If checked, the enforcement of the generation re-dispatch to account for MW interchange constraints for all areas is disabled. MW Control (Outer) Loop Options (see Solving the Power Flow for information on solution loops)ĭisable Automatic Generation Control (AGC) This is useful to more closely examine a case with which you are experiencing difficulty. If checked, Simulator will only perform one iteration of the load flow solution process when Solve Power Flow is clicked, regardless of the Maximum Number of Iterations setting. If Simulator is configured to represent non-converging power flow cases as blackouts, the screen will turn gray and the blackout warning message will appear. If Simulator must exceed this number of iterations, it assumes that the power flow case is not converging and will terminate the solution process. This option defines the maximum number of iterations Simulator will perform during the Power Flow Solution process in an effort to converge to a solution. If you are having difficulty solving a particular case, it may be helpful to temporarily increase the MVA Convergence Tolerance to drive the solution closer to the actual solution, and then re-solve from this solution using the smaller MVA tolerance. Usually, this value should be around 0.1 MVA. The MVA mismatch is computed as the maximum real or reactive mismatch at any bus in the system. The MVA convergence tolerance serves as a measure for determining when the inner power flow loop of the Power Flow Solution process has reached an acceptable solution.
Power Flow (Inner) Loop Options (see Solving the Power Flow for information on solution loops)
The following options are all contained on the Common Options tab after choosing the Power Flow Solution page of the Simulator Options.
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