Systems and methods for controlling acceleration of a power generator
First Claim
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1. An electromagnetic braking system comprising:
- an electrically conductive disc coupled to a rotatable shaft of a power generation system for operating in an island mode, wherein the rotatable shaft is operatively coupled between a prime mover and a generator for supplying power to an island grid;
a controller for receiving at least one status signal from the power generation system and for generating a control signal based on the at least one status signal;
an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft within a predefined time period; and
an island load management unit for sending a load-predicted signal to the controller for use in generating the control signal, wherein the load-predicted signal includes time and information related to a new load.
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Abstract
An electromagnetic braking system includes an electrically conductive disc coupled to a rotatable shaft of a power generation system for operating in an island mode. The rotatable shaft is operatively coupled between a prime mover and a generator for supplying power to an island grid. The electromagnetic braking system further includes a controller for receiving at least one status or synchronization signal and for generating a control signal based on the at least one signal and an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft.
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Citations
12 Claims
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1. An electromagnetic braking system comprising:
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an electrically conductive disc coupled to a rotatable shaft of a power generation system for operating in an island mode, wherein the rotatable shaft is operatively coupled between a prime mover and a generator for supplying power to an island grid; a controller for receiving at least one status signal from the power generation system and for generating a control signal based on the at least one status signal; an inducting unit for applying an electromagnetic braking force on the electrically conductive disc when commanded by the control signal to regulate a rotational speed of the rotatable shaft within a predefined time period; and an island load management unit for sending a load-predicted signal to the controller for use in generating the control signal, wherein the load-predicted signal includes time and information related to a new load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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receiving at least one status signal representative of a rotational speed of a rotatable shaft of a power generation system operating in an island mode, a power load at an island grid, a current at a power generator, a rotor angle of the power generator, an electrical power produced by the power generator or combinations thereof; determining a control signal based on the at least one status signal; applying an electromagnetic braking force on an electrically conductive disc when commanded by the control signal to regulate the rotational speed of the rotatable shaft within a predefined time period; receiving a load-predicted signal from an island load management unit, wherein the load-predicted signal includes time and information related to a new load; sending a power-increase signal to a prime mover to increase mechanical power corresponding to the information related to the new load; and releasing the electromagnetic braking force on the electrically conductive disc when the new load is added to the island grid. - View Dependent Claims (10, 11, 12)
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Specification