Simulation of networks with ideal switches
Dietmar Skowronn, Duwang Li, R. Tymerski · International Journal of Electronics · 1994
Recently developed simulation techniques that may be used for switched networks, as typified by switching power converters, are reviewed. The use of the numerical inverse Laplace transform is useful in performing equation integration and resolution of inconsistent initial conditions. Step-size control algorithms used for error control are examined and it is seen that an algorithm which does not change the step size at each step may be exploited to optimize simulation speed by reusing the previously determined factorization of the system matrix. Two examples are given which illustrate the relative gains of this optimization as well as illustrating the need for sparse matrix techniques in solving equations. The problem of simulating networks containing unsolvable intermediate topologies is also highlighted.