Large-capacity medium-voltage high-frequency transformer design method

A high-frequency transformer and design method technology, applied in the field of power electronics, can solve the problems of low thermal conductivity and small heat dissipation area, and achieve the effect of fast iteration speed, high calculation accuracy, overcoming empirical parameters and inability to calculate in full frequency domain

Pending Publication Date: 2021-10-08
ZHEJIANG UNIV
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Problems solved by technology

However, the thermal conductivity of general insulating materials is low, and under the compact design of high power density, the

Method used

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  • Large-capacity medium-voltage high-frequency transformer design method
  • Large-capacity medium-voltage high-frequency transformer design method
  • Large-capacity medium-voltage high-frequency transformer design method

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Embodiment Construction

[0029] In order to describe the present invention more specifically, the technical solutions and related principles of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as figure 1 As shown, the large-capacity medium-voltage high-frequency transformer design method in this embodiment includes input of transformer design requirements, determination of material parameters and iterative step size, iterative calculation, Pareto plane drawing of calculation results and result optimization, and limited selection of optimal results Element verification and result output; the large capacity described in this embodiment refers to the power level above kilowatts, the medium voltage refers to the isolation voltage of the transformer above kilovolts, and the high frequency refers to the operating frequency of the transformer above 500 Hz.

[0031] The specific steps are as follows:

[0032] S1 tra...

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Abstract

The invention discloses a large-capacity medium-voltage high-frequency transformer design method. The method comprises the steps of transformer design requirement input, material parameter and iteration step length determination, iterative calculation, Pareto plane drawing of calculation results, result optimization, finite element verification of optimization results and result output. According to the method, the design process is fully numeralized, the model precision is ensured, the design time consumption is greatly reduced, traversal calculation of a full design space can be realized, and finally, rapid optimization is realized by combining a multi-objective optimization genetic algorithm. The method provided by the invention greatly simplifies the design process of the transformer, and is verified by a specific embodiment.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and in particular relates to a method for designing a large-capacity medium-voltage and high-frequency transformer. Background technique [0002] As one of the key parts of the power conversion device, the intermediate frequency transformer is mainly responsible for the voltage ratio and voltage isolation of the system. Although traditional power frequency medium voltage transformers have very mature design methods, the design of transformers targeting high power density at medium frequency is still extremely challenging. First of all, under medium voltage, a fairly thick insulating material layer must be selected to ensure the insulation requirements between the medium voltage winding and the low voltage winding and the magnetic core. At the same time, the insulating material also needs to bear the heat dissipation of the winding and the magnetic core. However, the thermal conductivit...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F111/06G06F111/10
CPCG06F30/23G06F2111/06G06F2111/10
Inventor 李武华李楚杉卢睿盛景向鑫何湘宁
Owner ZHEJIANG UNIV
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