Hökelek, İsmail Harun
There are many challenges associated with the integration of Battery Energy Storage Systems (BESS) into the power system. Some of these challenges are determining the sizing of BESS and finding the optimum placement of these devices in the grid. The primary motivation of this study is to handle the placement and sizing problem of BESS. In the vast majority of studies, the optimum BESS locations have been found by calculating loss sensitivity factor (LSF) under peak load conditions. However, this approach will not give the optimum location of storage devices since it does not cover both the charging and discharging operation modes of BESS. To overcome this problem, a revised approach that considers both operation modes of battery has been performed, and this method is referred to as ΔLSF in this thesis. The ΔLSF method was implemented on three test systems, and the results were verified by load flow analysis. In addition, a cost-benefit analysis method has been applied to find the capacity and power ratings of BESS. In this study, placement and sizing methods are based on storing energy when the electricity market price is low and returning the stored energy to the grid during peak price hours to obtain financial savings. Grid losses reduction due to BESS operation has also been considered in savings. In the cost-benefit analysis, numerical calculation results were given to verify that the financial savings cover the investment cost of the battery. Simulations and analysis calculations have been implemented on MATLAB environment.


Adaptation of Renewable Based Power Plants to the Energy Market Using Battery Energy Storage Systems
Durna, E.; Parlak, D.; Logoglu, E. Uz; Gercek, C. O. (2014-10-22)
This paper presents a method for the adaptation of a wind power plant to the energy market using battery energy storage systems (BESS) to show the feasibility of using fast-response batteries, and to calculate its payback period. The proposed method is also used to investigate the optimum battery size according to the installed capacity of the wind farm based on the price and wind forecast, and arbitrage opportunity so as to maximize the profit of the investor. The profit obtained from the market by the bat...
Modeling of reaction and degradation mechanisms in lithium-sulfur batteries
Erişen, Nisa; Külah, Görkem; Department of Chemical Engineering (2019)
Lithium-sulfur batteries are promising alternatives for the energy storage systems beyond Li-ion batteries due to their high theoretical specific energy (2567 Wh/kg) in addition to the natural abundancy, non-toxicity and low cost of sulfur. The reaction and degradation mechanisms in a Li-S battery include various electrochemical and precipitation/dissolution reactions of sulfur and polysulfides; however, the exact mechanism is still unclear. In this study, the effect of critical cathode design parameters su...
Numerical investigation of a stand alone solar hydrogen energy system effects of PEFC degradation
Ender, Ozden; Tarı, İlker (null; 2015-08-12)
An existing stand-alone solar energy system producing hydrogen for energy storage is numerically investigated focusing on the degradation of Polymer Electrolyte Fuel Cell (PEFC) and its effects on the overall performance of the system. The system consists of Photovoltaic (PV) panels, polymer electrolyte based electrolyzers, H2 and O2 storage tanks and a commercial PEFC stack. A PEFC is numerically investigated both as new and as degraded (for about two years). Using a variety of observed degradation pattern...
All-Organic Electrochromic Supercapacitor Electrodes
YÜKSEL, Recep; CEVHER, ŞEVKİ CAN; Çırpan, Ali; Toppare, Levent Kamil; Ünalan, Hüsnü Emrah (The Electrochemical Society, 2015-01-01)
The need for determining the instant capacity of an energy storage device has led to the integration of an indicator gauge in batteries. Consumers only have to press the contact points on the battery to activate a thermochromic indicator, which measures the heat resistance of the device. This can be implemented in a supercapacitor through electrochromism, eliminating the necessity to press on the contact points. With this motivation, here we report on the fabrication and characterization of all-organic mult...
Spacecraft energy storage and attitude control
Altay, A; Tekinalp, Ozan (2005-06-11)
The energy storage and attitude control technologies in spacecrafts are considered. The conventional technologies like electrochemical batteries, reaction wheels and control moment gyroscopes are compared to the promising Integrated Power and Attitude Control System with Variable Speed Control Moment Gyros (IPACS-VSCMG) technology. For this purpose, various energy storage and attitude control system conceptual designs are carried out, and the results are compared. Also given a simulation to show the effecti...
Citation Formats
İ. H. Hökelek, “OPTIMUM PLACEMENT AND COST-BENEFIT ANALYSIS OF BATTERY ENERGY STORAGE SYSTEMS,” M.S. - Master of Science, Middle East Technical University, 2022.