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That's a good question, I haven't seen or used those API calls before and have not had issues... My initial hunch tells me that `psspy.powerflowmode() is necessary if you are affecting the network in a way that changes the admittance matrix values, which may include changing a converted load's power. I will investigate that when I have time and update my answer.

You can use this command to disconnect the bus instead, and confidently not use those comands: ierr = psspy.dist_bus_trip(ibus)

That's a good question, I haven't seen or used those API calls before and have not had issues... My initial hunch tells me that `psspy.powerflowmode() psspy.powerflowmode() is necessary if you are affecting the network in a way that changes the admittance matrix values, which may include changing a converted load's power. I will investigate that when I have time and update my answer.

You can use this command to disconnect the bus instead, and confidently not use those comands: ierr = psspy.dist_bus_trip(ibus)

That's a good question, I haven't seen or used those API calls before and have not had issues... My initial hunch tells me that psspy.powerflowmode() is necessary if you are affecting the network in a way that changes the admittance matrix values, which may include for example, changing a converted load's power. I will investigate that when I have time and update my answer.

You can use this command to disconnect the bus instead, and confidently not use those comands: ierr = psspy.dist_bus_trip(ibus)