How to access PSSE working case variables by Python a code

Question

I am a transmission planning engineer and trying to automate the execution of PSSE 100 times or more at one go through a Python code. I already runs, change loads, reruns psse and write bus based summary report to *.csv file. What I really want to do is select the first active power load variable of a PSSE case and increase it by 1 MW. Then run psse, write results to a csv file. Change the selected load back to its original value and move on to the next active load to do the same again and again until I have done same for all load busses.

This will help me to calculate transmission loss factors for entire network with one go.

Thanks

Answer 1

@dsmtlk, if you're experienced in Python, you can readily find the information you need in the PSSE API Manual located in your PSSE program folder (mine is in C:\Program Files (x86)\PTI\PSSE33\DOCS). The API routines for getting bus data are in section 8.6. The routine for changing bus data—viz., psspy.load_data_4()—is in section 2.21.

If you're new to Python, here are a couple links I found helpful when I first started:

https://docs.python.org/2/tutorial/

http://www.tutorialspoint.com/python/