1 / 15

Electric Motors and Motion Control

Electric Motors and Motion Control. Ara Knaian. Motors. Motors convert electrical energy to mechanical energy Motors make things move. LINEAR. DC BRUSH. INDUCTION. ELECTROSTATIC. STEPPER. UNIVERSAL. How a DC Motor Works. Brushes. How a DC Motor Works. Motor Modeling.

stacy
Download Presentation

Electric Motors and Motion Control

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Electric Motors and Motion Control Ara Knaian

  2. Motors • Motors convert electrical energy to mechanical energy • Motors make things move LINEAR DC BRUSH INDUCTION ELECTROSTATIC STEPPER UNIVERSAL

  3. How a DC Motor Works Brushes

  4. How a DC Motor Works

  5. Motor Modeling • Is this motor big enough? • Will this thing move? • What gear ratio should I use? • How big should my power supply be? • How hot will it get? • How fast can I machine? • What materials can I machine?

  6. Motor Modeling Voltage and Current In Torque and Speed Out Heat Out Power In = Power Out

  7. Motor Modeling

  8. Motor Modeling Torque is proportional to current In an ideal motor (R = 0), speed is proportional to voltage At constant voltage, speed goes down as torque goes up

  9. Pittman Motor Data Sheet

  10. Pittman Motor Data Sheet

  11. Bidirectional Motor Drive: H-Bridge

  12. Speed Control: PWM Like Low Voltage (slow) Like High Voltage (fast)

  13. Rotary Shaft Encoder

  14. Motor Control: Linear Servo Loop Mechanical System Controller Motor Encoder Set Point (desired position, velocity) Measured Output (position/velocity) e.g. PID

  15. Practical Motor Controller Block Diagram Mechanical System H Bridge Motor Encoder Limit Switch Microcontroller

More Related