Speed Control Of Linear Induction Motor

2172 words - 9 pages

Executive Summary
VVVF drives used to control the speed of LIM, many industrial automation worldwide such as Trains drives, Automatic Screen Door, Moving Walkway, Lift and Escalator, etc., varying the speed of the drive may save energy compared with other techniques for flow control.

This mid-term report prepared for detailing how to design and build the structure of LabVIEW simulation for speed control of Linear induction motor and explaining the characteristic of V/F Speed control for Induction motor obtain the data by LabVIEW.

The design and build of simulation has two parts, part one is simulation of LED indicator for motor speed recognize and part 2 is simulation of V/F speed control of Linear induction motor. Firstly, design a control function in front panel of LabVIEW, it use for a control system interface and show the LED indicator for speed control of frequency variable. Secondly, build up a simulation module of the block panel, which function on the palette indicate the frequency calculations. After set the value of the frequency by turning the “Frequency Variable” knob, the value will be sent to the Logics used. It is a human machine interfaces design software that is user friendly.

Table of Contents
Introduction 3
Literature search 4
Methods of Achieving Sustainability 4
Evidence of the Problem 4
Advantages of Energy Saving 4
Reference Design 5
Technical work 6
I. Lab VIEW programs 6
 Design of Software 6
 Part one - Control Panel 7
 Part two – Oscilloscopes Panel 7
Block diagram 8
II. KKVF-J Inverter 9
III. PLC of Mitsubishi FX2N 9
IV. Linear Induction Motor 9
Circuit Diagram: 10
System Block diagram: 11
Results and Conclusion 12
Project Timeline 16
Estimate of Budget Cost 17
References 18
Appendices 20

http://www.mtr.com.hk/chi/investrelation/financialinfo.php

Introduction
Nowadays, the Railway as an important traffic hub wins obvious Transportation advantages in the world, the Quantity of Customer with a daily circulation of Over 2.3 million passengers, Hong Kong MTR transporting by 1 of 3 Customer every day. Thus, the relevant equipment for interior of MTR Station to dredge the passengers crowd was important. Wherein the many equipment of Industrial Automation worldwide were used the V/F Speed Control of Linear Induction Motor which the Trains themselves, Automatic Screen Door, Moving Walkway, Lift and Escalator etc. Moreover, the MTR would also produce energy in a much cleaner, more energy saving, and more sustainable manner. The neglect of this energy source is restricting the MTR from increasing its sustainability and accessibility.

Literature search
Methods of Achieving Sustainability
In this project suggests several ways to make the system more sustainable. (Variable speed appliance for energy saving included curtain pullers, trains themselves, automatic screen door, moving walkway, lift and escalator, compressors and pumps, catapults and...

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