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Dynamic coupling type resonant power system

A power system, dynamic coupling technology, applied in control/regulation systems, output power conversion devices, DC power input into DC power output, etc., can solve problems such as difficult soft switching, and achieve the effect of regulating output voltage or current

Inactive Publication Date: 2021-08-06
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dynamic coupling resonant power system in order to overcome the defect that the resonant converter in the prior art is difficult to fully realize soft switching in a wide voltage range

Method used

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  • Dynamic coupling type resonant power system
  • Dynamic coupling type resonant power system
  • Dynamic coupling type resonant power system

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Embodiment

[0042] Such as figure 2 As shown, a dynamically coupled resonant power system can enhance the ability of voltage or current regulation, dynamically optimize the characteristics of resonant soft switching, and optimize the resonant characteristics of the wireless power transmission network, specifically including sequentially connected power supply units , a power conversion unit, a composite resonant network, a composite coil unit, and a secondary rectifier unit. The composite resonant network specifically includes multiple composite resonant groups formed by resonant coupling between one or more power conversion units. The resonant power system passes through the power conversion unit Adjustment of resonance characteristics can be realized by timing adjustment of control signals, cooperation of multiple power supply units or dynamic adjustment of composite resonance group.

[0043] In this embodiment, it includes N+1 (N≧1) switch groups participating in composite resonance, ...

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Abstract

The invention relates to a dynamic coupling type resonant power system, which comprises a power supply unit, a power conversion unit, a composite resonant network, a composite coil unit and a secondary rectification unit connected in sequence. The composite resonant network specifically comprises a plurality of composite resonant groups formed by resonant coupling among one or more power conversion units; according to the resonant power system, the power conversion unit is used for controlling time sequence adjustment of signals, matching of a plurality of power supply units or dynamic adjustment of a composite resonant group so as to realize adjustment of resonance characteristics. Compared with the prior art, the system has the advantages that the voltage or current adjusting capacity is enhanced, the resonance soft switching characteristic is dynamically optimized, and the resonance characteristic of the wireless power transmission network is optimized.

Description

technical field [0001] The invention relates to the technical field of electric energy transmission, in particular to a dynamic coupling resonant power system. Background technique [0002] The optimization of the characteristics of the resonant network is of great significance to the high-density integration of resonant power systems and the improvement of the efficiency of wireless power transmission. As one of the application scenarios, in the field of wireless charging, a certain resonant network is formed between the coils used for wireless power transmission (between the transmitting end and the receiving end), and its resonant state will directly affect the efficiency of energy transmission, so the system may need Add some compensation network to optimize its characteristics. At the same time, in the application scenarios of new energy power generation, higher power density has become an important goal. For isolated DC-DC converters, the most suitable topology is the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02J50/12H02J50/40
CPCH02M3/33507H02M3/33523H02J50/12H02J50/40Y02B70/10
Inventor 钱挺
Owner TONGJI UNIV
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