Power flow analysis of spacecraft power systems

Results are presented of recent work in the area of spacecraft power system analysis. The network description used for spacecraft power systems analysis must allow for node (bus) voltages that do not have a common reference point. Techniques from linear graph theory are used to develop a three-port admittance description of a four-terminal network. The admittance matrix is used in a typical Newton-Raphson power-flow algorithm to solve for all voltage magnitudes and angles as well as the real and reactive power flows through all network branches