Controller for a generator

Patent metadata

Field	Value
Publication number	US-11329539-B2
Application number	US-202016815199-A
Country	US
Kind code	B2
Filing date	Mar 11, 2020
Priority date	Mar 11, 2020
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A system including a generator and a controller. The generator includes a permanent magnet generator (PMG), and an exciter. The controller manages operations of the generator. The controller includes an alternating current to direct current (AC-to-DC) converter that generates a direct current (DC) voltage, an exciter drive that provides a DC current to the exciter of the generator using the DC voltage created by the AC-to-DC converter in accordance with the control signal, and a regulator controller that drives the active AC-to-DC converter.

First claim

What is claimed is:

1. A system comprising:
a generator comprising:
a permanent magnet generator (PMG), and
an exciter; and
a controller managing operations of the generator, the controller comprising:
an alternating current to direct current (AC-to-DC) converter generating a direct current (DC) voltage,
an exciter drive providing a DC current to the exciter using the DC voltage created by the AC-to-DC converter in accordance with the control signal, and
a regulator controller driving the active AC-to-DC converter,
wherein the AC-to-DC converter comprises an AC-to-DC link regulator, the AC-to-DC link regulator rectifying an AC voltage received from the permanent magnet generator (PMG) of the generator into a DC link of the controller.

2. The system of claim 1 , wherein the AC-to-DC converter comprises an AC-to-DC link regulator.

3. The system of claim 2 , wherein the AC-to-DC link regulator rectifies an AC voltage received from the PMG into a DC link of the controller.

4. The system of claim 1 , wherein the regulator controller comprises a DC regulator controller.

5. The system of claim 4 , wherein the DC regulator controller generates and provides a control signal to drive the AC-to-DC converter.

6. The system of claim 5 , wherein the DC regulator controller receives one or more feedback signals from a DC link of the controller and manages the control signal in accordance with the one or more feedback signals.

7. The system of claim 1 , wherein the DC voltage is generated as constant.

8. The system of claim 1 , wherein the controller comprises an exciter drive controller that receives and utilizes one or more feedback signals from a main output of the generator to provide a pulse width modulation (PWM) control signal to the exciter drive, and
wherein the exciter drive provides the DC current to the exciter from the DC voltage based on the PWM control signal.

9. The system of claim 1 , wherein the AC-to-DC converter comprises a boost converter.

10. The system of claim 9 , wherein the regulator controller comprises a boost converter controller.

11. The system of claim 10 , wherein the boost converter and the boost converter controller of the controller convert 3-Phase PMG to a fixed high voltage for use in driving the exciter.

12. A method implemented by a controller managing operations of a generator comprising:
generating a control signal by a regulator of the controller;
providing the control signal by the regulator to an alternating current to direct current (AC-to-DC) converter of the controller;
driving, by the control signal, the AC-to-DC converter to generate a direct current (DC) voltage; and
providing a DC current to an exciter of the generator using the DC voltage created by the AC-to-DC converter in accordance with the control signal,
wherein the AC-to-DC converter comprises an AC-to-DC link regulator, the AC-to-DC link regulator rectifying an AC voltage received from a permanent magnet generator (PMG) of the generator into a DC link of the controller.

13. The method of claim 12 , wherein the regulator controller comprises a DC regulator controller.

14. The method of claim 13 , wherein the DC regulator controller generates and provides a control signal to drive the AC-to-DC converter.

15. The method of claim 14 , wherein the DC regulator controller receives one or more feedback signals from a DC link of the controller and manages the control signal in accordance with the one or more feedback signals.

16. The method of claim 12 , wherein the DC voltage is generated as constant.

17. The method of claim 12 , wherein the controller comprises an exciter drive controller that receives and utilizes one or more feedback signals from a main output of the generator to provide a pulse width modulation (PWM) control signal to the exciter drive, and
wherein the exciter drive provides the DC current to the exciter from the DC voltage based on the PWM control signal.

18. The method of claim 12 , wherein the AC-to-DC converter comprises a boost converter, and wherein the regulator controller comprises a boost converter controller.

19. The method of claim 18 , wherein the boost converter and the boost converter controller of the controller convert 3-Phase PMG to a fixed high voltage for use in driving the exciter.

20. A method implemented by a controller managing operations of a generator comprising:
generating a control signal by a regulator of the controller;
providing the control signal by the regulator to an alternating current to direct current (AC-to-DC) converter of the controller;
driving, by the control signal, the AC-to-DC converter to generate a direct current (DC) voltage; and
providing a DC current to an exciter of the generator using the DC voltage created by the AC-to-DC converter in accordance with the control signal,
wherein the regulator controller comprises a DC regulator controller.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Vandergrift Adrian E
• Joyce Thomas P
• Vanevenhoven Jordan K
• Filipski Natalie

Classifications

• H02K19/36 Primary

  Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches · CPC title

• H02K19/12

  characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing · CPC title

• H02P9/14 Primary

  by variation of field (H02P9/08, H02P9/10 take precedence) · CPC title

• H02P9/302

  Brushless excitation · CPC title

• H02P2201/03

  AC-DC converter stage controlled to provide a defined DC link voltage · CPC title