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Greetings,
I'm modeling a simple power system: generator, transformer and load. The problem comes up after I enter the transformer's (Yd5) vector group. When doing this, at the time I run the load flow, there is the following response: "Blown up after 1 iteration". On the other hand, when I omit the vector group, the load flow's result is as expected. Has anyone had the same inconvenience?
Vector group Yd5 means 150 degrees phase shift between the two windings. This angle difference it too large as starting point for Newton-Raphson. Solve first with Gauss-Seidel and then continue with Newton!
Asked: Jul 4 '17
Seen: 1,269 times
Last updated: Jul 05 '17
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