DYNAMIC LOAD-SHARING POWER SYSTEM
First Claim
1. A power system, comprising:
- a plurality of power sources;
at least one power consumer driven by the plurality of power sources;
an input device configured to generate a signal indicative of a desired output of the at least one power consumer;
a load manager associated with the at least one power consumer and configured to create a power demand for the plurality of power sources based on the signal and an actual output of the power consumer; and
a controller in communication with the load manager and the plurality of power sources, the controller being configured to;
determine a plurality of performance goals for the plurality of power sources;
determine a priority of the plurality of performance goals;
retrieve from each of the plurality of power sources at least one performance map corresponding with each of the plurality of performance goals; and
selectively apportion the power demand between of each of the plurality of power sources based on the at least one performance map and based on the determined priority.
1 Assignment
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Accused Products
Abstract
A power system is provided for a marine or petroleum drilling vessel. The power system may have a plurality of power sources, at least one power consumer, and an input device configured to generate a signal indicative of a desired output. The power system may also have a load manager associated with the at least one power consumer and configured to create a power demand for the plurality of power sources based on the signal and an actual output, and a controller. The controller may be configured to determine a plurality of performance goals for the plurality of power sources, determine a priority of the performance goals, retrieve from the plurality of power sources at least one performance map corresponding with each performance goal, and selectively apportion the power demand between of each of the plurality of power sources based on the at least one performance map and based on the determined priority.
12 Citations
20 Claims
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1. A power system, comprising:
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a plurality of power sources; at least one power consumer driven by the plurality of power sources; an input device configured to generate a signal indicative of a desired output of the at least one power consumer; a load manager associated with the at least one power consumer and configured to create a power demand for the plurality of power sources based on the signal and an actual output of the power consumer; and a controller in communication with the load manager and the plurality of power sources, the controller being configured to; determine a plurality of performance goals for the plurality of power sources; determine a priority of the plurality of performance goals; retrieve from each of the plurality of power sources at least one performance map corresponding with each of the plurality of performance goals; and selectively apportion the power demand between of each of the plurality of power sources based on the at least one performance map and based on the determined priority. - 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. A control network for a power system having a plurality of engines, a plurality of generators driven by the plurality of engines, and at least one electrical load driven by the plurality of generators, the control network comprising:
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a load manager configured to receive input from an operator of the power system indicative of a desired output of the at least one electrical load and to responsively create a power demand for the plurality of generators based on the input and an actual output of the at least one electrical load; an engine controller associated with each of the plurality of engines; and a power system controller in communication with the load manager and the engine controller of each of the plurality of engines, the power system controller configured to; determine at least one performance goal for the plurality of engines associated with at least one of fuel consumption, emissions, and transient response; retrieve from each of the engine controllers of each of the plurality of engines a performance map corresponding with the performance goal; determine a priority for the at least one performance goal; and selectively apportion the power demand unequally between of each of the plurality of engines based on the performance map and based on the determined priority.
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20. A method of controlling a power system, comprising:
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operating a plurality of engines to power a propeller and auxiliary loads of a marine vessel; receiving a signal indicative of a desired output of the propeller and the auxiliary loads; creating a power demand for the plurality of engines based on the signal and an actual power output of the propeller and auxiliary loads; determining a plurality of performance goals for the plurality of engines associated with at least one of fuel consumption, emissions, and transient response; prioritizing the plurality of performance goals; retrieving from each of the plurality of engines at least one performance map corresponding to the plurality of performance goals; and selectively apportioning the power demand unequally between of each of the plurality of engines based on the at least one performance map and a priority of the plurality of performance goals.
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Specification