ac motor control

  1. D

    Do you know where I can buy a small PMSM for a motor control project?

    Hello, I am trying to make a motor control project, more in particular I would like to test different motor control strategies, more particurlarly,, FOC, but with various types of sensors, including sensorless control. I have been searching a bit the Internet looking for it, but I seem to find...
  2. Calculating the value of the resistance for controlling the speed of AC fan

    i have a single phase ac fan that i would like to control its speed i am a bit new in this field so please bear with me i had the idea of fixing 3 speeds with 3 switches one for each speed: (25% 50% 90%), and 3 relays each switch activates a relay and each relay wired in series with a...
  3. M

    Agile actuator challenge

    Dear all, I have faced a challenging problem that may be interesting for those who are in agile/precise control. Realizing an actuation system for the following application, I appreciate any help/feedback: A 0.5 kg load needs to be moved up and down between positions A and B. The (vertical)...
  4. R

    Derating a switch's load rating with inductive load

    I am selecting a switch to energize a 3/4 hp AC motor. I am concerned about the prospect of contact arcing with such an inductive load. If a switch is rated at 25A @ 125 VAC, it will handle the continuous current, but might there be a reliability issue over time due to contact arcing at turn on?
Cookies are required to use this site. You must accept them to continue using the site. Learn more…