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Non-contact multiple input voltage source type resonant converter

A resonant converter, voltage source type technology, applied in the direction of conversion equipment that converts irreversible AC power input into DC power output, irreversible DC power input into AC power output, and can be converted into DC without intermediate conversion, etc. , can solve the problem that the multi-input converter cannot achieve time-sharing/simultaneous multi-mode reliable operation, etc., to achieve the effect of being conducive to safe and reliable operation, reducing voltage stress, and reliable non-contact energy conversion

Active Publication Date: 2010-03-03
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiency that the existing isolated multi-input converter cannot realize time-sharing / simultaneous multi-mode reliable operation, and combine the requirements of high safety, high reliability and convenient use of the renewable energy power supply system to propose an applicable A non-contact multi-input voltage source resonant converter for renewable energy power supply systems, realizing time-sharing / simultaneous reliable and stable power supply from multiple input sources, and ensuring the safety and convenience of use

Method used

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  • Non-contact multiple input voltage source type resonant converter
  • Non-contact multiple input voltage source type resonant converter

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Embodiment Construction

[0018] Figure 1 shows a structural block diagram of a non-contact multi-input voltage source type resonant converter, which includes a primary circuit, a multi-winding non-contact transformer and a secondary circuit.

[0019] As shown in Figure 2, it is assumed that the number of turns of the n primary windings and secondary windings of the multi-winding non-contact transformer is equal, that is, n p1 =n p2 …n pn =n s , due to the tight coupling of n primary windings, the T-type equivalent circuit of the multi-winding non-contact transformer can be obtained by converting the secondary side of the transformer to the primary side, where L pσ , L sσ , L m They are the primary leakage inductance, secondary leakage inductance and magnetizing inductance of the multi-winding non-contact transformer equivalent model. Moreover, due to the inherent current source characteristics of the voltage source resonant converter, it is equivalent to a current source 7, and multiple current s...

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Abstract

The invention relates to a non-contact multiple input voltage source type resonant converter, belonging to the electric energy transformation field. The resonant converter comprises a primary side circuit, a multiple winding non-contact transformer (4) and a secondary side circuit; wherein the primary side circuit is composed of n energy input branches, each branch is formed by sequentially connecting an input source (1), a voltage source type contravariant bridge (2) and a primary resonant network (3) on one primary side winding of the multiple winding non-contact transformer (4) in series; nprimary side windings of the multiple winding non-contact transformer (4) are tightly coupled, the primary side and the secondary side are relatively movable; the secondary side circuit is formed bysequentially connecting a secondary side resonant network (5) and a rectifying and filtering circuit (6) in series; and in the n energy input branches, the primary side resonant networks of at least n-1 branches includes a series inductance. Inherent current source characteristic of the voltage source type resonant converter and tightly coupled primary side multiple winding realize multiple inputsource time-sharing / simultaneous multiple mode power supply; and non-contact power supply ensures safety and convenience.

Description

technical field [0001] The invention relates to a non-contact multi-input voltage source type resonant converter suitable for a renewable energy power supply system, belonging to the field of electric energy conversion. Background technique [0002] With the depletion of global chemical energy, renewable energy (including wind energy, solar energy, geothermal energy and ocean energy, etc.) has received more and more attention. Compared with fossil energy, renewable energy has the advantages of large resource potential, low environmental pollution and sustainable utilization, and has become an important energy source that is conducive to the harmonious development of man and nature. However, all forms of renewable energy power generation have shortcomings such as unstable power supply, discontinuity, and changes with climatic conditions, so it is necessary to use multiple energy sources for joint power supply. In order to simplify the circuit structure and reduce the energy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48H02M5/10H02M7/04
CPCY02P80/10
Inventor 陈乾宏曹玲玲张巍
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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