Dynamic frequency to voltage ratio for regulator machine
A voltage regulator for a generator having a dynamic voltage-to-frequency (V/F) ratio includes a memory, a voltage calculator, and a selection module. The memory is configured to store a plurality of voltage-frequency curves for the generator. The voltage calculator is configured to receive data indicative of an output of the generator and configured to determine a resistance value from the output of the generator and a voltage value from the output of the generator. The selection module configured to select a voltage-frequency curve from the plurality of voltage-frequency curves in response to the resistance value and configured to select a voltage-frequency ratio from the selected voltage-frequency curve in response to the voltage value. An output adjustment for the generator is determined in response to the selected voltage-frequency ratio.
1. A method for operation of a voltage regulator of a generator, the method comprising:
receiving resistance data for an output of the generator;
receiving voltage data for the output of the generator;
selecting a voltage-frequency curve according to the resistance data;
selecting a voltage-frequency ratio from the voltage-frequency curve according to a frequency associated with an output of the generator; and
calculating an output adjustment for the generator in response to the selected voltage-frequency ratio and the voltage data.
2. The method of claim 1 , wherein the voltage-frequency curve includes a slope extending from a first frequency value to a second frequency level.
3. The method of claim 1 , wherein the voltage-frequency curve is selected from a plurality of voltage-frequency curves.
4. The method of claim 3 , wherein a slope for a first curve of the plurality of voltage-frequency curves is different than a slope for a second curve of the plurality of voltage-frequency curves.
5. The method of claim 1 , wherein the voltage-frequency ratio is selected from a voltage-frequency curve according to a speed of an engine coupled to the generator.
6. The method of claim 1 , further comprising:
receiving speed data for the generator, wherein the output adjustment is calculated based on the speed data and the selected voltage-frequency ratio.
7. The method of claim 1 , further comprising:
identifying a target output for the generator in response to voltage data; and
summing the target output and the output adjustment.
8. The method of claim 1 , further comprising:
modifying a voltage-frequency curve in response to the resistance data, wherein the voltage-frequency curve provides the voltage-frequency ratio.
9. A voltage regulator for a generator having a dynamic voltage-to-frequency (V/F) ratio, the voltage regulator comprising:
a memory configured to store a plurality of voltage-frequency curves for the generator;
a voltage calculator configured to receive data indicative of an output of the generator and configured to determine a resistance value from the output of the generator and a voltage value from the output of the generator; and
a selection module configured to select a voltage-frequency curve from the plurality of voltage-frequency curves in response to the resistance value and configured to select a voltage-frequency ratio from the selected voltage-frequency curve in response to the voltage value,
wherein an output adjustment for the generator in response to the selected voltage-frequency ratio.
10. The voltage regulator of claim 9 , wherein the voltage-frequency ratio is selected from a voltage-frequency curve according to a frequency associated with the output of the generator.
11. The voltage regulator of claim 9 , wherein each of the plurality of voltage-frequency curves includes a slope extending from a first frequency value to a second frequency level.
12. The voltage regulator of claim 11 , wherein the slope for a first curve of the plurality of voltage-frequency curves is different than the slope for a second curve of the plurality of voltage-frequency curves.
13. The voltage regulator of claim 9 , wherein the voltage-frequency ratio is selected from the selected voltage-frequency curve according to a speed of an engine coupled to the generator.
14. The voltage regulator of claim 9 , wherein the output adjustment is calculated based on speed data and the selected voltage-frequency ratio.
15. The voltage regulator of claim 9 , further comprising:
a controller configured to identify a target output for the generator in response to voltage data add the target output and the output adjustment.
16. An engine-generator set comprising:
an engine;
a generator; and
a voltage regulator comprising:
a memory configured to store a plurality of voltage-frequency curves for the generator;
a voltage calculator configured to receive data indicative of an output of the generator and configured to determine a resistance value from the output of the generator and a speed value; and
a selection module configured to select a voltage-frequency curve from the plurality of voltage-frequency curves in response to the resistance value and configured to select a voltage-frequency ratio from the selected voltage-frequency curve in response to the speed value,
wherein an output adjustment for the generator in response to the selected voltage-frequency ratio.
17. The engine-generator of claim 16 , wherein the speed value indicates a speed of the engine.
18. The engine-generator of claim 16 , wherein the speed value indicates a frequency for an output of the generator.