OVERLOAD CONTROL OF AN ELECTRIC POWER GENERATION SYSTEM
First Claim
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1. A control system for an electrical power generating system (EPGS) comprising:
- a calculating device for determining a calculated required voltage needed to sustain a measured current level of an electrical load with available power of an engine of the EPGS; and
a voltage controller for controlling an output of a generator of the EPGS at a voltage that corresponds to the calculated required voltage, when electrical load on the EPGS exceeds the power of the engine.
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Abstract
A control system for an electrical power generation system (EPGS) provides overload protection without disconnecting a generator of the EPGS from an excessive electrical load. Available engine power and current levels of the electrical load are continuously measured. A command voltage is calculated that corresponds to a voltage required to sustain with the maximum available power. Output voltage of a generator of the EPGS is controlled at the calculated command voltage so that a power limit of the engine is not exceeded during electrical overload conditions.
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Citations
20 Claims
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1. A control system for an electrical power generating system (EPGS) comprising:
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a calculating device for determining a calculated required voltage needed to sustain a measured current level of an electrical load with available power of an engine of the EPGS; and a voltage controller for controlling an output of a generator of the EPGS at a voltage that corresponds to the calculated required voltage, when electrical load on the EPGS exceeds the power of the engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A control apparatus for electrical power generating system (EGPS) comprising:
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a sensor for sensing a level of current of an electrical load applied to a generator of the EPGS; a controller for controlling output voltage of the generator; and a calculating device for determining a determined voltage required to provide the sensed level of current to the electrical load with power available from an engine of the EPGS;
whereinthe calculating device and the controller are interconnected so that the output voltage corresponds to the determined voltage when the electrical load exceeds power available from the engine whereby overload protection is provided for the engine and the generator. - View Dependent Claims (11, 12)
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13. A method for controlling an electrical power generation system (EPGS) comprising the steps of:
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determining available power from an engine of the EPGS; determining a current level on a power bus of the EPGS; calculating a voltage required to sustain the determined current level with the determined available power from the engine; and controlling an output voltage of a generator of the EPGS at the calculated voltage. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification