초록 ▼

A system and method for switching from one voltage to another voltage are disclosed. The system relates to an induction generator or motor that switches between a first voltage and a second voltage. The method comprises transitioning between two or more voltage levels by inserting and removing resis

A system and method for switching from one voltage to another voltage are disclosed. The system relates to an induction generator or motor that switches between a first voltage and a second voltage. The method comprises transitioning between two or more voltage levels by inserting and removing resistance and capacitance following a systematic timing scheme. The generator/motor may have one or more windings, such as a primary and auxiliary winding.

대표청구항 ▼

I claim: 1. A dual voltage generator having a first leg variably connected to a first hot line and a second leg switched between a second hot line and a neutral line, the dual voltage generator comprising, for switching from a low voltage to a high voltage: a module configured to insert a resistor

I claim: 1. A dual voltage generator having a first leg variably connected to a first hot line and a second leg switched between a second hot line and a neutral line, the dual voltage generator comprising, for switching from a low voltage to a high voltage: a module configured to insert a resistor between the first leg and the first hot line and to disconnect a neutral line from a second leg; a module configured to close a first switch, after the first period of time to connect the second hot line to the generator; and a module configured to open a second switch, after a second period of time and close a third switch to remove the resistor from being between the first leg and the first hot line. 2. The dual-voltage generator of claim 1, wherein the dual voltage generator is driven by a variable power source. 3. The dual-voltage generator of claim 2, wherein the variable power source is one of a wind turbine, a solar powered engine or a variable flow hydroelectric plant. 4. The dual-voltage generator of claim 1, wherein the dual-voltage generator generates one of single phase power or three phase power. 5. The dual-voltage generator of claim 1, wherein when the first line is one of a 120V, 230V or 460V line. 6. The dual-voltage generator of claim 1, wherein the module configured to insert a resistor, the module configured to close the first switch and module configured to open the second switch, switch the dual-voltage generator from a lower voltage to a higher voltage. 7. The dual-voltage generator of claim 1, further comprising for switching from high voltage to a low voltage: a module configured to insert the resistor between the first leg and the first hot line and to remove a run capacitance from between the first hot line and a connection to an auxiliary winding; a module configured to connect the neutral line to the second leg after a period of time; a module configured to remove the resistor from between the first hot line and the first leg after a period of time; and a module configured to insert the run capacitance back in between the first hot line and the connection to the auxiliary winding. 8. A dual-voltage generator having a first leg always connected to a first hot line and a second leg switched between a second hot line and a neutral line, the dual-voltage generator comprising: a first module configured to switch the dual-voltage generator from lower voltage to a higher voltage, the first module performing the steps: inserting a resistor between the first hot line and the first leg; disconnecting the neutral line from the second leg of the dual-voltage generator; after a first period of time, connecting the second hot line to the second leg; and after a second period of time, removing the resistor. 9. The dual-voltage generator of claim 8, further comprising a second module configured to switch the dual-voltage generator from a higher voltage to a lower voltage, the second module performing the steps: inserting the resistor in between the first hot line and the first leg; removing a run capacitance between the first hot leg and an auxiliary winding; removing the hot line from the second leg; connecting the neutral line to the second leg after a third period of time; removing the resistor after a forth period of time; inserting the run capacitance back into the system after a fifth period of time. 10. The dual-voltage generator of claim 9, wherein the first, second, third, forth and fifth periods of time may or may not be the same. 11. The dual-voltage generator of claim 9, wherein the steps of inserting the resistor between the first hot leg and connecting the neutral line further comprises opening a first switch between the needed line and the second leg, closing a second switch and opening a third switch to insert the resistor. 12. The dual-voltage generator of claim 11, wherein the step of connecting the second hot line to the second leg further comprises closing a fourth switch between the second hot line and the second leg. 13. The dual-voltage generator of claim 12, wherein: inserting the resistor between the first line and the first leg further comprises opening the fourth switch, closing the second switch and opening the third switch; and removing the run capacitance comprising a fifth switch. 14. The dual-voltage generator of claim 13, wherein: connecting the neutral line to the second leg further comprises closing the first switch; and removing the resistor comprises opening the same switch; and inserting the run capacitance further comprises closing the fifth switch. 15. The dual-voltage generator of claim 8, wherein the dual-voltage generator switches between at least two of 120V, 230V, 240V and 460V. 16. The dual-voltage generator of claim 8, wherein the dual-voltage generator is driven by a variable power source. 17. The dual-voltage generator of claim 16, wherein the variable power source is one of a wind turbine, a variable hydroelectric plant or a solar powered generator. 18. In a dual-voltage generator having a first leg always connected to a first hot line and a second leg switched between a second hot line and a neutral line, a method of switching from one voltage to another voltage, the method comprising: switching from a first voltage to a second voltage by: inserting a resistor between the first hot line and the first leg; disconnecting the neutral line from the second leg of the dual-voltage generator; connecting the second hot line to the second leg after a first period of time; and removing the resistor after a second period of time; and inserting the resistor in between the first hot line and the first leg; removing a run capacitance between the first hot leg and auxiliary winding; connecting the neutral line to the second leg after a third period of time; removing the resistor after a fourth period of time; and inserting the run capacitance back into the system after a fifth period of time. 19. The method of claim 18, wherein the dual-voltage generator is one of a wind turbine, a variable hydroelectric plant, or a solar power generator. 20. A dual-voltage generator comprising: means for transitioning from a first voltage level to a second voltage level by inserting a first resistance and/or a first capacitance and removing a second resistance and/or a second capacitance according to a timing scheme. 21. A method of switching from one voltage to another voltage in an induction generator/motor, the method comprising: transitioning between two or more voltage levels by inserting and/or removing resistance and/or capacitance following a systematic timing scheme.