Integral Starter/Generator Technology for Oil-Free Turbine Engines

With increased use of electric power on Army air and ground vehicles, compact, lightweight integrated turbo-generator sets with electric start capability are needed. Foil air bearings for high temperature oil free gas turbines are now feasible. Otherbarriers include electrical insulation and structurally sound components for applicable generator technologies. Electrodynamics Associates, Inc. has developed expertise in high-speed starter generators that will be applicable. In addition, we have teamedwith Williams International and R&D Dynamics to address the issues relating to integration with the high-speed turbine using foil air bearings. During Phase I, we propose to select high power density generator and controls technology for high-speed,hightemperature environment, create preliminary designs addressing electromagnetic, control system, as well as structural, thermal, dry bearing, and rotor dynamics issues. During Phase I Option, we will produce generator design layout, test electricalinsulation scheme for high temperature, and simulate the start mode and generate mode operation using Matlab/Simulink software. This will prepare us for fabrication, test, and demonstration of a high-speed starter generator unit, in high temperatureenvironment during potential Phase II. Compact light weight and cost effective integral starter generators will find use on military and commercial vehicles, and also as UPS for emergency power requirements in industry and businesses including departmentstores, hospitals and others.