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Power switching circuit and operation method thereof and uninterruptible power supply system

A technology for exchanging circuits and electric power, which is applied in high-efficiency power electronic conversion, circuit devices, emergency power supply arrangements, etc., and can solve problems such as reduced efficiency, increased cost, and reduced output power

Pending Publication Date: 2020-12-08
施耐德电气IT 公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of power inverters in high-speed switching applications also reduces efficiency because the output power of such power inverters drops rapidly at high switching speeds
Additionally, the use of high voltage switches in power inverter circuits results in increased cost

Method used

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  • Power switching circuit and operation method thereof and uninterruptible power supply system
  • Power switching circuit and operation method thereof and uninterruptible power supply system
  • Power switching circuit and operation method thereof and uninterruptible power supply system

Examples

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Embodiment Construction

[0042] Examples of the methods and systems discussed herein are not limited in application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The methods and systems can be implemented in other embodiments and of being practiced or being carried out in various ways. The numerous examples of specific implementations provided herein are for illustrative purposes only and are not intended to be limiting. In particular, acts, components, elements and features discussed in relation to any one or more examples are not intended to be excluded from a similar role in any other example.

[0043] Also, the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. Any reference to examples, embodiments, components, elements, or acts of the systems and methods referred to herein in the singular may also encompass embodiments including aplurality, A...

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PUM

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Abstract

The present invention provides a power switching circuit and operation method thereof and an uninterruptible power supply system, which is used for providing effective power switching. The power switching circuit including: a first DC / DC converter having a first input configured to receive a first input DC voltage; a second DC / DC converter having a first input configured to receive a second inputDC voltage; a DC / AC inverter having a first input coupled to the output of the first DC / DC converter and a second input coupled to the output of the second DC / DC converter, the DC / AC inverter including n (n>2) switching legs; and at least one controller coupled to the first DC / DC converter, the second DC / DC converter, and the DC / AC inverter, the at least one controller configured to operate the DC / AC inverter to provide n AC signals to at least one load coupled to the DC / AC inverter by operating two of the n switching legs in a static state and n-2 of the n switching legs in a transition state.

Description

technical field [0001] The present invention generally relates to systems and methods for providing efficient power conversion for medium and high voltage applications. Background technique [0002] Power inverters are used to convert direct current (DC) power to alternating current (AC) power and are generally most efficient in low voltage applications because switching losses in medium and high voltage applications can Relatively high. The use of power inverters in high-speed switching applications also reduces efficiency because the output power of such power inverters drops rapidly at high switching speeds. Additionally, the use of high voltage switches in power inverter circuits results in increased cost. Contents of the invention [0003] At least one aspect of the present disclosure is directed to a power switching circuit comprising: a first DC / DC converter having a first input configured to receive a first input DC voltage, and an output, configured to provide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48H02M7/483
CPCH02M7/48H02M7/483H02M1/0067H02M1/0083H02M7/487H02M7/49Y02B70/10H02M1/0054H02M1/0074H02M1/008H02M1/0095H02M7/4837H02J9/062H02M3/158H02M7/53871
Inventor 凯帕·奥德里奥拉·萨加斯塔蒂埃里·梅纳德阿兰·拉卡诺
Owner 施耐德电气IT 公司
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