×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Active Power Factor Correction

Active Power Factor Correction

Active Power Factor Correction

(OP)
How to correct the power factor of a 3 phase AC Induction motor without using Capacitors?Control Algorithm or the design flow??
I just want to implement active power factor correction?

RE: Active Power Factor Correction

Capacitors or power electronics are your two possibilities.   

RE: Active Power Factor Correction

Also when designing an asynchronous motor there are some options to modify power factor. But the best you may achieve by this is maybe 0.9 and it is always a tradeoff against other parameters.

Furthermore at least in the low and medium power area nearly all motors are a standard design where also these features are governed by IEC or NEMA specs.

To recive more detailed answers it would be nice if you can specify your question more in detail:

power, application, reason for beeing so keen on power factor

RE: Active Power Factor Correction

Since you mention controller... are you looking to improve power factor on the input of the drive or on the output.

The fact that you mention flow baffles me.  How could you hope to adjust power factor by changing flow?

Perhaps you can give a broader picture of what you are trying to achieve.
 

=====================================
Eng-tips forums: The best place on the web for engineering discussions.

RE: Active Power Factor Correction

Why do you want or think you must have active power factor correction?

The only way is either with an active power factor correction box or with an active front end VFD. I hope you have a large motor because either is expensive.

 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources