Integrated electrical power extraction for aircraft engines
First Claim
1. An aircraft power system comprising:
- an aircraft engine comprising a plurality of engine spools;
a plurality of AC bus generators driven by at least one engine spool, wherein each AC bus generator is independently operational to supply AC power to a respective AC power bus; and
at least one generator driven by a different engine spool, wherein the at least one generator is operational to supply AC power to each AC power bus in synchronization with each respective AC bus generator.
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Accused Products
Abstract
An aircraft power system includes an aircraft engine having a plurality of engine spools, a plurality of AC generators driven by at least one spool, wherein each AC generator is independently operational to supply AC power to a respective AC power bus or a respective power electronics module, and at least one generator driven by a different engine spool, wherein the at least one generator is operational to supply additional AC power to each AC power bus in synchronization with each respective AC generator, or to supply additional AC power to each power electronics module in parallel with the AC power delivered to each power electronics module by the plurality of AC generators. The power electronics module(s) are operational to selectively provide either AC or DC power to desired distribution buses. Each AC generator and the at least one generator may be responsive to commands from an electrical power extraction (EPX) controller. At least one generator may be directly driven to provide variable frequency power.
58 Citations
30 Claims
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1. An aircraft power system comprising:
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an aircraft engine comprising a plurality of engine spools; a plurality of AC bus generators driven by at least one engine spool, wherein each AC bus generator is independently operational to supply AC power to a respective AC power bus; and at least one generator driven by a different engine spool, wherein the at least one generator is operational to supply AC power to each AC power bus in synchronization with each respective AC bus generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An aircraft power system comprising:
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an aircraft engine; a plurality of AC generators driven by the aircraft engine, wherein each AC generator is independently operational to supply AC power to a desired power electronics module in response to commands from an electrical power extraction (EPX) controller; and at least one generator driven by the aircraft engine, wherein the at least one generator is operational to selectively supply additional AC power to each desired power electronics module in parallel with each respective AC generator in response to commands from the EPX controller. - View Dependent Claims (20, 21)
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22. An aircraft power system comprising:
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an aircraft engine comprising a plurality of engine spools; a plurality of AC bus generators driven by at least one engine spool, wherein each AC bus generator is independently operational to supply AC power to a respective power electronics module; and at least one generator driven by a different engine spool, wherein the at least one generator is operational to supply additional AC power to each power electronics module in parallel with each respective AC generator. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification