Magnetic design modeling method of LCLCL resonant converter

A technology of resonant converters and modeling methods, applied in CAD numerical modeling, computer-aided design, design optimization/simulation, etc., can solve problems such as multiple costs and cycles, lack of modeling and analysis methods, and inability to modify

Pending Publication Date: 2021-07-09
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
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Problems solved by technology

[0006] However, at present, there is still a lack of suitable modeling and analysis methods for the magnetic design of LCLCL resonant converters, and usually only MAXWELL simulations can be used to verify whether the parameters are reasonable
Moreover, for planar magnetic components, once the printed board is printed, it cannot be modified, and it will take more cost and cycle to modify it.

Method used

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  • Magnetic design modeling method of LCLCL resonant converter
  • Magnetic design modeling method of LCLCL resonant converter
  • Magnetic design modeling method of LCLCL resonant converter

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Embodiment Construction

[0062] The present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. All technologies realized based on the above contents of the present invention are covered within the scope of protection intended by the present invention.

[0063] different from figure 1 The existing LLC resonant converter topological structure shown, the specific structure of the LCLCL DC converter based on the present invention is:

[0064] The front stage consists of a DC input voltage V in , the post-stage LLC converter includes a switching tube S 1 and switch tube S 2 , freewheeling diode 1, freewheeling diode 2, resonant capacitor C r , Resonant inductance L r , Resonant capacitance C p , Resonant inductance L p , Exciting inductance L m ;

[0065] A...

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Abstract

The invention provides a magnetic design modeling method of an LCLCL resonant converter, which performs special modeling analysis on the LCLCL resonant converter based on a response surface method and a modular interlayer model analysis method, and breaks through the limitation that parameter verification can only be performed through an MAXWELL simulation analysis mode in the prior art, therefore, leakage inductance and winding impedance parameters of the multi-layer winding can be quickly, flexibly and accurately obtained, and compared with the prior art, the method has many unexpected technical effects.

Description

technical field [0001] The invention belongs to the technical field of power converters, and in particular relates to a magnetic design modeling method of an LCLCL resonant converter. Background technique [0002] The LCLCL topology has the following advantages over the LLC topology and other commonly used higher order resonant converters such as CLCL converters: [0003] (1) It has the ability to reduce the average current of the secondary rectifier diode by injecting the third harmonic. In the case of the same load current RMS, the average current can be reduced by 74%. Therefore, the LCLCL resonant topology can improve efficiency. [0004] (2) Compared with the "asymptotic horizontal axis approximation" resonance curve of LLC, the LCLCL converter has better high-frequency frequency sensitivity, and has better adjustment ability to the fluctuation of input voltage and load resistance. It is proved that the LCLCL resonant converter has better robustness. [0005] (3) Co...

Claims

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Application Information

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IPC IPC(8): G06F30/367G06F30/23G06F111/04G06F111/10
CPCG06F30/367G06F30/23G06F2111/04G06F2111/10
Inventor 戴明聪刘博禹林璇季金虎
Owner BEIJING MECHANICAL EQUIP INST
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