Training Industrila Vsd Variable Speed Drive

Training How Ac Variable Speed Drives Vsd’S Work

Training Operation And Troubleshooting Of Variable Speed Drives

Deskripsi

Pumps, fans, blowers and compressors consume as much as 65% of this total. A large proportion of these applications are powered by fixed or constant speed drivers whose load demands often fluctuate. This poor match of speed and demand results in considerable wasted energy and significantly increased wear of system components. Variable speed drive technology is a cost effective method to match driver speed to load demands and is an excellent opportunity to reduce operating costs and improve overall efficiencies in your application.

This course gives you a fundamental understanding of the installation, operation and troubleshooting of variable speed drives. You will learn the basic setup of parameters, control wiring and safety precautions in installing a VSD. The various drive features such as operating modes, braking types, automatic restart and many others will be discussed in detail. You will learn the four basic requirements for a VSD to function properly with emphasis on typical controller faults, their causes and how they can be repaired.

The concluding section of the course gives you the fundamental tools in troubleshooting VSD confidently and effectively. Even though the focus of the course is on the direct application of this technology, you will also gain a thorough understanding of the problems that can be introduced by VSD such as harmonics, electrostatic discharge and EMC/ EMI problems.

Tujuan

At the end of this workshop participants will be able to:

Demonstrate a sound understanding of how AC Variable Speed Drives (VSD’s) work
Install VSDs properly
Select the right VSD for a given application
Troubleshoot VSDs competently
Competently explain how flux-vector control works for drive applications understand squirrel cage induction motors
Identify the protection and control system requirements for VSD’s
Interface VSD’s with PLCs
Understand the causes of motor burnout
Deal effectively with VSD harmonics and
EMC/ EMI problems

Materi

1. Introduction To Variable Speed Drives

The Need for Variable Speed Drives
Fundamental Principles of Speed Control
Efficiency, Torque, Inertia,
Horsepower/ Power Factor
Torque-Speed Curves
How the motor produces Torque
Types of Variable Speed Drives
2. 3-Phase Ac Induction Motors

Basic Construction and Physical Configuration
Principles of Operation and Performance
Equivalent Circuit and Fundamental Equations
Starting, Acceleration, Running and Stopping
Power, Torque and Thermal Rating
3. Power Electronic Converters

Definitions and Basic Principles
Power Diodes and Thyristors
Principles of Communication
Power Electronic Rectifiers
Power Electronic Inverters
Gate Commutated Converters
Gate Controlled Devices – GTO, FCT, GTR, FET, IGBT
4. Electromagnetic Compatibility (EMC)

Sources of Electromagnetic Interference
Harmonics on the Power Supply side of AC Converters
The Effect of Harmonic Distortion on other connected Equipment
Methods of reducing the effect of Supply side Harmonics
Electric Motor Protection
Thermal Overload Protection – Current Sensing
Thermal Overload Protection – Direct Temperature Sensing
5. Protection Of Motors And Converters

AC Frequency Converter Protection Fault Diagnostics
Electric Motor Protection
Thermal Overload Protection – Current Sensors
Thermal Overload Protection – Direct Temperature
6. Control System For Ac Variable Speed Drives

The Overall Control System
Power Supply to the Control System
DC Bus Charging System
VSD Control Loops (Open-Loop, Closed- Loop)
Vector control and its applications Current Feedback in AC Variable Speed Drives\
Speed Feedback from the Motor
7. The Selection Of Ac Converters For Variable Speed Drive Applications

The Basic Selection Procedure
Loadability of Converter Fed induction Motors
Operation in the Constant Power Region
The Nature of the Machine Load
Starting and Stopping VSDs (Motor Braking)
8. The Selection Of Ac Converters (Continued)

How to Calculate Acceleration Torques and Times
How to Select the correct Motor and
Converter for Pump and Fan Loads
How to Select the correct Motor and
Converter for Constant Torque Loads, such as conveyors
Summary of the Selection Procedure
9. Installation And Fault Finding Techniques

General Installation and Environmental Requirements
Power Supply Connections and Earthing
Where to install the Contactors in the Power Where to install the Contactors in the Power Circuit
Installing AC Converters into Metal Enclosures

Peserta

Training ini diperuntukkan bagi:

Staff, Supervisor, Manager ataupun level di atasnya dari Divisi SDM ataupun divisi lainnya yang membutuhkan training ini;
Praktisi atau Profesional yang ingin menambah pengetahuan mengenai Industrial VSD for Factory Automation

Instruktur

Miftahul Huda, MT dan Team