A New Approach To The Real-Time Simulation Of Control Systems With Discontinuities

Control systems consisting of a subsystem with discontinuities often cause problems in digital simulation. An approach which replaces the subsystems with a function table is suggested. The dynamic equations of the control subsystem with discontinuities are integrated off-line over a time interval which will be used as the step-size for the on-line integration of the whole control system. This off-line integration uses a sufficiently small step size and the necessary algorithm to handle the discontinuities of the subsystem. The process is repeated for a matrix of initial conditions and inputs. In the on-line real-time simulation, table lookup and linear interpolation are used to update the subsystem with discontinuities while the rest of the control system is integrated with conventional real-time algorithms