Convergence of iterative load-flow studies

A THEORY has been developed for explaining the convergence of iteration methods used in the solution of power flow problems in large electric networks. This theory will predict the improvement to be expected when using certain acceleration techniques, thus giving a means for determining the fastest convergence for a given problem. The new understanding that this theory gives of the mechanism of convergence of problems of this type should lead to new and better methods of solving power system problems on a digital computer.