Title :
Improved solar array power point model with SPICE realization
Author :
Glass, Michael C.
Author_Institution :
Lockheed Missiles & Space Co., Inc. Sunnyvale, CA, USA
Abstract :
An improved and simplified formulation is given for a solar array current-voltage model. This model curve matches a specified maximum power point (i,v) specification, in addition to the open-circuit and short-circuit specifications. The improved model has a simplified numerical solution, which is practical for SPICE simulation of orbital-scale electrical power systems. This paper presents the mathematical development of the solar array model solution, and the form of the necessary Newton/Raphson equations. The iterative nonlinear solution is then realized in a SPICE model of the solar array, which is then demonstrated in an orbital-time-scale satellite power system simulation
Keywords :
Newton-Raphson method; SPICE; photovoltaic power systems; short-circuit currents; solar cell arrays; solar cells; space vehicle power plants; Newton/Raphson equations; SPICE realization; current-voltage model; iterative nonlinear solution; maximum power point specification; model curve; open-circuit; orbital-scale electrical power systems; orbital-time-scale satellite power system; short-circuit; solar array power point model; Circuits; Glass; Mathematical model; Power system analysis computing; Power system modeling; Power system simulation; Power system stability; SPICE; Satellites; Temperature;
Conference_Titel :
Energy Conversion Engineering Conference, 1996. IECEC 96., Proceedings of the 31st Intersociety
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-3547-3
DOI :
10.1109/IECEC.1996.552886
