.ScalableTestSuite.Electrical.BreakerCircuits.Models.BreakerNetworkDelayed .ScalableTestSuite.Electrical.BreakerCircuits.Models.BreakerNetworkDelayedThe goal of this model is to test the ability of a Modelica tool to handle a large number of closey spaced events, generated by variables which are solved in a large, sparse linear algebraic loop. As such, it mimicks some of the features of power system models with delayed circuit breakers and tap changers.
The current generator feeds a growing current into a network which is made by N+1 equal conductive loads, N of which are protected by breakers. The current thus spreads equally through each load whose breaker is closed.
The last breaker is triggered when the current goes above 1 A. The breaker opens after 1ms; as a consequence, the same total current is spread over a number of loads which is one less than before, so that the current on each load is higher. The maximum currents of the remaining breakers is selected so that each breaker opening causes the current of one (and only one more) more breaker to exceed its maximum value. As a consequence, a chain of very closely spaced events is triggered, until M breakers are open.