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US 10,122,308 B2Granted
Adaptive control system for a variable speed electrical generator
AssigneeCummins Power Generation IP, Inc.
InventorMark E. Turpin
Life of this patent
Estimating the term…
Abstract
Systems, apparatuses, and methods are disclosed herein for controlling a variable speed electrical generator. The method includes setting a threshold for a parameter of an output power of the generator set, operating an engine of the generator set at a first speed to provide the output power to a load, comparing the parameter of the output power to the threshold over a plurality of changes in a demand of the load, and determining whether to adjust a speed of the engine from the first speed to a second speed in response to the comparison of the parameter to the threshold.
Claims18
A method, comprising:
- recording a load response history comprising changes in a voltage of a generator set over a plurality of changes in demand of a load;
- determining a threshold for a magnitude of a voltage decrease of an output power of the generator set;
- operating an engine of the generator set at a first speed to provide the output power to a load;
- comparing the magnitude of the voltage decrease to the threshold over the plurality of changes in a demand of the load reflected in the load response history;
- and
- determining whether to adjust a speed of the engine in response to the comparison of the magnitude of the voltage decrease to the threshold over the plurality of changes in the demand of the load reflected in the load response history, wherein determining whether to adjust the speed of the engine comprises at least one of the following:
- reducing the speed of the engine from the first speed to a second speed lower than the first speed in response to determining the magnitude of the voltage decrease is less than the threshold;
- determining not to adjust the speed of the engine in response to determining the magnitude of the voltage decrease is greater than the threshold;
- or
- increasing the speed of the engine from the first speed to a third speed greater than the first speed in response to determining the magnitude of the voltage decrease is greater than the threshold.
7 more elements
An apparatus comprising:
- circuitry configured to:
- record a load response history comprising changes in a voltage of a generator set over a plurality of changes in demand of a load;
- determine a threshold for a magnitude of a voltage decrease of an output power of the generator set;
- operate an engine of the generator set at a first speed to provide the output power to a load;
- compare the magnitude of the voltage decrease to the threshold over the plurality of changes in a demand of the load reflected in the load response history;
- and
- determine whether to adjust a speed of the engine in response to the comparison of the magnitude of the voltage decrease to the threshold over the plurality of changes in the demand of the load reflected in the load response history, wherein the circuitry is configured to do at least one of the following:
- reduce the speed of the engine from the first speed to a second speed lower than the first speed in response to determining the magnitude of the voltage decrease is less than the threshold;
- determine not to adjust the speed of the engine in response to determining the magnitude of the voltage decrease is greater than the threshold;
- or
- increase the speed of the engine from the first speed to a third speed greater than the first speed in response to determining the magnitude of the voltage decrease is greater than the threshold.
8 more elements
A generator set, comprising:
- an engine;
- a generator coupled to the engine and driven by the engine to generate electrical power;
- and
- a controller communicably coupled to the engine and configured to:
- record a load response history comprising changes in a voltage of the generator set over a plurality of changes in demand of a load;
- determine a threshold for a magnitude of a voltage decrease of an output power of the generator set;
- operate the engine of the generator set at a first speed to provide the output power to a load;
- compare the magnitude of the voltage decrease to the threshold over the plurality of changes in a demand of the load reflected in the load response history;
- and
- determine whether to adjust a speed of the engine in response to the comparison of the magnitude of the voltage decrease to the threshold over the plurality of changes in the demand of the load reflected in the load response history, wherein the controller is configured to do at least one of the following:
- reduce the speed of the engine from the first speed to a second speed lower than the first speed in response to determining the magnitude of the voltage decrease is less than the threshold;
- determine not to adjust the speed of the engine in response to determining the magnitude of the voltage decrease is greater than the threshold;
- or
- increase the speed of the engine from the first speed to a third speed greater than the first speed in response to determining the magnitude of the voltage decrease is greater than the threshold.
11 more elements
Dependencies are inferred from the claim text.