12:41 AM
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Shahrul
Occur when there have disturbance.
- When disturbance is applied, machine behaviour can be quite difference.
- A transient Period of readjustment occur between the initial and final steady state operating condition.
DC Motor dynamic
- used in applications where precise control of speed and torque is required over a wide range.
- the methode used is seperately excited DC Motor with constant field excitation.
For speed controlled, it can be used by changging the voltage applied to the motor terminal.
- Investigate how the speed of motor responds to the changes in terminal voltage.
- involves electrical transients in the armature circuit and mechanical transient in mechanical system driven by the motor.
schematic diagram for seperately excited DC motor.
Electric machines play an important role in industry as well as our day to day life. They are used to generate electrical power in power plants and provide mechanical work in industries. They are also an indispensable part of our daily lives. Electric machines are very important pieces of equipment in our everyday lives. The DC machine is considered to be basic electric machines.
The aim of this final year project is to introduce students to the modeling of power components and to use computer simulation as a tool for conducting transient and control studies. Simulation can be very helpful in gaining insights to the dynamic behavior and interactions that are often not readily apparent from reading theory. Simulation is often chosen by engineers to study transient and control performance or to test conceptual designs.
MATLAB/SIMULINK is used because of the short learning curve that most students require to start using it, its wide distribution, and its general purpose of nature. This will demonstrate the advantages of using MATLAB for analyzing power system steady-state behavior and its capabilities for simulating transients in power systems and power electronics, including control system dynamic behavior
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