Load Flow - How to make supply less than demand?
Load Flow - How to make supply less than demand?
(OP)
Hi everyone. I'm trying to conduct a load flow study on a power grid. I would like to simulate situations where generation does not meet load demand but this does not seem to be possible. The swing generator always supplies the extra power needed and cancels my efforts. Is there a way for me to do this? Thank you for your help and have a great afternoon!






RE: Load Flow - How to make supply less than demand?
RE: Load Flow - How to make supply less than demand?
RE: Load Flow - How to make supply less than demand?
RE: Load Flow - How to make supply less than demand?
If you don't have enough generation, the frequency will be a bigger concern than the voltage in most cases.
David Castor
www.cvoes.com
RE: Load Flow - How to make supply less than demand?
RE: Load Flow - How to make supply less than demand?
If you want a generation/load imbalance situation to occur you will have to use a time domain simulation. This is transient stability. As previously noted what you are describing as a study scenario will cause frequency to decrease. In fact, if you have no governor action modeled or frequency dependent load model the frequency will decrease all the way to zero! That is what happens when load is greater than generation.
Of course in a real power system that will NOT happen since governors act, AGC acts, people act, load IS frequency dependent, there ARE UFLS relays, etc, etc, etc...