Aircraft starter/generator electrical system with mixed power architecture
AssigneeHamilton Sundstrand Corporation
InventorRichard J. Hoppe
Life of this patent
Estimating the term…
Abstract
A starter/generator electrical system for gas turbine powered aircraft with mixed power architecture to combine advantages of each. The mixed power architecture may be selected from constant frequency (CF), adjustable variable frequency (AVF) and narrow range variable frequency (NRVF) alternating current (AC) systems to suit aircraft requirements for on-board electric components and redundancy, with at least two separate power generation systems provided for each gas turbine engine on the aircraft.
Claims7
A starting and generating system for gas turbine engine powered aircraft comprising:
- a first electrical power generation system that provides adjustable variable frequency (AVF) alternating current (AC) coupled to each engine comprising a dynamoelectric machine for starting the engine and generating electrical power for a first group of on-board electrical components that require AVF AC power;
- a first electrical power bus coupled to each first electrical power generation system for distributing power from its respective first electrical power generation system to the first group of on-board electrical components;
- and
- a second electrical power generation system coupled to each engine for generating narrow range variable frequency (NRVF) AC electrical power for a second group of on-board electrical components that require NRVF AC power.
A starting and generating system for gas turbine engine powered aircraft comprising:
- a first electrical power generation system coupled to each engine that provides adjustable variable frequency (AVF) alternating current (AC) comprising a dynamoelectric machine for starting the engine and generating electrical power for a first group of on-board electrical components that require AVF AC power;
- a first electrical power bus coupled to each first electrical power generation system for distributing power from its respective first electrical power generation system to the first group of on-board electrical components;
- a second electrical power generation system coupled to each engine for generating narrow range variable frequency (NRVF) AC electrical power for a second group of on-board electrical components that require NRVF AC power.
Dependencies are inferred from the claim text.