eLibrary Search
The FRA eLibrary contains all the documents that are found throughout the FRA Public Website. Multiple pages on the website may link to the same eLibrary item based on its set of metatdata.
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Technical Reports
Comparison of Major Parameters in Electrodynamic and Electromagnetic Levitation Transport Systems
Keywords: Suspensions, High Speed Ground Transportation, Magnetic Levitation, Linear Induction Motors, Linear Synchronous Motors, Ride Comfort
Abstract: This study compiles quantitative design information that can be used in selecting a high-speed magnetic levitation system. Analytic models were developed for three...
Technical Reports
Inverter-Controlled ac Induction Motor Propulsion System Volume I: Executive Summary
Keywords: ac Traction Motor, dc Chopper, Inverter Drive Unit, Power Conversion Unit, Pulse-Width Modulation
Abstract: An inverter-controlled ac induction motor propulsion system for rail transit cars was designed, developed, and tested to verify projected benefits and applicability of ac over...
Technical Reports
Inverter-Controlled ac Induction Motor Propulsion System Volume II: Final Report
Keywords: ac Traction Motor, dc Chopper, Inverter Drive Unit, Power Conversion Unit, Pulse-Width Modulation
Abstract: An inverter-controlled ac induction motor propulsion system for rail transit cars was designed, developed, and tested to verify projected benefits and applicability of ac over...
Technical Reports
Chopper Locomotive Demonstration Program Phase II, Final Report
Keywords: Chopper Controls, Power Factor, Electric Propulsion
Abstract: An E44 electric locomotive of 5000 hp, 6 axles and 6 motors was used as a test bed to evaluate full scale use of 6 separate high power DC to DC choppers for propulsion. The normal...
Technical Reports
Optimum Power Conditioning and Motor Combination for Locomotive Traction
Keywords: Alternative Power, Voltage, Induction Motor
Abstract: This is the interim report describing the results of the research on Phase I, the first year, of this contract. The object of the research is to study alternate power conditioning...