IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
UP-0440219
(2006-05-23)
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등록번호 |
US-7656059
(2010-03-31)
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발명자
/ 주소 |
- Wang, Kon-King M.
- Harmon, Kent M.
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출원인 / 주소 |
- Continental Automotive Systems US, Inc.
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인용정보 |
피인용 횟수 :
10 인용 특허 :
17 |
초록
▼
A system and method for transferring power from power sources to an AC power system are disclosed. Briefly described, one embodiment electrically couples an external AC power source to a first input power control (IPC) module that is rated at a first AC input power capacity and that is rated at a fi
A system and method for transferring power from power sources to an AC power system are disclosed. Briefly described, one embodiment electrically couples an external AC power source to a first input power control (IPC) module that is rated at a first AC input power capacity and that is rated at a first direct current (DC) input power capacity, operates the first IPC module up to the first AC input power capacity in response to receiving AC power from an external AC power source, electrically couples an external DC power source to a second IPC module that is rated at a second AC input power capacity and that is rated at a second DC input power capacity, and operates the second IPC module up to the second DC input power capacity in response to receiving DC power from an external DC power source.
대표청구항
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The invention claimed is: 1. A variable capacity grid system for transmitting power between at least one external power source and an alternating current (AC) power system, comprising: a first input power control (IPC) module, comprising: a first primary converter module operable to convert power r
The invention claimed is: 1. A variable capacity grid system for transmitting power between at least one external power source and an alternating current (AC) power system, comprising: a first input power control (IPC) module, comprising: a first primary converter module operable to convert power received from a first external power source into a first amount of direct current (DC) power; and a first secondary converter module electrically coupled between the first primary converter module and the AC power system, operable to convert the first amount of DC power into a first amount of AC power, and further operable to transmit the first amount of AC power to the AC power system; and a second IPC module, comprising: a second primary converter module operable to convert power received from a second external power source into a second amount of DC power; and a second secondary converter module electrically coupled between the second primary converter module and the AC power system, operable to convert the second amount of DC power into a second amount of AC power, and further operable to transmit the second amount of AC power to the AC power system. 2. The variable capacity grid system of claim 1, further comprising: a controller operable to control the first primary converter module and the first secondary converter module so that the first amount of AC power is transferred through the first IPC module, operable to control the second primary converter module and the second secondary converter module so that the second amount of AC power is transferred through the second IPC module, wherein a sum of the first amount and the second amount of AC power equals a load drawn by the AC power system from the variable capacity grid system. 3. The variable capacity grid system of claim 1, further comprising: a first controller communicatively coupled to the first IPC module and operable to control the first primary converter module and the first secondary converter module so that the first amount of AC power is transferred through the first IPC module; and a second controller communicatively coupled to the second IPC module and operable to control the second primary converter module and the second secondary converter module so that the second amount of AC power is transferred through the second IPC module. 4. The variable capacity grid system of claim 1, wherein a first one of the primary converter modules is operable to convert power received from a first type of external power source, and wherein a second one of the primary converter modules is operable to convert power received from a second type of external power source. 5. The variable capacity grid system of claim 4, wherein one electrical characteristic of the generated power from the first type of external power source is different from a corresponding electrical characteristic of the second type of external power source. 6. The variable capacity grid system of claim 4 wherein the first one of the primary converter modules is operable to convert AC power at a 60 hertz (Hz) frequency received from the first type of external power source, and wherein the second primary converter module is operable to convert the AC power at a 50 Hz frequency received from the second type of external power source. 7. The variable capacity grid system of claim 4 wherein the first primary converter module is operable to convert AC power received from the first type of external power source, and wherein the second primary converter module is operable to convert the DC power from the second type of external power source. 8. The variable capacity grid system of claim 4 wherein the first primary converter module is operable to convert DC power at a first input DC voltage received from the first type of external power source, and wherein the second primary converter module is operable to convert DC power at a second input DC voltage received from the second type of external power source. 9. The variable capacity grid system of claim 1, wherein the first IPC module further comprises: a first DC bus electrically coupled to the first primary converter module and the first secondary converter module; and a third primary converter module electrically coupled to the first DC bus, wherein the third primary converter module is operable to convert power received from a third external power source into a third amount of DC power, such that the first and the third amounts of DC power are transferred to the first secondary converter module that converts the first and the third amounts of DC power into the first amount of AC power. 10. The variable capacity grid system of claim 9, wherein the second IPC module further comprises: a second DC bus electrically coupled to the second primary converter module and the second secondary converter module; and a fourth primary converter module electrically coupled to the second DC bus, wherein the fourth primary converter module is operable to convert power received from a fourth external power source into a fourth amount of DC power, such that the second and the fourth amounts of DC power are transferred to the second secondary converter module that converts the second and the fourth amounts of DC power into the second amount of AC power. 11. The variable capacity grid system of claim 1 further comprising: a third IPC module, comprising: a third primary converter module operable to convert power received from a third external power source into a third amount of DC power; and a third secondary converter module electrically coupled between the third primary converter module and the AC power system, operable to convert the third amount of DC power into a third amount of AC power, and further operable to transmit the third amount of AC power to the AC power system. 12. The variable capacity grid system of claim 1 further comprising: a transport member, wherein the first and the second IPC modules are physically coupled to the transport member such that the first and the second IPC modules are transportable. 13. A micro grid for transmitting power between at least one external power source and an alternating current (AC) power system, comprising: at least two co-located input power conversion (IPC) modules, each IPC module comprising: a direct current (DC) bus that operates at a nominal DC voltage; a first converter coupled to the DC bus and operable to receive power from a first external power source, wherein the first converter converts received power to DC power at the nominal DC voltage; a second converter coupled to the DC bus and operable to receive power from a second external power source, wherein the second converter converts received power to DC power at the nominal DC voltage; and an output power converter coupled between the DC bus and the AC power system that converts DC power received from the first converter and the second converter into output AC power at a nominal AC voltage of the AC power system, wherein each of the at least two co-located IPC modules receives power from one of the first external power source and the second external power source such that only one of the first converter and the second converter receive power. 14. The micro grid of claim 13, further comprising: a transport member, wherein the at least two co-located IPC modules are physically coupled to the transport member such that the first and the second IPC modules are transportable. 15. The micro grid of claim 12 wherein the first converter is operable to receive AC power from an external AC power source at an AC source voltage. 16. The micro grid of claim 13 wherein the second converter is operable to receive DC power from an external DC power source at a DC source voltage. 17. The micro grid of claim 16 wherein the DC source voltage is different from the nominal DC voltage. 18. The micro grid of claim 13 wherein the output power converter is operable to output the AC power at a nominal AC frequency, and wherein a source frequency of AC power received from an external AC power source is different from the nominal AC frequency. 19. The micro grid of claim 13 wherein the first converter has a capacity rating corresponding to a maximum amount of power that the first converter is capable of transferring to the DC bus, wherein at least two first converters of two corresponding IPC modules are electrically coupled to a single external power source that has an output capacity greater than the capacity rating of the first converters, and wherein the output capacity of the single external power source is less than a sum of the capacity ratings of the two first converters. 20. The micro grid of claim 13, further comprising: a first IPC module coupled to the AC power system; and a second IPC module coupled to the AC power system, wherein after a contingency in the micro grid, at least one of the IPC modules remain operational to transfer power to the AC power system. 21. The micro grid of claim 13 wherein at least one of the IPC modules further comprises: a controller controllably coupled to at least the output power converter so that at least one electrical characteristic of the output AC power is controlled. 22. The micro grid of claim 21 wherein, upon determination of a contingency at the first external power source, the controller is operable to electrically isolate the first external power source from the AC power system by prohibiting operation of at least the first converter that is operable to receive power from the first external power source. 23. The micro grid of claim 22 wherein the controller, upon determination of the contingency at the first external power source, electrically isolates the first external power source from the second external power source by prohibiting operation of the first converter. 24. The micro grid of claim 23 wherein the second converter continues to convert power received from the second external power source. 25. The micro grid of claim 13 wherein a first IPC module is rated to at least a first power transfer capacity, wherein a second IPC module is rated to at least a second power transfer capacity, and wherein a capacity of the micro grid is at least equal to a sum of the first power transfer capacity and the second power transfer capacity. 26. The micro grid of claim 25, further comprising: a plurality of additional IPC modules each rated to at least a rated power transfer capacity, wherein the capacity of the micro grid is at least equal to the sum of the first power transfer capacity, the second power transfer capacity, and the rated power transfer capacities of the additional IPC modules. 27. A method for transmitting power between at least one external power source and an alternating current (AC) power system, comprising: electrically coupling an external AC power source to a first input power control (IPC) module that is rated at a first AC input power capacity and that is rated at a first direct current (DC) input power capacity; operating the first IPC module up to the first AC input power capacity in response to receiving AC power from an external AC power source; electrically coupling an external DC power source to a second IPC module that is rated at a second AC input power capacity and that is rated at a second DC input power capacity; and operating the second IPC module up to the second DC input power capacity in response to receiving DC power from an external DC power source. 28. The method of claim 27, further comprising: converting AC power received from the external AC power source into a first amount of DC power using the first IPC module; converting the first amount of DC power into a first amount of AC power using the first IPC module; transferring the first amount of AC power to the AC power system; converting DC power received from the external DC power source into a second amount of DC power using the second IPC module; converting the second amount of DC power into a second amount of AC power using the second IPC module; and transferring the second amount of AC power to the AC power system. 29. The method of claim 27 wherein converting the AC power and the DC power further comprises: converting the AC power received from the external AC power source to DC power at a first nominal DC voltage of the first IPC module; and converting the DC power received from the external DC power source to a second nominal DC voltage of the second IPC module. 30. The method of claim 27, further comprising: electrically coupling the external AC power source to a third IPC module rated at a third AC input power capacity and a third DC input power capacity; and operating the third IPC module up to the third AC input power capacity in response to coupling to the external AC power source, wherein a sum of the first AC input power capacity and the third AC input power capacity is at least equal to the generation capacity of the external AC power source. 31. The method of claim 30, wherein the first AC input power capacity is less than a generation capacity of the external AC power source, and wherein the third AC input power capacity is less than the generation capacity of the external AC power source. 32. The method of claim 27, further comprising: electrically coupling the external DC power source to a third IPC module rated at a third AC input power capacity and a third DC input power capacity; and operating the third IPC module up to the third DC input power capacity in response to coupling to the external DC power source, wherein a sum of the first DC input power capacity and the third DC input power capacity is at least equal to the generation capacity of the external DC power source. 33. The method of claim 30, wherein the first DC input power capacity is less than a generation capacity of the external DC power source, and wherein the third DC input power capacity is less than the generation capacity of the external DC power source. 34. The method of claim 27, further comprising: detecting a contingency in the first IPC module; prohibiting operation of the first IPC module; and maintaining operation of the second IPC module. 35. A system for transmitting power between at least one external power source and an alternating current (AC) power system, comprising: means for converting power received from a first external power source to a first direct current (DC) voltage such that the converted power is received by a first DC bus of a first input power control (IPC) module that is rated at a first AC input power capacity and that is rated at a first DC input power capacity; means for operating the first IPC module up to the first AC input power capacity in response to receiving AC power from an external AC power source; means for operating the first IPC module up to the first DC input power capacity in response to receiving DC power from an external DC power source; means for converting power received from a second external power source to a second DC voltage such that the converted power is received by a second DC bus of a second IPC module that is rated at a second AC input power capacity and that is rated at a second DC input power capacity; means for operating the second IPC module up to the second AC input power capacity in response to receiving AC power from the external AC power source; and means for operating the second IPC module up to the second DC input power capacity in response to receiving DC power from the external DC power source. 36. The method of claim 35, further comprising: means for converting AC power received from the external AC power source into a first amount of DC power using the first IPC module; means for converting the first amount of DC power into a first amount of AC power using the first IPC module; means for transferring the first amount of AC power to the AC power system; means for converting DC power received from the external DC power source into a second amount of DC power using the first IPC module; means for converting the second amount of DC power into a second amount of AC power using the first IPC module; and means for transferring the second amount of AC power to the AC power system.
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