State Space Simulation Of Spacecraft Power Systems

Abstract

This paper presents a modular state variable approach for the simulation of large and complex spacecraft power systems. Each component in the spacecraft power system is treated as a multi-port network, and a state model is written with the port voltages as the inputs. The state model of a component is solved independently of the other component state models using the state transition matrix method. The port voltages of each component are assumed to be clamped during the solution of the state models. Network analysis principles are then employed to calculate the new value of all port voltages.