Patent ID: 7490026
Filing Date: 2009-02-10
Classification: G05B,G06F

Abstract:
1. A method for simulating an electrical network, whereby the inconsistencies in a system of differential equations of the electrical network are detected by the following steps: providing a computer system including a memory, an arithmetic unit, an input device and an output device; providing a system of equations describing the electrical network, the equations having the form wherein executing a test method for providing error information relating to inconsistencies in the system of equations on the computer system, the test method having the following steps 1 to 3: step 1: setting up a dependence matrix and otherwise setting the element step 2: determining a set of row ranks each having the numbers of those rows of the dependence matrix step 3: outputting at the output device error information containing the numbers contained in each row rank determined in step 2 and in each column rank determined in step 2; wherein the row rank includes a set C i) no transversal T of the matrix ii) for each element c of C the column rank comprises a set C i) no transversal T of the matrix ii) for each element c of C