Handling of the initial conditions for simulation of transients in power networks

In order to simulate power circuits with the difference admittance method it is necessary to know all the voltages and currents in the network branches. With the implied Euler method only the capacity voltages and the inductivity currents have to be known. So it makes sense to do one step with the implied Euler rule first and after that to continue calculating with the difference admittance method. It will be shown that if linear, symmetrical networks are given in space phasors, then it is possible to simulate with the synchronized difference admittance method SDLV3 with any step size after an implied Euler step.