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A Design Method of Electromagnetic Interference Filter Based on Artificial Neural Network

An artificial neural network and filter design technology, applied in computer-aided design, instrumentation, calculation, etc., can solve the problems of complex structure of electromagnetic interference filter, large frequency range of electromagnetic interference filter, etc., to avoid high-frequency coupling effect construction. The effect of mold, fast and efficient design scheme

Active Publication Date: 2020-08-25
ZHEJIANG UNIV
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Problems solved by technology

[0005] However, due to the complex structure of the actual EMI filter and the large frequency range of the EMI filter, it is difficult to find a suitable resistor-capacitor-inductor network to accurately simulate the external characteristics of the EMI filter. Therefore, it is urgent to study the EMI filter. Rapid Modeling and Rapid Design Methods

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  • A Design Method of Electromagnetic Interference Filter Based on Artificial Neural Network
  • A Design Method of Electromagnetic Interference Filter Based on Artificial Neural Network
  • A Design Method of Electromagnetic Interference Filter Based on Artificial Neural Network

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Embodiment Construction

[0034] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as figure 1 Shown, the present invention is based on the electromagnetic interference filter design method of artificial neural network, comprises following specific steps:

[0036] (1) Determine the topology and structure of the EMI filter, and determine the types of components such as capacitors and inductors that can be selected according to the limiting factors such as power level, space limitation, heat dissipation, and required insertion loss of the power electronic system.

[0037] In this embodiment, the filter is used to suppress the common-mode interference of the DC bus of the electric vehicle motor driver. Due to space constraints, a second-order π-type LC common-mode filter is selected, such as figure 2 As shown, the filter uses...

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Abstract

The invention discloses a method for designing an electromagnetic interference filter based on an artificial neural network. The method can realize rapid modeling of the electromagnetic interference filter, and based on the model, realize rapid design of the electromagnetic interference filter. Compared with the traditional design method, the design method of the present invention uses the artificial neural network to carry out high-frequency modeling of the electromagnetic interference filter. This model can realize fast and accurate modeling of the insertion loss of the filter. Based on this model, the design of the present invention Methods The genetic algorithm is used to calculate the optimal combination of filter components. This method avoids complex modeling of high-frequency coupling effects, and then achieves the optimal design of the electromagnetic interference filter quickly and efficiently.

Description

technical field [0001] The invention belongs to the technical field of power electronics electromagnetic compatibility, and in particular relates to a design method of an electromagnetic interference filter based on an artificial neural network. Background technique [0002] With the development of power electronics technology and semiconductor materials, power electronics devices are widely used in many fields such as modern industry, aerospace, power supply, transportation and so on. However, the high-frequency switching action of the power electronic devices inside the power electronic device will generate strong electromagnetic interference, which in turn leads to serious electromagnetic interference problems. In order to solve these electromagnetic interference problems, electromagnetic interference filters, especially passive electromagnetic interference filters are widely used. Therefore, it is of great significance to study the design method of EMI filter. [0003]...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/373
CPCG06F30/367
Inventor 陈恒林叶世泽
Owner ZHEJIANG UNIV