in this section we will describe numerical methods to solve load flow problems.The principal information obtained from the load study is the magnitude and phase angle of the voltage at each bus and the real and reactive power flowing in each line.[1]
the solution to the power flow problem begins with identifying the known and unknown variables in the system. The known and unknown variables are dependent on the type of bus. A bus without any generators connected to it is called a Load Bus. With one exception, a bus with at least one generator connected to it is called a Generator Bus. The exception is one arbitrarily-selected bus that has a generator. This bus is referred to as the Slack Bus.[1]
ETAP Power System gives 3 different methods to solve load flow. newton-raphson, fast decoupled, and accelerated gauss siedel. numerical concepts for this three methods can be seen in [2],[3]
to select these methods, just open the edit study case
. after that you can choose the method you want in info menu.
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