Title :
Power conditioning electronics for a 500 Wh inertial energy storage system
Author :
Eakin, Vickie J. ; Rodriguez, G.Ernest ; Paulkovich, John
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Abstract :
A description is given of a pulse-width-modulated buck-boost converter designed to interface a 500 Wh space power inertial energy storage system operating from 70 to 140 VDC to a constant bus of 150 VDC. Implementation of hysteresis feedback control provides excellent voltage regulation. The design is based on a 300 Wh, 94% Wh efficient prototype and is currently being optimized to yield 97% overall watt-hour efficiency
Keywords :
energy storage devices; power convertors; pulse width modulation; space vehicle power plants; voltage regulators; 0.5 kWh; 150 V; 70 to 140 V; 97 percent; PWM power convertors; buck-boost converter; flywheel; hysteresis feedback control; inertial energy storage system; space power; voltage regulation; Circuits; Energy storage; Flywheels; Low earth orbit satellites; Power conditioning; Power generation; Pulse modulation; Pulse width modulation converters; Space vehicles; Voltage;
Conference_Titel :
Energy Conversion Engineering Conference, 1989. IECEC-89., Proceedings of the 24th Intersociety
Conference_Location :
Washington, DC
DOI :
10.1109/IECEC.1989.74386
