On the fault-injection-caused increase of the DAE-index in analogue fault simulation
Bernd Straube, Kurt J. Reinschke, Wolfgang Vermeiren, Klaus Röbenack, Bert Müller, Christoph Clauß · 2003
This paper demonstrates the possibility of the occurrence of numerical problems in analogue fault simulation due to a fault-injection-caused increase of the DAE-index. Based on analytical results and fault simulation experiments with two electrical networks it is shown that a network showing no numerical problems during its fault-free simulations may increase its index as a result of the injection of a fault. The higher index causes numerical problems during the simulation. Some suggestions to tackle such index problems are discussed.