Power control system and method
First Claim
1. A control device for a generator driven by a prime mover, said generator, coupled with one or more electrical loads, comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said control device comprising:
- a processor, including a programming code operable on the processor, coupled with the generator output power controller and the generator speed indicator;
wherein said processor is configured to measure a rate of change in speed of the generator, via a first line, and to vary the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change regardless of electrical power required by the one or more electrical loads.
0 Assignments
0 Petitions
Accused Products
Abstract
This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to the change. The control device applies a signal to reduce the generator output power and another signal to restore the generator output power. The power control system may include a transmission, a speed converter, and/or an accessory.
22 Citations
46 Claims
-
1. A control device for a generator driven by a prime mover, said generator, coupled with one or more electrical loads, comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said control device comprising:
-
a processor, including a programming code operable on the processor, coupled with the generator output power controller and the generator speed indicator; wherein said processor is configured to measure a rate of change in speed of the generator, via a first line, and to vary the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change regardless of electrical power required by the one or more electrical loads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A control device for a generator driven by a prime mover, said generator comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said control device comprising:
-
a processor, including a programming code operable on the processor, coupled with the generator output power controller and the generator speed indicator; wherein said processor is configured to measure a rate of change in speed of the generator, via a first line, and to vary the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change, wherein the speed-control signal comprises at least one of a phase modulated signal and step signal when the rate of change is above a threshold value, wherein the speed-control signal comprises a phase modulated signal when the algebraic sign of the rate of change is negative and wherein a duty cycle of the phase modulated signal is in proportion to the rate of change. - View Dependent Claims (17, 18)
-
-
19. A control device for a generator driven by a prime mover, said generator comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said control comprising:
-
a processor, including a programming code operable on the processor, coupled with the generator output power controller and the generator speed indicator; wherein said processor is configured to measure a rate of change in speed of the generator, via a first line, and to vary the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change, and wherein the processor is further configured to measure an output voltage of the generator, via a third line, and apply a voltage-control signal to the generator output power controller, via a fourth line, to maintain the output voltage substantially at a regulation voltage.
-
-
20. A control device for a generator driven by a prime mover, said generator comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed said control device comprising:
-
a processor, including a programming code operable on the processor, coupled with the generator output power controller and the generator speed indicator; wherein said processor is configured to measure a rate of change in speed of the generator, via a first line, and to vary the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change, and wherein the processor is further configured to measure an output voltage of the generator, via a third line, and apply a voltage-control signal to the generator output power controller, via the second line, to maintain the output voltage substantially at a regulation voltage, and wherein the regulation voltage is varied according to said rate of change. - View Dependent Claims (21, 22, 23)
-
-
24. A control device for a generator, said generator, coupled with one or more electrical loads, comprising a shaft driven at a speed, a generator output power controller capable of manipulating an output power of the generator, and a generator speed indicator capable of generating a signal indicative of the generator speed, said control device comprising:
-
a processor, including a programming code operable on the processor, coupled with the generator output power controller and the generator speed indicator; wherein said processor is configured to measure a rate of change in speed of the generator, via a first line, and to vary the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change regardless of electrical power required by the one or more electrical loads.
-
-
25. A method for controlling a generator driven by a prime mover, said generator, coupled with one or more electrical loads, comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said method comprising:
-
(a) measuring a rate of change in speed of the generator, via a first line; and (b) varying the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change regardless of electrical power required by the one or more electrical loads. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A method for controlling a generator, said generator, coupled with one or more electrical loads, comprising a shaft driven at a speed, a generator output power controller capable of manipulating an output power of the generator, and a generator speed indicator capable of generating a signal indicative of the generator speed, said method comprising:
-
(a) measuring a rate of change in speed of the generator, via a first line; and (b) varying the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change regardless of electrical power required by the one or more electrical loads.
-
-
39. A method for controlling a generator driven by a prime mover, said generator comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said method comprising:
-
(a) measuring a rate of change in speed of the generator, via a first line; and (b) varying the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change and further comprising measuring an output voltage of the generator, via a third line, and applying a voltage-control signal to the generator output power controller, via a fourth line, to maintain the output voltage substantially at a regulation voltage.
-
-
40. A method for controlling a generator driven by a prime mover, said generator comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said method comprising:
-
(a) measuring a rate of change in speed of the generator, via a first line; and (b) varying the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change, wherein the speed-control signal comprises at least one of a phase modulated signal and step signal when the rate of change is above a threshold value, wherein the speed-control signal comprises a phase modulated signal when the algebraic sign of the rate of change is negative, and, wherein a duty cycle of the phase modulated signal is in proportion to the rate of change. - View Dependent Claims (41, 42)
-
-
43. A method for controlling a generator driven by a prime mover, said generator comprising a generator output power controller capable of manipulating an output power of the generator and a generator speed indicator capable of generating a signal indicative of the generator speed, said method comprising:
-
(a) measuring a rate of change in speed of the generator, via a first line; and (b) varying the output power of the generator by applying a speed-control signal to the generator output power controller, via a second line, according to said rate of change and further comprising measuring an output voltage of the generator, via a third line, and applying a voltage-control signal to the generator output power controller, via the second line, to maintain the output voltage substantially at a regulation voltage and varying the regulation voltage according to said rate of change. - View Dependent Claims (44, 45, 46)
-
Specification