×
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

Third harmonic appearance in six pulse thyristor controlled rectifier supplying DC motor

Third harmonic appearance in six pulse thyristor controlled rectifier supplying DC motor

Third harmonic appearance in six pulse thyristor controlled rectifier supplying DC motor

(OP)

HI

I am performing simulink simpower simulations of harmonic analysis of 5KW 440V 1000rpm dc motor fed by 6 pulse thyristor bridge.
for alpha of 75 degrees and different torque inputs the fft analysis of the ac current showing me third harmonics.
what is the reason for this ?

RE: Third harmonic appearance in six pulse thyristor controlled rectifier supplying DC motor

There's a problem with your model. Both pulsations should be identical, same period, same Vpeak.

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