IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0877013
(2007-10-23)
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등록번호 |
US-7615890
(2009-11-23)
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발명자
/ 주소 |
- Masciarelli, Francis J.
- Mutabdzija, Srdan
- Demissie, Eyob
- Ingemi, Michael J.
- Charlantini, Donald Lee
|
출원인 / 주소 |
- American Power Conversion Corporation
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
14 인용 특허 :
72 |
초록
▼
Power supply systems and methods are provided. In one aspect, a power supply system includes a frame, a power input to receive input power from a power source, a power output to provide output power to a load, at least one battery module mounted in the frame and having a battery output that provides
Power supply systems and methods are provided. In one aspect, a power supply system includes a frame, a power input to receive input power from a power source, a power output to provide output power to a load, at least one battery module mounted in the frame and having a battery output that provides battery power, at least one power module mounted in the frame and coupled to the power input to receive the input power, coupled to the battery output to receive the battery power, and coupled to the power output to provide the output power from at least one of the battery power and the input power, a first controller coupled to the at least one power module, and a second controller, substantially similar to the first controller, coupled to the first controller, and coupled to the at least one power module, wherein each of the first controller and the second controller are configured to determine operational parameters of the power supply system and store a first set of parameters determined by the first controller and a second set of parameters determined by the second controller.
대표청구항
▼
What is claimed is: 1. A power supply system comprising: a power input to receive input power from a power source; a power output to provide output power to a load; at least one battery having a battery output that provides battery power; power circuitry coupled to the power input to receive the in
What is claimed is: 1. A power supply system comprising: a power input to receive input power from a power source; a power output to provide output power to a load; at least one battery having a battery output that provides battery power; power circuitry coupled to the power input to receive the input power, coupled to the battery output to receive the battery power, and coupled to the power output to provide the output power from at least one of the battery power and the input power; a first controller coupled to the power circuitry; and a second controller, substantially similar to the first controller, coupled to the first controller, and coupled to the power circuitry; wherein each of the first controller and the second controller is configured to determine operational parameters of the power supply system and store a first set of parameters determined by the first controller and a second set of parameters determined by the second controller. 2. The power supply system of claim 1, wherein the first controller functions as a main controller in the power supply system and controls the output power of the power circuitry, and wherein the first controller and the second controller are configured to allow the second controller to control the output power upon failure of the first controller. 3. The power supply system of claim 1, further comprising a communications bus coupled to the first controller, the second controller to provide duplex communication between the first controller and the second controller; wherein the first controller is configured to function as master of the communications bus and control communications on the bus, and the second controller is configured to function as master of the communications bus upon failure of the first controller. 4. The power supply system of claim 3, wherein each of the first controller and the second controller includes a main processor, an internal communications bus coupled to the communications bus through a relay, and a memory device, coupled to the internal communications bus, that stores operational parameters of the power supply system, and wherein the main processor in the second controller is configured to open the relay in the second controller and send updated operational parameters to the memory device over the internal communications bus. 5. The power supply system of claim 1, wherein the power input is configured to receive input power having a first input phase line, a second input phase line and a neutral input line, wherein the first controller is coupled to the power input and configured to detect an input phase difference between the first input phase line and the second input phase line, and to control the power circuitry to provide output power having a first output phase line, a second output phase line and a neutral output line, with an output phase difference between the first output phase line and the second output phase line substantially equal to the input phase difference. 6. The power supply system of claim 1, further comprising at least one cold start button, and wherein the power supply system is configured to be powered on from battery power with no input power present when the at least one cold start button is activated by a user. 7. The power supply system of claim 6, wherein the power supply system is configured such that activation of the at least one cold start button powers on the power supply system with no input power present, and with substantially zero current from the at least one battery prior to activation of the cold start button. 8. The power supply system of claim 1, wherein the first controller is coupled to the power input and is configured to detect input voltage and input current, and to reduce input current draw of the power supply system upon detection that the input voltage is less than a predetermined threshold. 9. The power supply system of claim 8, wherein the first controller is configured to reduce battery charging current in the power supply system upon detection that the input voltage is less than the predetermined threshold. 10. The power supply system of claim 1, further comprising a four-quadrant power meter coupled to the power output that determines output power of the power supply system. 11. The power supply system of claim 1, wherein the at least one power module includes a two-quadrant power meter that determines output power of the power supply system. 12. The power supply system of claim 1, further comprising an output fuse coupled to the power output, and a detection circuit, coupled to the output fuse and to the first controller that detects a voltage across the output fuse. 13. The power supply system of claim 1, wherein each of the first controller and the second controller is adapted to receive an input signal and based on a state of the input signal, to function as a main controller or a redundant controller. 14. The power supply system of claim 1, wherein the first controller includes a memory device, and is configured to sense an output voltage at the power output, and compare the output voltage with upper and lower threshold levels derived from data contained in the memory device to determine if the output voltage is within a predetermined range. 15. The power supply system of claim 14, wherein the first controller is configured to sense an output current at the power output, compare the output current with a short circuit current value, compare the output voltage with an output short circuit voltage value, and provide indication of a short circuit present at the output if the output current exceeds the short circuit current value and the output voltage is less than the output short circuit voltage value. 16. A power supply system comprising: a power input to receive input power from a power source; a power output to provide output power to a load; at least one battery having a battery output that provides battery power; at least one power circuit coupled to the power input to receive the input power, coupled to the battery output to receive the battery power, and coupled to the power output to provide the output power from at least one of the battery power and the input power; a first controller coupled to the at least one power circuit; and a second controller, substantially similar to the first controller, coupled to the first controller, and coupled to the at least one power circuit; wherein each of the first controller and the second controller includes means for measuring operational parameters of the power supply system and means for storing operational parameters measured by the first controller and measured by the second controller. 17. The power supply system of claim 16, wherein the first controller and the second controller include means for establishing one of the first controller and the second controller as a main controller and for establishing one of the first controller and the second controller as a redundant controller, and means for passing control of the power supply system from the main controller to redundant controller upon failure of the main controller. 18. The power supply system of claim 16, wherein the at least one power circuit a plurality of power circuits. 19. The power supply system of claim 16, further comprising a communications bus for providing duplex communications between the first controller and the second controller and means for establishing the main controller as master of the communications bus and for establishing the redundant controller as master of the communications bus upon failure of the main controller. 20. The power supply system of claim 16, wherein the power input is configured to receive input power having a first input phase line, a second input phase line and a neutral input line, further comprising means for detecting an input phase difference between the first input phase line and the second input phase line, and means for providing output power having a first output phase line, a second output phase line and a neutral output line, with an output phase difference between the first output phase line and the second output phase line substantially equal to the input phase difference. 21. The power supply system of claim 16, further comprising means for starting the power supply system from battery power with no input power present. 22. The power supply system of claim 21, further comprising means for isolating battery voltages during a power down mode with no input power present such that there is substantially zero current from the battery, and wherein the means for starting includes means for starting the power supply system from the power down mode. 23. The power supply system of claim 16, further comprising means for reducing input current draw of the power supply system upon detection that an input voltage of the input power is less than a predetermined threshold. 24. The power supply system of claim 23, wherein the means for reducing input current draw include means for reducing battery charging current. 25. A method of providing redundant control of an uninterruptible power supply having a first controller and a second controller, the method comprising: determining a first set of values corresponding to operational parameters of the uninterruptible power supply using the first controller; determining a second set of values corresponding to the operational parameters of the uninterruptible power supply using the second controller; storing the first set of values and the second set of values in a memory associated with the first controller; storing the first set of values and the second set of values in a memory associated with the second controller; controlling output power of the uninterruptible power supply using the first controller; and upon failure of the first controller, controlling the output power of the uninterruptible power supply using the second controller. 26. The method of claim 25, wherein the uninterruptible power supply includes a communications bus, and the method further comprising: controlling communications on the communications bus using the first controller; and upon failure of the first controller, controlling communications on the communications bus using the second controller. 27. The method of claim 25, wherein the uninterruptible power supply has a power input that is configured to receive input power having a first input phase line, a second input phase line and a neutral input line, and wherein the method further comprises: detecting an input phase difference between the first input phase line and the second input phase line; and providing output power having a first output phase line, a second output phase line and a neutral output line, with an output phase difference between the first output phase line and the second output phase line substantially equal to the input phase difference. 28. The method of claim 25, wherein the uninterruptible power supply further includes at least one cold start button, and wherein the method further comprises controlling the uninterruptible power supply to be powered on from battery power with no input power present when the at least one cold start button is activated by a user.
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