Current asymmetry

[AntonioPerez]

I've been asked for some grid quality requirements in a project. One of those parameters is current asymmetry. I'm trying to find any regulation or standard about it but I can't find. Does anyone know?

Thanks in advance.

 

[Gr8blu]

Current and voltage asymmetry are related. Since we don't know which part of the world you're operating in, try searching your local electrical code for "voltage unbalance" and "grid ride through".

For a wind-specific discussion, see the following link. If you extrapolate a bit, it is applicable to pretty much all rotating machines connected to a distribution grid.

https://www.scadaminer.com/current-asymmetry-wind-farms-causes-effects/

Converting energy to motion for more than half a century

 

[JJ_Roy]

Have a look at IEC TR 61000-3-13:2008 - "Electromagnetic compatibility (EMC) - Part 3-13: Limits - Assessment of emission limits for the connection of unbalanced installations to MV, HV and EHV power systems"

 

[waross]

Investigate (start with Google) harmonics and distortion power factor.

--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[bacon4life]

It might be referring to the presence a DC offset. IEEE 519 prohibits use of any device that causes a DC offset.