AC/DC Generator

EAI has designed an AC+DC generator suitable for aircraft applications. The generator is a variable speed machine with a nominal speed of 8000 rpm. It provides a 28V DC output with a nominal rating of 400A, and a 115/ 200 V, three-phase output with a nominal rating of 5 kVA and a power factor of 0.7 to 1. This is a compact generator with the capability of eliminating the need for external inverters to provide AC power on helicopters. This helps improve the power density, efficiency, and reliability of the electric power system on helicopters. A controller to provide independent voltage regulation for the AC and DC power as well as protective functions is also designed. Additional information on the AC+DC generator is available upon request.

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 Integral Starter Generators

Integral starter generators that range in power from 5kW to 200kW and operate at speeds up to 60,000 RPM. EAI has developed units under contracts from both the US Army Research Laboratory and Air Force Research Laboratory.

These generators operate in high temperature environments and provide engine start function as well. High temperature insulation schemes are employed. Compact power electronic controllers have DSP based control systems. Additional information on available integral starter generator designs are available upon request.