A generator system may include two or more generators electrically connected through a generator bus. A controller receives operation data from a first generator. The operation data may describe a power flow from a second generator to the first generator. From the operation data, either a loss of sp
A generator system may include two or more generators electrically connected through a generator bus. A controller receives operation data from a first generator. The operation data may describe a power flow from a second generator to the first generator. From the operation data, either a loss of speed control or a loss of voltage control may be identified at the second generator. The controller may generate a command for the second generator based on the loss of speed control or the loss of voltage control.
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1. An apparatus comprising: a memory configured to store expected operating parameters for a system of generators including a first generator and a second generator, wherein the expected operating parameters include a threshold for reverse power and a threshold for output voltage; anda processor con
1. An apparatus comprising: a memory configured to store expected operating parameters for a system of generators including a first generator and a second generator, wherein the expected operating parameters include a threshold for reverse power and a threshold for output voltage; anda processor configured to receive operation data for the first generator and the second generator, wherein the operation data include reverse power levels and an output voltage level, wherein the processor is configured to determine deviations between a reverse power level for the first generator and the threshold for reverse power and between an output voltage and the threshold for output voltage, wherein the processor is configured to generate a disconnection command for the second generator when the deviation for the reverse power level for the first generator exceeds an allowable range. 2. The apparatus of claim 1, wherein the allowable range is a first allowable range, wherein the processor is configured to generate a disconnection command for the second generator when the deviation for the reverse power level for the first generator exceeds the first allowable range and the deviation between the output voltage and the threshold for output voltage exceeds a second allowable range. 3. The apparatus of claim 1, wherein the deviation for the reverse power level for the first generator indicates reverse real power and a loss of speed control at the second generator. 4. The apparatus of claim 1, wherein the deviation for the reverse power level for the first generator indicates reverse reactive power and a loss of excitation control at the second generator. 5. The apparatus of claim 1, wherein the processor is operable in a normal mode and an emergency mode, wherein, in the normal mode, a disconnection command for the second generator is initiated when the deviation for the reverse power level for the first generator exceeds the allowable range, and wherein, in the normal mode, no disconnection command is initiated. 6. The apparatus of claim 5, wherein the processor is operable in a hybrid mode for initiating a timer based on the deviation for the reverse power level for the first generator exceeds the allowable range, wherein the disconnection command is initiated when the timer reaches a predetermined level. 7. A system comprising: a first generator coupled to a generator bus;a second generator coupled to the generator bus; anda controller configured to identify a power flow from the first generator to the second generator through the generator bus and determine a loss of generator control based on operation data for the first generator or the second generator,wherein the controller disconnects the second generator based on a loss of speed control or a loss of voltage control, wherein the power flow includes reactive power when the loss of generator control is a loss of excitation control and the power flow includes real power when the loss of generator control is a loss of speed control. 8. A method comprising: storing, at a memory, expected operating parameters for a system of generators including a first generator and a second generator,wherein the expected operating parameters include a threshold for reverse power and a threshold for output voltage;receiving, at a processor, operation data for the first generator and the second generator, wherein the operation data include reverse power levels and an output voltage level,determining, by the processor, deviations between a reverse power level for the first generator and the threshold for reverse power;determining, by the processor, deviations between an output voltage and the threshold for output voltage; andinitiating, in a normal mode, a disconnection command for the second generator is initiated when the deviation for the reverse power level for the first generator exceeds an allowable range, and wherein, in the normal mode, no disconnection command is initiated. 9. The method of claim 8, further comprising: generating a disconnection command for the second generator when the deviation for the reverse power level for the first generator exceeds a first allowable range and the deviation between the output voltage and the threshold for output voltage exceeds a second allowable range. 10. The method of claim 8, further comprising: generating a disconnection command for the second generator when the deviation for the reverse power level for the first generator exceeds an allowable range. 11. The method of claim 10, wherein the deviation for the reverse power level for the first generator indicates reverse real power and a loss of speed control at the second generator. 12. The method of claim 10, wherein the deviation for the reverse power level for the first generator indicates reverse reactive power and a loss of excitation control at the second generator. 13. The method of claim 8, further comprising: initiating, in a hybrid mode, a timer based on the deviation for the reverse power level for the first generator exceeds the allowable range, wherein the disconnection command is initiated when the timer reaches a predetermined level. 14. The method of claim 8, further comprising: receiving a user selection for an operation mode selected from a normal mode, a hybrid mode, and an emergency mode. 15. The method of claim 14, wherein the emergency mode maintains connections during failures. 16. The method of claim 14, further comprising: accessing, from the memory, an operation mode from a plurality of operation modes based on handling failures in the system of generators.
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이 특허에 인용된 특허 (2)
Nakamura Tadao,JPX, Automatic load distributing apparatus for generator and method of controlling same.
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