Transcript Slide 1

Advanced course of Electrical Drives – Course Project
Lesson 1. About the Project
My guide and your feedbacks: http://www.facebook.com/pages/MasteringDrives/138468779625797
Manual http://edrive.narod.ru/edCour13.pdf
Getting started eDrive http://edrive.narod.ru/eDrive_v0912.pdf
eDrive toolkit http://edrive.narod.ru/ed_e.zip
Advanced course of Electrical Drives – Course Project
Timetable
Monday
10-11:30
12-13:30
Consultations, NRG-223, EVEN
Exercise AAAM22, NRG-223
AAV0090 Project in Electrical Drives
14-15:30
Lecture AAAM22, NRG-422
AAV0040 Advanced Course of Electrical Drives
Wednesday
12-13:30
Practice AAAM22, NRG-102, EVEN
AAV0040 Advanced Course of Electrical Drives
Advanced course of Electrical Drives – Course Project
Lesson 1. About the Project
Part 1- Power system engineering
•
•
•
•
Request for proposal with the individual input data
Timing calculation and the mechanism travel diagram
Mechanism forces calculation and torque/power patterns
Optimum motor-gear set selection and examination
Part 2 - Drive control engineering
•
•
•
Controller development and tuning
Data and transient simulation of open-ended and close loop systems;
Conclusion of the project summary
3
Advanced course of Electrical Drives – Course Project
Lesson 1. About the Project
The final report should include the following:
• request for proposal with the individual input data;
• timing calculation and the travel diagram of the mechanism;
• calculation of the mechanism forces and torque/power patterns;
• gear dimensioning and selection;
• motor dimensioning and selection;
• optimum motor-gear set selection and examination;
• power electronic converter dimensioning and selection or design
• data and simulation results with transients of open-ended system;
• block diagram of the control system
• controller development and tuning
• data and simulation results with transients of the close loop system
• motor drive wiring diagram;
• conclusion concerning the summary of the project.
4
Advanced course of Electrical Drives – Course Project
Lesson 2. Request for Proposal
1.
2.
3.
4.
5.
6.
7.
Type of application
Speed range, minimum, and maximum values
Accuracy and time response
Efficiency and power factor
Service life expectancy
Supply conditions and harmonics
Supply voltage, current, and frequency
Working voltage: low (below 690 V) or medium
Current type: ac or dc
5
Advanced course of Electrical Drives – Course Project
Lesson 2. Request for proposal
Classification by applications
Feature
Appliances
General-purpose drives
System drives
Servo drives
Applications
Home
appliances,
Fans, pumps,
compressors, mixers
Test benches,
cranes, elevators,
hoists
Robots, lathes,
machine tools
Performance
Middle
Low
High
Very high
Power rating
Low
Motor
Whole range
Mainly induction motors
Low and middle
Mainly servomotors
Converter
Simple, low
cost
Open-loop ac and dc
Expensive, high quality
Typical
feature
Home, mass
production
Process, cost sensitive,
low performance
High accuracy and high dynamic,
high precision and linearity
6
Advanced course of Electrical Drives – Course Project
Lesson 2. Request for proposal
Comparative properties of motor drives
Induction electrical drives
Property
Speed range
Open-ended
scalar
control
(VFC)
Close loop
Field-oriented
scalar
vector control
controls
(FOC)
(FFC, CFC)
Direct
torque
control
(DTC)
Synchronous
servo drive
40
100
1000
40000
Speed
stability
90 %
98 %
99.5 %
99.9 %
Run-up time
20 ms
5 ms
Run-up
torque, % of
rated torque
100 %
200 %
Comparative
cost
100 %
200 %
300 %
Application
areas
Pumps, fans
Conveyers
Hoists, lifts, machine-tools, devices, robots
2 ms
300 %
500 %
7
Advanced course of Electrical Drives – Course Project
Electrical requirements
Usup
Line chokes Input filter
or transformer
Uload
Overvoltage
protection
Power electronic
converter
M
Output filter
8
Advanced course of Electrical Drives – Course Project
Lesson 2. Request for proposal
Others
1.
2.
3.
4.
5.
6.
Mechanical coupling: direct, via a gearbox, or indirect
Packaging: integrated motors as opposed to separate ones
Movement: rotary, vertical, or linear motion
Drive configuration: stand-alone, system, dc link bus, etc.
Braking mode: regenerative or non-regenerative
Cooling method: direct and indirect air, liquid, etc.
7. Performance conditions and duty
8. Power and torque ratings
9. Standards, rules, and regulations
9
Advanced course of Electrical Drives – Course Project
Lesson 2. Request for proposal
Equipment enclosure (housing) depends on:
• maintenance conditions and functional place of equipment,
such as autonomous, built-in, or a part of another device
• mechanical resistance to shocks, vibrations, etc.
• methods of control, repair, and reconstruction
• protection from aggressive environment
• storage conditions
10
Advanced course of Electrical Drives – Course Project
Lesson 2. Request for proposal
Ingress protection coding (IP)
IP
X – protection against accidental
contact
Y – protection against penetration of water
0
No protection
No protection
1
Large surface and solid objects
exceeded 50 mm in diameter
Dripping water (vertical falling drops)
2
Fingers and solid objects exceeded
12 mm in diameter
Water drops falling up to 15˚ from the
vertical
3
Tools and solid objects exceeded 1 mm
in diameter
Spray water up to 60˚ from the vertical (rain)
5
Any object and harmful dust deposits,
which can interfere with operation
Jet water from all directions
6
Any contact and any kind of dust
Temporary flooding (deck of a ship)
4
Deck water (splash water from all directions)
7
Effects of brief immersion
8
Pressurized water
11
Advanced course of Electrical Drives – Course Project
Lesson 3.
Development of the design
algorithm.
Timing calculation and travel
diagram
12
Advanced course of Electrical Drives – Course Project
Lesson 4. Mechanical force calculation
1. Find the load angular speed ω’
2. Find the maximum static counter-torque M’
3. Find moment of inertia J’
13
Advanced course of Electrical Drives – Course Project
Lesson 5.
Motor-gear-converter kit
packaging and examination
(Getting started eDrive)
1. Build the static torque-speed
diagram
2. Build the dynamic torque-speed
and current-speed diagram
3. Examination calculation
14
Advanced course of Electrical Drives – Course Project
Lesson 6.
Composing wiring
diagram and drive
specification
15
Advanced course of Electrical Drives – Course Project
Lesson 7. Controller development and tuning
1. Development of the block
diagram
2. Auto tuning and fine-tuning
3. Simulation of the close-loop
system (Getting started eDrive)
16
Advanced course of Electrical Drives – Course Project
Lesson 8. Project defense
Report, presentation, questioning
Graded credit
17
Advanced course of Electrical Drives – Course Project
Project Schedule
ACED_
Crs1
02.02
Introduction (About the project. Project contents. Report contents. Project defend.)
ACED_
Crs2
09.02
Request for Proposal (Drive specifications. Classification by applications. Thermal
considerations. Electrical requirements. Constructional requirements.
Accidental protection. Electromagnetic compatibility.)
ACED_
Crs3
16.02
Development of the design algorithm. Timing calculation and travel diagram.
ACED_
Crs4
02.03
Mechanical force calculation (computing the load angular speed. Finding the
maximum static counter-torque. Finding moment of inertia.)
ACED_
Crs6
09.03
16.03
Motor-gear-converter kit packaging and examination (Getting started eDrive.
Equipment selection. Building the static torque-speed diagram. Building the dynamic torque-speed and
current-speed diagram. Examination calculation.)
ACED_
Crs7
23.03
Composing of wiring diagram and drive specification.
ACED_
Crs9
30.03
06.04
Controller development and tuning (Development of the block diagram. System calculation
Auto tuning and fine-tuning. Simulation of the close-loop system.)
ACED_
Crs11
13.04
20.04
Report, presentation, questioning.
ACED_
Crs12
27.04
Assessment
18