Publications
Lead-Acid Charge Controller For Stand Alone PV System
Aug 1, 2026Journal Journal of Research in Engineering and Computer Sciences
Publisher Head Start Services for Education and Research
DOI 10.63002/jrecs.401.1270
Issue 01
Volume 4
In this paper, in an autonomous PV system, battery charging control is performed using DC to DC Buck converter. The battery charging procedure is managed by the DC to DC Buck Converter. In order to guarantee that the battery is charged steadily and effectively, MPPT techniques are employed. lead-acid battery is employed as the energy storage unit due to its cost-effectiveness. To make sure the system operates effectively, it must function at the maximum power point (MPP). Therefore, battery charging control is designed to track the MPP and maintain optimal performance of the PV system. Incremental Conductance (IC) methods. The proposed of this methods are applied to an autonomous PV system modeled in the MATLAB-Simulink program using identical sampling times at different step sizes. MATLAB-Simulink, a popular program in electrical engineering and system modeling, is used to model the system in order to confirm that it operates accurately and effectively. In this simulation, several step sizes are compared using the same sampling times. The compared of simulation results based on control performance criteria represented by settling time and steady state error. One of the most effective methods for monitoring the Maximum Power Point (MPP) in standalone PV systems is the Incremental Conductance (IC) approach. The PV system's performance can be maximized through system simulation, guaranteeing exact control over battery charging. The PV system's battery life and energy efficiency can be increased by achieving system stability and precisely tracking the MPP.
INVESTIGATION OF ELECTRICAL CONDUCTIVITY AND HYDROPHOBIC/HYDROPHILIC INTERACTION OF PAN + PMMA COMPOSITE NANOFIBERS WITH AG NANOWIRE PRODUCED BY ELECTROSPINNING METHOD
Aug 29, 2018Journal INTERNATIONAL SCIENTIFIC JOURNAL
Publisher "MACHINES. TECHNOLOGIES. MATERIALS."
Issue 8
Volume 329-332
In this study, the electrical conductivities and hydrophobic/hydrophilic properties of Polyacrylonitrile (PAN) + Polymethyl methacrylate (PMMA) composite nanofibers reinforced with nanowires were be investigated. The nanofibers are produced by the electrospin method. Their electrical conductivities and their hydrophobic/ hydrophilic properties were examined. The maximum the electrical conductivity value is 0.00298 S/cm at PAN + PMMA composite nanofibers with Ag nanowires (5 wt. %). The the biggest static contact angle occurred in PAN+PMMA composite nanofibers with 1 wt. % Ag nanowire. The static contact angles of all PAN + PMMA composite nanofibers with Ag nanowire were found to be bigger than those of PAN + PMMA composite nanofibers.