This paper deals with the mathematical way of modeling solar panels involving mathematical equations for the calculation of solar panel current. Along with the conventional inputs series and shunt resistances are taken as additional inputs. Maximum Power Point Tracking (MPPT) algorithms implementing Perturb and Observe (P&O) and fuzzy logic techniques having the same voltage and current variables as inputs are implemented and their efficiencies are checked. A standard configuration of the boost converter employing a MOSFET device as a switch is implemented to obtain a constant DC output voltage. The MPPT algorithms identify the duty cycle at which the gating pulses have to be given to the switching device so that triggering occurs at the maximum power point thereby delivering maximum power to the load. Simulation results are obtained in MATLAB Simulink environment based on the mathematical and electrical models developed.Keywords Boost converter Á Fuzzy logic Á MPPT Á Perturb and observe Á Solar PV array IntroductionSolar energy production is one of the fastest growing renewable energy productions as the energy utilized is the light energy which comes from the sun which is inexhaustible. There are specific types of materials which generate current upon absorbing light. Those materials are called as photovoltaic materials. This voltage can be effectively utilized by series and parallel combination of cells [1]. The energy produced by the solar panels cannot be delivered efficiently to the load. Maximum power point controllers are modeled to extract the maximum power from

No abstract

Conventional methods of using Barcodes that requires line of sight, pricing discrepancies, scanning problems, label damage, financial and equipment cost causes inaccuracy in entering the information and barcode scanners eventually breakdown causing scanning problems. Therefore, Radio Frequency Identification (RFID) technology is proposed that uses radio waves to transfer from an electronic tag called RFID tag, attached to an object, through a reader for the purpose of identifying and tracking the object. RFID technology which is a matured technology that has been widely deployed by various organization as a part of their automation system. In this study, an RFID based system has built in order to produce a compact and reliable smart security system using RFID and face verification is presented here. The RFID system identifies the student using the RFID card and further identity verification of the student is carried out using face recognition technique. RFID uniquely identifies the student based on the card number, then Viola-Jones algorithm is used to verify face of the students using face image of the student. The performance of the system is carried out with RFID code and face recognition.