Energy packet control of generator prime mover and control processing

Patent metadata

Field	Value
Publication number	US-11777426-B2
Application number	US-202217676526-A
Country	US
Kind code	B2
Filing date	Feb 21, 2022
Priority date	Feb 21, 2022
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets, perform post-processing actions on the energy packets to generate processed energy packets, and convert the processed energy packets into a fuel valve reference. Post-processing may include a calibration correction to remove measurement artifacts.

First claim

What is claimed is:

1. A control system for a prime mover of a monitored machine, the control system comprising:
an energy packet control to:
calculate energy packets associated with the monitored machine,
perform post-processing actions on the energy packets to generate processed energy packets, and
convert the processed energy packets into a fuel valve reference; and

a frequency control to generate frequency error corrections and power setpoint adjustments for the monitored machine,
wherein the energy packet control updates the fuel valve reference faster than the frequency control generates the frequency error corrections and the power setpoint adjustments;
an adder circuit in communication with the energy packet control and the frequency control, the adder circuit configured to add the fuel valve reference and the frequency error corrections to determine a prime mover power reference; and\
a communications interface configured to provide the prime mover power reference to a fuel valve control mechanism of the monitored machine such that a fuel flow rate of fuel from a fuel source is controlled in accord with the prime mover reference.

2. The control system of claim 1 , wherein the post-processing actions comprise calibration correction to remove measurement artifacts.

3. The control system of claim 1 , wherein the post-processing actions comprise using a filter.

4. The control system of claim 1 , wherein the post-processing actions comprise removing signal outliers.

5. The control system of claim 1 , wherein the post-processing actions comprise correction of mechanical properties through input-output mapping.

6. A device to control a prime mover of a monitored machine, the device comprising:
an energy packet measurement feedback loop comprising an energy packet control to calculate energy packets associated with the monitored machine, perform post-processing actions on the energy packets to generate processed energy packets, and convert the processed energy packets into a fuel valve reference;\
a frequency control feedback loop comprising:
a power measurement sensor to obtain a power measurement of the monitored machine, and
a frequency control in communication with a state complement filter, the frequency control to apply a droop factor to a blended power feedback and output a frequency power feedback; and

a fuel valve calculator in communication with an energy packet measurement control and the frequency control, the fuel valve calculator to add the fuel valve reference and the frequency power feedback to determine a prime mover power reference, and provide the prime mover power reference to a fuel valve control of the monitored machine such that a fuel flow rate of fuel from a fuel source is controlled in accord with the prime mover reference;
wherein the energy packet control provides the fuel valve reference faster than the frequency control outputs the frequency power feedback and the fuel valve calculator provides the prime mover power reference.

7. The device of claim 6 , wherein the post-processing actions comprise calibration correction to remove measurement artifacts.

8. The device of claim 6 , wherein the post-processing actions comprise using a filter.

9. The device of claim 6 , wherein the post-processing actions comprise correction of mechanical properties through input-output mapping.

Assignees

• Schweitzer Engineering Lab Inc

Inventors

• Schweitzer Iii Edmund O
• Zweigle Gregary C
• Manson Scott M
• Blood Ellery A

Classifications

• H02P9/04 Primary

  Control effected upon non-electric prime mover and dependent upon electric output value of the generator · CPC title

• F02C9/263 Primary

  by means of fuel metering valves · CPC title

• H02P9/10

  Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load · CPC title

• H02P9/42

  to obtain desired frequency without varying speed of the generator · CPC title

• F05D2220/76

  an electrical generator · CPC title