Title :
Flexible electrical power system controller design and battery integration for 1U to 12U CubeSats
Author :
Notani, Shailesh ; Bhattacharya, Subhashish
Author_Institution :
Electr. & Comput. Eng. Dept., North Carolina State Univ., Raleigh, NC, USA
Abstract :
The paper presents the power distribution system architecture, hardware and software design and specifications of the electrical power system (EPS) for CubeSats. The sources of power in these CubeSats are solar panels on each of their six faces. The maximum power point tracking (MPPT) techniques are used to maximize the output of power from these solar panels. The EPS also has two Li-ion batteries mounted on it, the capacity of the batteries depend on the size and configuration of the CubeSat. The EPS has three flexible battery charging modules (FBCM) to charge the battery and seven independent flexible digital point of load (FDPOL) converters to drive the loads. The digital control is provided by TI TMS320F28335 DSP which runs the MPPT algorithms, takes feedback from the loads, runs the battery State of Health (SOH) and State of Charge (SOC) determination algorithms and determines state of health of the EPS.
Keywords :
digital control; digital signal processing chips; lithium; maximum power point trackers; power convertors; power distribution control; secondary cells; DSP; EPS; FBCM; FDPOL; Li; Li-ion batteries; MPPT techniques; SOC; battery integration; cubesats; digital control; electrical power system; flexible battery charging modules; flexible electrical power system controller design; hardware design; load converters; maximum power point tracking techniques; power distribution system architecture; software design; solar panels; Batteries; Impedance; Payloads; Power systems; Prototypes; Satellites; Voltage control;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4577-0542-7
DOI :
10.1109/ECCE.2011.6064262
