×
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

how does harmonics elimination take place

how does harmonics elimination take place

how does harmonics elimination take place

(OP)
Hello, i'm electronics engineer and working on a new ac motor driver. Now i'm studying about harmonics
Can anyone tell me how does harmonic elimination take place. To tell the question more clearly i can give some examples:
The elimination of 3rd harmonic and it's multiples in three phase motors.
The elimination of even numbered harmonics in electrical machines and etc.

RE: how does harmonics elimination take place

The harmonics are a necessary evil in electrical inductive circuits and the magnitude depends on the magnetising characteristics of the material used.

RE: how does harmonics elimination take place

My understanding is that 3'd harmonics come from iron nonlinearities when a motor is driven by sine wave voltages.  Drives force sine wave currents through the motor and I believe that eliminates 3'd harmonics.

Even harmonics are caused by waveform asymetries.

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