First time here? We are a friendly community of Power Systems Engineers. Check out the FAQ!
How to describe a load with time-varying active power by Python in PSS/E simulation? I want to make a test,that I want some of the load,may be one of the load that its active power is time varying in the dynamic simulation,How can I do ,Could you tell me how to write the Python script for this PSS/E simulation? Thanks a lot!
Depends on the characteristic of the time-varying load, there could be two ways to implement in dynamics simulation. If it is a very simple piece-wise loads (active power vs time), then just altr the load at specific time. If the load is a complex function of time, then the best way is to write a user defined model for the load.
Mr yfwing what do u mean in "complex function of time"?
in my case i need to vary the demand load through the day depending on consumption>> is this considered as your description "complex load" ?
Mr. @yfwing
"to vary the load demand through the day" would not be suitable for dynamic simulation (10 to 30 sec time-domain simulation). It seems yours is a steady-state process with load values being updated every so often for a day. BTW Some wind models allows simulations of gust-wind periods.
Asked: Sep 17 '13
Seen: 6,384 times
Last updated: Apr 09 '14
whit loves you. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
How exactly is your load varying with time?
I want to decribe wind machine as a time-varying load,is that OK?
Dynamic studies are normally on the order of 10-30 seconds long. Do people normally alter system conditions like that during the simulation?
Yes, one example is load shedding.