07-12-2012, 04:59 PM
POWER GRID CONTROL USING MATLAB
POWER GRID.pptx (Size: 78.25 KB / Downloads: 41)
INTRODUCTION
Data acquisition is the process by which events in the real world are sampled and translated into machine-readable signals. Data acquisition typically involves sensors, transmitters and other instruments to collect signals, waveforms etc. to be processed and various functions can be performed and analyzed in practical world . The components of data acquisition systems include appropriate sensors that convert any measurement parameter to an electrical signal, which is acquired by data acquisition hardware.
Acquired data typically is displayed, analyzed, and stored on a PC or on other hand we reverse the complete process and command will be given through PC with use of any software and finally we get output on hardware. In our project data that can be obtained on hardware will be further processed and we can control home appliance with this complete system.This includes many data acquisition devices such as plug-in boards or serial communication systems which use a computer as a real time data recording system.
WORKING PRINCIPLE
Signal Inputs
Each input has a protection resistor, a resistor to ground and an amplifier. The protection resistor ensures that overvoltages do not destroy the system also buffer IC can be use for same purpose. In case that to all channels an overvoltage is applied,. The pull down resistor guaranties always a defined input. The amplifiers reduces the impedance for the inputs of the MCU. Their output resistor prevents high currents flowing into the MCU when the amplifier drive their output above 5 volts or below ground.
Power Supply
The power supply generates three different voltages: +9 volts and 5 volts. If rail-to-rail OP were used, the generation of 5 volts only would have been sufficient. Also the output resistors of the amplifiers could then be omitted. Single-supply OP can be used with 9 volts and 5 volts for the digital parts.
PIK Circuit:
Circuit designing of MCC kit contains a parallel port connected with the parallel port of our computer and data are transferred through this DB25 port. Through this data can be transferred directly to led as for +5v we get on status of LED and for off status LED will not glow and we get 0V. so for different functions we can get different types of output and with every different output we perform different functions and so we can control various appliances or anything that we want. We can use relay for working with AC devices. This is how we control AC devices.
MATLAB
MATLAB is a high-level technical computing language and interactive environment for algorithm development, data visualization, data analysis, and numeric computation. Using MATLAB, you can solve technical computing problems faster than with traditional programming languages, such as C, C++, and Fortran.
Key Features
High-level language for technical computing
Development environment for managing code, files, and data
Interactive tools for iterative exploration, design, and problem solving
Mathematical functions for linear algebra, statistics, Fourier analysis, filtering, optimization, and numerical integration
2-D and 3-D graphics functions for visualizing data
Tools for building custom graphical user interfaces
Functions for integrating MATLAB based algorithms with external applications and languages, such as C, C++, Fortran, Java, COM, and Microsoft Excel
PCB WIZARD
PCB wizard software is used to design our circuitry on pcb so that it can be printed and apart from breadboard we have very less probability of errors. So complete designing is done in software and then implemented on pcb and then drilling and soldering process takes place. cover areas such as the size and shape of your PCB layout, which components are used as well as more advanced features such as automatic routing and component placement. For many circuits you can leave the settings in the window unchanged. With your transistor sensing circuit, just one option will be changed.
APPLICATION
Several Application are been developed in industrial side from this concept. Like complete system is automated and being handled by just monitoring and sending commands through computer graphics so that easy to handle and also work is done in very short time limit without any hard manual work.