IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0377368
(2005-05-05)
|
등록번호 |
US-8610308
(2013-12-17)
|
국제출원번호 |
PCT/US2005/015421
(2005-05-05)
|
§371/§102 date |
20091211
(20091211)
|
발명자
/ 주소 |
- Shires, Jerry O.
- Beutel, Raymond L.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
8 |
초록
▼
A system for combining electrical power from two or more power sources includes first and second conversion stages (120) which receive input power from two or more power sources (110), and produce different output voltages, including DC outputs. The input power sources (110) may have different volta
A system for combining electrical power from two or more power sources includes first and second conversion stages (120) which receive input power from two or more power sources (110), and produce different output voltages, including DC outputs. The input power sources (110) may have different voltage, frequency, and phase characteristics, and may be DC voltages. Various embodiments are disclosed for converting and combining the input power sources (110) to provide at least a DC output voltage and an optional AC output voltage which may have different voltage, frequency, and phase characteristics than the input power sources (110). In another embodiment, a method of power conversion is disclosed.
대표청구항
▼
1. A system capable of combining electrical power from two or more disparate power sources, the system comprising: a first stage configured to receive a plurality of inputs, each of the plurality of inputs from one of the two or more disparate power sources, a first of the two or more disparate powe
1. A system capable of combining electrical power from two or more disparate power sources, the system comprising: a first stage configured to receive a plurality of inputs, each of the plurality of inputs from one of the two or more disparate power sources, a first of the two or more disparate power sources having a first load and a first power level associated therewith and a second of the two or more disparate power sources having a second load and a second power level associated therewith, the first stage providing a first DC output for each of the plurality of inputs;a power conversion stage receiving each of the first DC outputs and generating at least one DC output to one or more output terminals at a configured voltage, frequency and phase, wherein the power conversion stage further converts the first DC output from the first power source and the first DC output from the second power source into the at least one DC output in proportion to a load level and a power level of the first power source and the second power source, wherein the power conversion stage further provides an AC output at an output frequency different from frequencies of the power sources. 2. The system of claim 1, wherein the first stage further includes: switching circuitry for selective switching, responsive to switching control signals, to generate the at least one DC output from the first input from the first power source and the second input from the second power source in proportion to the load level and the power level of the first power source and the second power source; anda controller for generating the switching control signals responsive to the load level and the power level of each of the first power source and the second power source. 3. The system of claim 1, wherein the power conversion circuitry further includes: first and second conversions stages configured to produce an isolated voltage as output thereof responsive to each of the DC outputs; andcircuitry for combining at least the isolated voltages and providing the at least one DC output to one or more associated output terminals. 4. The system of claim 1, wherein the power conversion stage further provides two AC output voltages having different phase characteristics from each other. 5. The system of claim 1, wherein the first power source is a single phase AC voltage source and the second power source is a three-phase AC voltage source. 6. The system of claim 1, wherein the first power source is a DC voltage source and the second power source is an AC voltage source. 7. The system of claim 1, wherein the power conversion stage further includes a DC-AC inverter. 8. The system of claim 1, further comprising: a system controller which at least receives, as inputs thereof, user inputs, the inputs from the first and second power sources, and the AC output;wherein, the system controller includes means to provide control signals operative to control switching within the power conversion stage; andwherein, responsive to the control signals, one or more characteristics of the AC output are controlled to user-defined values. 9. The system of claim 8, wherein the one or more characteristics of the at least one AC output controlled by the system controller include a voltage magnitude and a phase of the AC output. 10. The system of claim 1, wherein the power conversion stage controls a frequency of the AC output to be a selectable frequency in the range of approximately 50 to 800 Hz. based upon user input. 11. The system of claim 1, wherein the power conversion stage controls the frequency of the AC output voltage when at least the first input voltage is an AC voltage in the range of approximately 50 to 800 Hz. 12. The system of claim 1, wherein at least one of the power sources comprises a three-phase AC input voltage source. 13. The system of claim 1, wherein the circuitry for combining at least the isolated voltages comprises an isolation transformer. 14. A system for electrical power conversion, the system comprising: a first DC rectification stage which receives a first AC input having first voltage, first frequency, first phase characteristics, first load level and first power level and providing a first DC voltage as an output thereof;a second DC rectification stage receiving a second AC input having second voltage, second frequency, second phase characteristics second load level and second power level and providing a second DC voltage as an output thereof; anda power conversion stage receiving each of the DC outputs and generating at least one DC output to one or more output terminals at a configured voltage, frequency and phase, wherein the power conversion stage further converts the first input from the first power source and the second input from the second power source into the at least one DC input in proportion to a load level and a power level of the first power source and the second power source, wherein the power conversion stage further comprises: first and second voltage inverters receiving the first and second DC voltages, respectively, and providing first and second AC voltages at an intermediate stage to associated isolation transformers;a final DC rectification stage coupled to outputs of the associated isolation transformers receiving isolated first and second intermediate AC voltages and to provide providing at least a final DC voltage; andan output voltage inverter stage which converts the final DC voltage to one or more output AC voltages at an output frequency having one or more phases. 15. A method of power conversion, comprising: receiving a plurality of inputs, each of the plurality of inputs from one of two or more disparate power sources, a first of the two or more disparate power sources having a first load and a first power level associated therewith and a second of the two or more disparate power sources having a second load and a second power level associated therewith;providing a first DC output for each of the plurality of inputs; andconverting the first DC output from the first power source and the second DC output from the second power source into the at least one DC output in proportion to a load level and a power level of the first power source and the second power source, the at least one DC output at a configured voltage, frequency and phase, wherein the step of converting further includes providing an AC output at an output frequency different from frequencies of the power sources. 16. The method of claim 15, wherein the step of converting further includes: selectively switching responsive to switching control signals to generate the at least one DC output from the first input from the first power source and the second input from the second power source in proportion to the load level and the power level of the first power source and the second power source; andgenerating the switching control signals responsive to the load level and the power level of each of the first power source and the second power source. 17. The method of claim 15, wherein the step of converting further includes: producing an isolated voltage responsive to each of the DC outputs; andcombining at least the isolated voltages; andproviding the at least one DC output to one or more associated output terminals. 18. The method of claim 15, wherein the step of converting further includes providing two AC output voltages having different phase characteristics from each other. 19. The method of claim 15, wherein the first power source is a single phase AC voltage source and the second power source is a three-phase AC voltage source. 20. The method of claim 15, wherein the first power source is a DC voltage source and the second power source is an AC voltage source. 21. A system capable of combining electrical power from two or more disparate power sources, the system comprising: a first stage configured to receive a plurality of inputs, each of the plurality of inputs from one of the two or more disparate power sources, a first of the two or more disparate power sources having a first load and a first power level associated therewith and a second of the two or more disparate power sources having a second load and a second power level associated therewith, the first stage providing a first DC output for each of the plurality of inputs;a power conversion stage receiving each of the first DC outputs and generating at least one DC output to one or more output terminals at a configured voltage, frequency and phase, wherein the power conversion stage further converts the first DC output from the first power source and the first DC output from the second power source into the at least one DC output in proportion to a load level and a power level of the first power source and the second power source, wherein the power conversion stage further includes a DC-AC inverter. 22. A system capable of combining electrical power from two or more disparate power sources, the system comprising: a first stage configured to receive a plurality of inputs, each of the plurality of inputs from one of the two or more disparate power sources, a first of the two or more disparate power sources having a first load and a first power level associated therewith and a second of the two or more disparate power sources having a second load and a second power level associated therewith, the first stage providing a first DC output for each of the plurality of inputs;a power conversion stage receiving each of the first DC outputs and generating at least one DC output to one or more output terminals at a configured voltage, frequency and phase, wherein the power conversion stage further converts the first DC output from the first power source and the first DC output from the second power source into the at least one DC output in proportion to a load level and a power level of the first power source and the second power source, wherein the power conversion stage further provides two AC output voltages having different phase characteristics from each other. 23. A method of power conversion, comprising: receiving a plurality of inputs, each of the plurality of inputs from one of two or more disparate power sources, a first of the two or more disparate power sources having a first load and a first power level associated therewith and a second of the two or more disparate power sources having a second load and a second power level associated therewith;providing a first DC output for each of the plurality of inputs; andconverting the first DC output from the first power source and the second DC output from the second power source into the at least one DC output in proportion to a load level and a power level of the first power source and the second power source, the at least one DC output at a configured voltage, frequency and phase, wherein the step of converting further includes providing two AC output voltages having different phase characteristics from each other.
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