MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor...
-
Upload
abel-hodges -
Category
Documents
-
view
223 -
download
1
Transcript of MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor...
![Page 1: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/1.jpg)
LT ThomasTJ Volinski
Pat O’HaraKole Reece
MSP430 Motor Controller Applications
![Page 2: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/2.jpg)
Design Team 6 2
Outline
• H-Bridge• Types of Motors Polarity• Stepper Motor• Brushed Motor• Brushless Motor• Permanent Magnet Motor• AC Induction Motor
4/1/2011
![Page 3: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/3.jpg)
Design Team 6 3
Speed Controller
• Definition Closed Loop Vs Open Loop• How do we Implement motor control• Protection • Switching Mechanism– Bipolar Operation – Unipolar Operation
• Pulse Generator
2/16/2011
![Page 4: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/4.jpg)
Design Team 6 4
System Diagram
2/16/2011
![Page 5: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/5.jpg)
Design Team 6 5
Unipolar
2/16/2011
![Page 6: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/6.jpg)
Design Team 6 6
Bipolar
2/16/2011
![Page 7: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/7.jpg)
Design Team 6 7
Schematic Implementation
2/16/2011
![Page 8: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/8.jpg)
Design Team 6 8
Types Of Polarity
• Axial & Radial Flux
4/1/2011
![Page 9: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/9.jpg)
Design Team 6 9
Stepper Motors
• Introduced in the 1960’s• Replace Servos
• Advantages– Long Life– Excellent Low Speed– High Speed Protection
• Disadvantages– High Power– Big Size for Lower Power
4/1/2011
Robotgear.com
N
![Page 10: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/10.jpg)
Design Team 6 10
Torque Control
4/1/2011
![Page 11: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/11.jpg)
Design Team 6 114/1/2011
![Page 12: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/12.jpg)
Design Team 6 12
Motor Controller
• DRV88xx• Steps
• 8 to 45 Volts, 2.5 A
4/1/2011
Full1/2
1/41/8
1/161/32
![Page 13: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/13.jpg)
Design Team 6 13
MSP430 Applications
4/1/2011
![Page 14: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/14.jpg)
Design Team 6 14
Brushed DC Motor
4/1/2011
• Stator has permanent magnets• Rotor has coil, creates EMF• Half rotation is sensed with,
commutator. • Actually AC motor.
![Page 15: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/15.jpg)
Design Team 6 15
Brushed DC Motor
4/1/2011
• 2 Brushes stillshort out
• Still have 4 loopsof conducting
![Page 16: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/16.jpg)
Design Team 6 16
Brushless DC Motor
4/1/2011
• Coils on the Stator• Permanent Magnet on Rotor• Motor topology is
nondetermistic
![Page 17: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/17.jpg)
Design Team 6 17
Brushless DC Motor
4/1/2011
• Add more phases to stator• Run current through different phases.
![Page 18: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/18.jpg)
Design Team 6 18
Brushless DC Motor
4/1/2011
• Hall effect sensors detect transitions from North to South poles.
• 3 sensors provide binarydata. Never get 000or 111 therefore use aserror codes.
![Page 19: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/19.jpg)
Design Team 6 19
Permanent Magnet Motor
• AC Motor• Sinusoidal Windings on Stator• 3-Phase: each winding coexists together
4/1/2011
![Page 20: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/20.jpg)
Design Team 6 20
Permanent Magnet Motor
• Field Oriented Control– Calculate the rotor flux– Calculate current of A,B,C windings to make current vector 90 degrees
of rotor flux.– Magnitude of current vector can be adjusted for different speeds
• Used in applications where a small motor is needed• Uses less power than other motors
4/1/2011
![Page 21: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/21.jpg)
Design Team 6 21
AC Induction Motor
• Rotor and Stator both have windings• Asynchronous Motor
– Magnetic field must rotate faster than rotor – Motor can slow down or slip
• Field Oriented Control or V/Hz– 16-bit microcontroller used for V/Hz– 32-bit microcontroller used for FOC
• Most popular motor in consumer and industrial applications
4/1/2011
![Page 22: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/22.jpg)
Design Team 6 22
MSP430 Brush and Brushless
4/1/2011
• MSP430 connected to a DRV8801 motorcontroller.
![Page 23: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/23.jpg)
Design Team 6 23
Summary
• Low Speed with High accuracy– Stepper motor
• Long life– AC Induction, Stepper motor, & Brushless
• High Torque– AC Induction
• No Feedback– Stepper & Brushed
• Less Power– Permanent magnet
4/1/2011
![Page 24: MSP430 Motor Controller Applications. Outline H-Bridge Types of Motors Polarity Stepper Motor Brushed Motor Brushless Motor Permanent Magnet Motor AC.](https://reader038.fdocuments.us/reader038/viewer/2022102800/56649cf45503460f949c1b17/html5/thumbnails/24.jpg)
Design Team 6 24
QUESTIONS
4/1/2011