Parallel Operation of Battery Chargers in Small Satellite Electrical Power Systems

Autor: H. Priyadarshnam, Mallikarjun Kompella, R. Sudharshan Kaarthik, M. S. Harsha Simha
Rok vydání: 2019
Předmět:
Zdroj: 2019 IEEE 16th India Council International Conference (INDICON).
DOI: 10.1109/indicon47234.2019.9030303
Popis: CubeSats are a class of nano-satellites primarily built using commercial off-the-shelf components for electronics and structure, aimed at space and atmospheric research. The Electrical Power System (EPS) of the CubeSat is responsible for extracting power from solar panels to provide regulated power to all the satellite subsystems and using the surplus power to charge the satellite’s batteries in order to sustain the satellite’s operations during eclipses. The battery charger integrated circuit, with the photovoltaic (PV) input, should be able to charge the batteries of the satellite while extracting maximum power from the solar panels. Since there are multiple solar panels for a given satellite, the chosen charging scheme should be able to operate in parallel from different PV inputs and common battery output terminals. This manuscript describes parallel operation of a PV battery charger, which is capable of interfacing PV panels of different incident solar radiation with a common battery. Experimental results are presented to validate the circuit operation.
Databáze: OpenAIRE