×
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

Harmonic loadflow for a system comprising of a d.c. bus suppling multiple inverters

Harmonic loadflow for a system comprising of a d.c. bus suppling multiple inverters

Harmonic loadflow for a system comprising of a d.c. bus suppling multiple inverters

(OP)
Is anyone aware of software which could run a harmonic loadflow for a system comprising of a d.c. bus supplied by one rectifier which supplies multiple inverters each of which drives an induction motor ?

RE: Harmonic loadflow for a system comprising of a d.c. bus suppling multiple inverters

That is a common configuration for paper machine drives and rolling mills. Not sure what Harminic Load Flow means. Not much one can do if draw between Groups is to be maintained.
What application is this?

Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.

RE: Harmonic loadflow for a system comprising of a d.c. bus suppling multiple inverters

The standard power system study softwares such as CYME, EDSA, ETAP etc. have the Harmonic analysis module. It is an add on module for the study software package, with additional cost.

Now coming to the below query:

Quote (harmonic load flow for a system comprising of a DC bus supplied by one rectifier which supplies multiple inverters)


It depends on how are you going to model the netwrok. Harmonics matter in AC system. So you have to model the equipment which is injecting harmonics at the final AC breaker (feeder)/ equipment. Downstream DC of this can be modeled but it is not important how many inverters are fed from the single DC bus etc. as far as Harmonic Load flow is concerned.

Hope this gives you some way forward.

RE: Harmonic loadflow for a system comprising of a d.c. bus suppling multiple inverters

Any software that can do the modelling you want for a single VFD could do it. You just model it as one rectifier sized for the total motor load, or expected maximum continuous motoring load once you add up the motoring and regenerating motors.

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