TECHNOLOGY AREAS: Air Platform, Space Platforms

ACQUISITION PROGRAM: F-35 Joint Strike Fighter Program

The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.

OBJECTIVE: Develop innovative concepts to improve the efficiency and power density of aircraft electrical power generation systems.

DESCRIPTION: Electrical power generation systems have inherent inefficiencies due to electrical and mechanical loss mechanisms. The no-load and full-load losses, winding resistances, hysteresis losses, eddy current losses, stator and rotor heat thermal operating limits are some of the inefficiencies that continue to challenge modern day generator designs.

The Navy is seeking new technologies to increase the power density and efficiency of today�s electrical power generation system. This can be accomplished through improvements to the existing electrical power generation system or through new and novel power generation system architectures/designs. The existing Joint Strike Fighter (JSF) 270 Volt Direct Current (DC), 80 Kilowatt (KW) generator has been selected as the configuration baseline for this effort. Approaches should be capable of meeting JSF power quality standards, while producing a minimum of 80 Kilowatts, in an envelop not to exceed 2900 cubic inches and weighing less than 125 pounds.

PHASE I: Define and prove through the use of modeling the feasibility for proposed power generation system. Provide analysis of expected improvements (i.e. size, weight, efficiency, power output, reliability, etc.).

PHASE II: Design, develop and demonstrate a bread board of proposed power generation system. Conduct a comprehensive analysis of potential integration and interface issues.

PHASE III: Package new electrical power generation technology to transition to the JSF.

PRIVATE SECTOR COMMERCIAL POTENTIAL/DUAL-USE APPLICATIONS: The results of this work can be commercialized to numerous industries requiring electrical power generation systems including aviation, automotive, utilities, etc. This will result in an increase in power density and efficiency for electrical power generation devices that will ultimately result in improved reliability, smaller size/weight, and increased power output when compared to today�s state-of-the-art generation capabilities.

REFERENCES:
1. Chapman, S. J., (2003). Electric Machinery Fundamentals, (3rd Ed.). Crawfordsville: McGraw Hill.

2. Fitzgerald, A.E., Kingsley Jr., C., & Umans, S. D. (Year) Electric Machinery. (5th Ed.), Crawfordsvill: McGraw Hill.

3. El-Hawary, M. E., (2000). Electrical Energy Systems. United States: CRC Press LLC

4. MIL-STD-704F, Aircraft Electrical Power Characteristics

KEYWORDS: Generator; Power Density; Efficiency; Electrical Power; Aircraft; Thermal

** TOPIC AUTHOR (TPOC) **

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