1 / 12

System Integration of Power and Energy

System Integration of Power and Energy. Soldier Systems Technology Roadmap Power/Energy/Sustainability Workshop September 21-22-23, 2009 Vancouver, B.C. State of the Art Overview Mr. David Cripe, Rockwell Collins Inc. Basic Assumptions of Soldier Systems Power/Energy System.

ardara
Télécharger la présentation

System Integration of Power and Energy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. System Integration of Power and Energy Soldier Systems Technology RoadmapPower/Energy/Sustainability WorkshopSeptember 21-22-23, 2009Vancouver, B.C. State of the Art Overview Mr. David Cripe, Rockwell Collins Inc.

  2. Basic Assumptions of Soldier Systems Power/Energy System High-level power requirements for the Soldier System The Soldier System electronics present a intermittent power demand. Energy must be stored to meet the requirements of the electronics. Sources must be provided for replenishment of the energy storage. Strategy: Define the problem space and success metrics.

  3. Present Power Support is Point-Based, Not Systemic • ‘Christmas-Tree’ architecture places energy storage at the point-of use, discourages centralization and commonality of storage, load-handling, power optimization, networking. • Limited use of rechargeable cells presents logistics problems for distribution of primary batteries, recycling waste. • System power input consists of replacing batteries • Power use is overshadowed by resupply and recycling requirements.

  4. Viewing the System Challenge: Integration of Power and Energy • Energy storage capability is a key limiter/enabler for mission duration for the dismounted soldier • Hydrocarbon fuels (fuel cells) allow higher energy density than electrochemical storage (batteries) • Power Generation/Energy Harvesting would require batteries to serve as ‘hold-up’ for intermittent loads, not primary power source. • Proper balance of Power Generation/Energy Harvesting/Energy Storage capabilities in SolSys provides optimal mission duration, weight reduction.

  5. Metrics to be Considered During System Design/Component Selection: • Safety/Stability of Fuels and Batteries • Redundancy/Graceful Degradation of System • Dynamics - Motion - Weight • Signature Emissions (thermal, optical, noise, fumes, etc.) • Fuel/Battery Logistics/Availability/Risks • SWAP-C • Cabling/Integration • Range of Mission Permitted

  6. What is the Proper Mix of Power Sources? • Power source requirements will be determined by mission definition. • Fuel Cells require dedicated supply logistics, fuel capacity defines mission duration. • Biomechanical and Photovoltaic generation are intermittent, place burden on battery storage, but could compliment fuel cells • Power source diversity allows mission flexibility

  7. Risks of Overspecialization • The Giant Panda only eats bamboo. Its habitat is limited, and it is an endangered species. • The Rat eats anything, and lives everywhere. • A narrow selection of power sources makes logistics and distribution critical. Limit single-source dependencies.

  8. Overview of the State of the Art of Soldier Systems Power and Energy Batteries: LiFePO4, conformal, structural Fuel Cells: Methanol, Butane, advanced H-storage Photovoltaic: Flexible thin-film Si, Organic Capacitive Energy Storage Biomechanical Energy Harvesting Bionic Power, Lightning Packs Power Conditioning Load-line optimization, battery sharing/charging

  9. What researchers are working on now (Promising technologies in-development)‏ • Thermoionic/Photoelectric (physical bandgap devices) • Nano-Thermoelectric • Spintronics • J-TEC (proton-membrane cells) • High-Energy-Density Capacitors (EEStor) • Advanced Fuel-Cells (Al, JP-8) • New Battery Chemistries (NiZn, ?)

  10. What is currently being done in Canada Pragmatic approaches, consideration of OTS solutions, AA alkalines as quasi-standard format. ISSP is a ground-up opportunity to make intelligent, lasting system design choices.

  11. The Vision for the Next 5 to 7 Years for Soldier Systems Power and Energy Development Increased energy density of battery/capacitor storage. Distributed/Integrated energy storage Diverse power source/energy harvesting options. Higher efficiencies of Energy Harvesting as an enabling technology. Unconventional energy sources: biomass, LENF, spintronics, RF harvesting Smart power conditioning to maximize available power, optimize battery performance. Evolution of Soldier Systems as System Goal: True Self-Sufficiency

More Related