Power supply system and method based on power electronic transformer
A technology of power electronics and power supply system, which is applied in the direction of AC network with the same frequency from different sources, and can solve the problems of fixed power supply mode and poor economy
Pending Publication Date: 2021-05-18
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology
However, in the prior art, when the power electronic transformer is used for power supply, the power supply method is relatively fixed, and the economy is poor.
Method used
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[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0041] figure 1 A schematic structural diagram of a power supply system based on a power electronic transformer provided by an embodiment of the present invention, refer to figure 1 The power supply system based on the power electronic transformer provided by the embodiment of the present invention includes a power electronic transformer 10, a power measurement module 50, a control module 60 and a plurality of switch units 30;
[0042] The power electronic transformer 10 includes a plurality of power supply ports...
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The embodiment of the invention discloses a power supply system and method based on a power electronic transformer. The system comprises the power electronic transformer, a power measurement module, a control module and a plurality of switch units. The power electronic transformer comprises a plurality of power supply ports, each power supply port is connected with a power supply, at least one power supply port is connected with a switch unit in a one-to-one correspondence manner, and the switch unit is connected to a load; the power measurement module is connected with a plurality of power supply ports of the power electronic transformer, and the power measurement module is used for measuring power and conversion efficiency of the plurality of power supply ports of the power electronic transformer; the control module is connected with the power electronic transformer, the power measurement module and the switch units, and the control module is used for conducting the switch unit corresponding to the power supply port with the maximum conversion efficiency according to the conversion efficiency of the power electronic transformer. Through the technical scheme provided by the embodiment of the invention, the optimal power supply mode can be selected to provide power for the load.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of power supply and distribution, and in particular to a power supply system and method based on a power electronic transformer. Background technique [0002] With the rapid development of power electronics technology, power electronic transformers (Power Electronic Transformer, PET) have attracted more and more attention from all walks of life. Power electronic transformers have the characteristics of small size, high safety and high controllability, and have broad application prospects. . [0003] Compared with the characteristic that traditional transformers can only output alternating current, power electronic transformers can output both alternating current and direct current, and can also access renewable energy. However, in the prior art, when the power electronic transformer is used for power supply, the power supply method is relatively fixed, and the economy is poor. Conten...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 郑风雷陈盛燃何建宗夏云峰黄匀飞李东晖何文志钟荣富
Owner GUANGDONG POWER GRID CO LTD