International Journal of Research for Applied Electrical Engineering

Authors: Akshay Prakashrao Pundkar, A. A. Ghute

Abstract: This review proposed a system in which the maximum energy is harvested from the photovoltaic (PV) panel to charge the particular connected batteries. In hilly region it is not economical to establish the distribution network in such condition the stand alone photovoltaic system is one of the good option. The output energy obtained from the PV Panel is tracked with the help MPPT technique. For this Maximum Power Point Tracking (MPPT), the Perturb and Observe method (P&O) is used to control converters circuit. Also, a ThreeStage Charging (TSC) method is used to quick and safely charging of the battery. The certain work proposed power management technique between the maximum power point tracking and the power charging processes. Also the power management of MPPT method and maximum charging of the battery should be attempted together.

Authors: Prof. Vishal D. Jaiswal, Ms. Ashwini R. Golghate

Abstract: This paper describes study of Floating Point 32-Bit MIPS RISC Processor Using VHDL (Very High Speed Integrated Circuit Hardware Description Language). In this IEEE 754 Single Precision Format is use for the floating point concept. This processor has fixed-length of 32-Bit instructions based on four different format R-format, I-format, J-format and I/O format and eight 32-Bit general-purpose registers. The instruction format used in this is based on RISC (Reduced Instruction Set Computer) Processor but the design process is simple which involves instruction fetch (IF), instruction decoder (ID), execution (EXE), data memory (MEM) and write back (WB) modules of 32-Bit CPU. The control unit controls the operations performed in these module. All the modules in this design are coded in VHDL language, as it is very useful in digital hardware. A more than 45 instructions are designed in initial development step of the processor. The instruction set consists of Arithmetic, Logical, Immediate, Jump, Load, store, I/O and HALT type of instruction. Finally, Simulation of the design is done in XILINX 14.5i ISE Simulator.

Authors: Dr. A. Sheela, M. Abinayasree, S. Abinesh, T. Dineshkumar

Abstract: The purpose of home automation system using wireless sensor networks are to monitor, control the home appliances based on parameters like illumination, temperature. The home automation system is intended to control all lights and fans in a domestic buildings using data from sensors. The main objective is to reduce the unnecessary energy consumption of a domestic buildings. It is meant to save the electric power and human energy by providing the user with remote control of various lights, fans, and appliances within their home. The system will automatically change on the basis of sensors’ data. This system is designed to be low cost and expandable allowing a variety of devices to be controlled. The proposed system consists of two main components; the first part is the transmitter module which includes sensor nodes to sense temperature and illumination, arduino board for data collection and control and a zig bee transmitter for transferring collected data. Second part is receiver module, which provides appropriate interface to sensors and actuator of home automation system including the appliances to be controlled based on data received. The proposed system is better from the scalability and flexibility point of view than the commercially available home automation systems. A wireless network approach to this communication and control provides an easy, cost-effective and scalable solution to home automation. The home automation systems provide mutual interoperability between various electronic and electrical devices as well as interactive interface for people to control their operation. These features are very helpful to optimize and to economize energy consumption whereby saved energy during some few years could make more money than home automation systems implementation cost. These technologies make peoples’ life also easier, especially for elderly persons and persons with disabilities.