Abstract

Optimal energy systems is currently designing and manufacturing flywheel-based energy storage systems that are being used to provide pulses of energy for charging high-voltage capacitors in a mobile military system. These systems receive their energy from low-voltage vehicle bus power (28 VDC) and provide output power at over 10,000 VDC without the need for DC-DC voltage conversion electronics. This energy conversion is accomplished through the use of OES-patented ultra-highspeed flywheel power module (FPoM) technology. In this paper, recent test data is presented for a prototype FPoM high-voltage capacitor charging source. Adaptation of the technology to energy storage for conceptual multimode mobility functions in a military vehicle design with electric propulsion and advanced electrical loads is described. Physical system design parameters are summarized for both the prototype FPoM hardware and conceptual hybrid electric vehicle application. Transient PSPICE electrical analyses and MSC/Nastran finite element analyses characterize operation and response in a conceptual high-rate pulsed power and multimode energy storage environment involving (i) regenerative braking, (ii) power peak leveling, and (iii) high-voltage capacitor charging

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