Gas turbine engine and electrical system
First Claim
1. A turbomachine, comprising:
- a high pressure rotor;
a low pressure rotor; and
an electrical system configured to supply power to two electrical busses, the electrical system including;
a first controller configured to control operation of the turbomachine;
a second controller coupled to the first controller;
a first electrical machine in mechanical communication with the high pressure rotor;
a second electrical machine in mechanical communication with the low pressure rotor;
a first inverter-converter controller and a third inverter-converter controller, each coupled to both the second controller and the first electrical machine, wherein the first inverter-converter controller is coupled to, and is dedicated to, a first electrical bus of the two electrical busses and is configured to provide electrical power to the first electrical bus under direction from the second controller, and wherein the third inverter-converter controller is coupled to, and is dedicated to, a second electrical bus of the two electrical busses and is configured to provide electrical power to the second electrical bus under direction from the second controller;
a second inverter-converter controller and a fourth inverter-converter controller, each coupled to both the second controller and the second electrical machine, wherein the second inverter-converter controller is coupled to, and is dedicated to, the first electrical bus and is configured to provide electrical power to the first electrical bus under direction from the second controller, and wherein the fourth inverter-converter controller is coupled to, and is dedicated to, the second electrical bus and is configured to provide electrical power to the second electrical bus under direction from the second controller;
an energy storage system configured to supply power to and absorb power from the two electrical busses; and
a converter controller coupled to the energy storage system, the second controller and the two electrical busses, wherein the converter controller is configured to control an amount of electrical power supplied to the two electrical busses from the energy storage system under direction from the second controller, and configured to control an amount of electrical power received from the two electrical busses and supplied to the energy storage system under direction from the second controller;
wherein the first inverter-converter controller and the second inverter-converter controller are configured to provide electrical power to the first electrical bus in parallel under the direction of the second controller; and
wherein the third inverter-converter controller and the fourth inverter-converter controller are configured to provide electrical power to the second electrical bus in parallel under the direction of the second controller.
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Accused Products
Abstract
A gas turbine engine includes an electrical system that includes a controller coupled to a first inverter/converter controller, a second inverter/converter controller, and a converter/controller that is coupled to an energy storage device. The system is configured to provide electrical power to a first electrical bus and a second electrical bus, from first and second electrical machines, under the direction of the controller. The converter controller is configured to control the amount of electrical power supplied to the first electrical bus and the second electrical bus from the energy storage system. The amount of electrical power received from the first electrical bus and the second electrical bus, and energy supplied to the energy storage system are under the direction of the controller.
37 Citations
20 Claims
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1. A turbomachine, comprising:
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a high pressure rotor; a low pressure rotor; and an electrical system configured to supply power to two electrical busses, the electrical system including; a first controller configured to control operation of the turbomachine; a second controller coupled to the first controller; a first electrical machine in mechanical communication with the high pressure rotor; a second electrical machine in mechanical communication with the low pressure rotor; a first inverter-converter controller and a third inverter-converter controller, each coupled to both the second controller and the first electrical machine, wherein the first inverter-converter controller is coupled to, and is dedicated to, a first electrical bus of the two electrical busses and is configured to provide electrical power to the first electrical bus under direction from the second controller, and wherein the third inverter-converter controller is coupled to, and is dedicated to, a second electrical bus of the two electrical busses and is configured to provide electrical power to the second electrical bus under direction from the second controller; a second inverter-converter controller and a fourth inverter-converter controller, each coupled to both the second controller and the second electrical machine, wherein the second inverter-converter controller is coupled to, and is dedicated to, the first electrical bus and is configured to provide electrical power to the first electrical bus under direction from the second controller, and wherein the fourth inverter-converter controller is coupled to, and is dedicated to, the second electrical bus and is configured to provide electrical power to the second electrical bus under direction from the second controller; an energy storage system configured to supply power to and absorb power from the two electrical busses; and a converter controller coupled to the energy storage system, the second controller and the two electrical busses, wherein the converter controller is configured to control an amount of electrical power supplied to the two electrical busses from the energy storage system under direction from the second controller, and configured to control an amount of electrical power received from the two electrical busses and supplied to the energy storage system under direction from the second controller; wherein the first inverter-converter controller and the second inverter-converter controller are configured to provide electrical power to the first electrical bus in parallel under the direction of the second controller; and wherein the third inverter-converter controller and the fourth inverter-converter controller are configured to provide electrical power to the second electrical bus in parallel under the direction of the second controller. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A gas turbine engine, comprising:
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a high pressure spool; a low pressure spool; a controller; and a first electrical machine coupled to the low pressure spool and coupled to a first inverter-converter controller and a third inverter-converter controller, with the first inverter-converter controller being coupled to, and dedicated to, a first electrical bus and the third inverter-converter controller being coupled to, and dedicated to, a second electrical bus; a second electrical machine coupled to the high pressure spool and coupled to a second inverter-converter controller and a fourth inverter-converter controller, with the second inverter-converter controller being coupled to, and dedicated to, the first electrical bus and the fourth inverter-converter controller being coupled to, and dedicated to, the second electrical bus; an energy storage system configured to supply power to and absorb power from the first electrical bus and the second electrical bus; and a converter controller coupled to the energy storage system, the controller, the first electrical bus, and the second electrical bus, wherein the converter controller is configured to control an amount of electrical power supplied to the first electrical bus and the second electrical bus from the energy storage system under direction from the controller, and to control an amount of electrical power received from the first electrical bus and from the second electrical bus and supplied to the energy storage system under direction from the controller; wherein the first inverter-converter controller and the third inverter-converter controller are configured to provide electrical power in parallel to the first electrical bus under direction from the controller; and wherein the second inverter-converter controller and the fourth inverter-converter controller are configured to provide electrical power in parallel to the second electrical bus under direction from the controller. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A gas turbine engine, comprising:
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a high pressure spool; a low pressure spool; and an electrical system configured to supply power in parallel to a first electrical bus and a second electrical bus, the electrical system including; a first controller configured to control operation of the gas turbine engine; a second controller coupled to the first controller; a first electrical machine in mechanical communication with the high pressure spool; a second electrical machine in mechanical communication with the low pressure spool; a first inverter-converter controller and a third inverter-converter controller, each coupled to both the second controller and the first electrical machine, wherein the first inverter-converter controller is coupled to, and is dedicated to, the first electrical bus and is configured to provide electrical power to the first electrical bus under direction from the second controller, and wherein the third inverter-converter controller is coupled to, and is dedicated to, the second electrical bus and is configured to provide electrical power to the first second electrical bus under direction from the second controller; a second inverter-converter controller and a fourth inverter-converter controller, each coupled to both the second controller and the second electrical machine, wherein the second inverter-converter controller is coupled to, and is dedicated to, the first electrical bus and is configured to provide electrical power to the first electrical bus under direction from the second controller, and wherein the fourth inverter-converter controller is coupled to, and is dedicated to, the second electrical bus and is configured to provide electrical power to the second electrical bus under direction from the second controller; an energy storage system configured to supply power to and absorb power from the first electrical bus and the second electrical bus; and a converter controller coupled to the energy storage system, the second controller, the first electrical bus, and the second electrical bus, wherein the converter controller is configured to control an amount of electrical power supplied to both the first electrical bus and the second electrical bus from the energy storage system under direction from the second controller, and to control an amount of electrical power received from both the first electrical bus and the second electrical bus and supplied to the energy storage system under direction from the second controller. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification