CA2590144A1 - Dual voltage switching of induction generator or motor - Google Patents
Dual voltage switching of induction generator or motor Download PDFInfo
- Publication number
- CA2590144A1 CA2590144A1 CA002590144A CA2590144A CA2590144A1 CA 2590144 A1 CA2590144 A1 CA 2590144A1 CA 002590144 A CA002590144 A CA 002590144A CA 2590144 A CA2590144 A CA 2590144A CA 2590144 A1 CA2590144 A1 CA 2590144A1
- Authority
- CA
- Canada
- Prior art keywords
- dual
- leg
- voltage
- voltage generator
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
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.
Claims (21)
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.
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 hydro-electric 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.
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.
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.
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.
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.
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 hydro-electric 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.
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 hydro-electric 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.
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.
transitioning between two or more voltage levels by inserting and/or removing resistance and/or capacitance following a systematic timing scheme.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80334906P | 2006-05-26 | 2006-05-26 | |
| US60/803,349 | 2006-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2590144A1 true CA2590144A1 (en) | 2007-11-26 |
| CA2590144C CA2590144C (en) | 2012-03-06 |
Family
ID=38788286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2590144A Expired - Fee Related CA2590144C (en) | 2006-05-26 | 2007-05-25 | Dual voltage switching of induction generator or motor |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2590144C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110268592A (en) * | 2016-12-09 | 2019-09-20 | 维斯塔斯风力系统集团公司 | The improvement of idle power supply in wind power plant |
-
2007
- 2007-05-25 CA CA2590144A patent/CA2590144C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110268592A (en) * | 2016-12-09 | 2019-09-20 | 维斯塔斯风力系统集团公司 | The improvement of idle power supply in wind power plant |
| CN110268592B (en) * | 2016-12-09 | 2022-12-13 | 维斯塔斯风力系统集团公司 | Improvements in reactive power supply in wind power plants |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2590144C (en) | 2012-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180525 |