Advanced Hybrid Power System (AHPS)

Orbital proposes the evaluation and implementation of a new advanced hybrid power system that provides increased mission capability, significantly improves fuel efficiency and reduces logistics risks. The proposed work provides a modular power system that is significantly lighter and smaller than existing deployed systems for a more mobile combat force. Fuel is one of the top three logistics burdens within the DoD. All branches of the military are seeking advanced power technologies that will allow for increased energy efficiency and sustainability. The Air Force is seeking solutions to provide increased capabilities and benefits to advance aviation, expeditionary, and ground support systems. According to Air Force websites, the targeted products should focus on energy resiliency, efficiency, cost-effectiveness, and environmental sustainability; while demonstrating a viable approach to rapid deployment. Orbital, through modelling and analysis, will research the implementation of a hybrid power system using an innovative controlled adjustable speed drive (ASD) system in combination with new high-efficiency generator and engine technologies in order to implement and test a prototype of a compact, high-efficiency, advanced hybrid power system (AHPS). The primary goals of the proposed project are to 1) increase power output to weight ratio, 2) improve fuel efficiency through optimization by load balancing the system and 3) create a modular power system platform that can be utilized in various ground and aerial applications. Orbital’s research will evaluate and compare the AHPS for application to stand-alone generators, vehicle energy systems and UAS power systems. The results of the proposed research would advance hybrid-electric drivelines and mobile power systems within the Air Force with applications in other expeditionary forces. It is currently proposed that the AHPS would replace existing power system designs in a much smaller form factor, providing up to 70% reduction in size and a fuel efficiency improvement up to 40%. AHPS would also allow for multi-fuel capability, integrate into existing distributed (microgrid) capability and improve load balancing. Orbital’s proposed solution is based on a proprietary ASD technology that has already demonstrated the potential for significant fuel efficiency improvements for individual front-end accessory drives and can be used with existing military engine accessories. The combination of mechanical ASD’s high efficiency, high power density generators and rotary engines can dramatically reduce the size of generator systems and increase fuel efficiency. Applications for the technology include implementation within ground vehicle and UAS systems which allows for increased flexibility and mobility of mobile power systems.