potential at room temperature. It demonstrates abilities in faster evaporation and enhancing chemical reactions, including hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Our proposed strategy on the simple and cheap energy-storage system based on prepared PAW utilizing solar energy is the first time shown in the literature.


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