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Electromagnetic relay quick calculation method based on Kriging model

An electromagnetic relay and fast calculation technology, applied in calculation, instrumentation, electrical digital data processing, etc., can solve problems such as poor timeliness and difficulty in solving model parameters

Inactive Publication Date: 2017-08-04
HARBIN INST OF TECH
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Problems solved by technology

Among the commonly used approximate model building methods, the response surface method and moving least squares method are difficult to accurately solve functions with a large degree of nonlinearity; the radial basis function method based on neural networks is difficult to solve for model parameters, and requires repeated calculation of a large amount of data. The timeliness is poor; the Kriging method is based on the unbiased estimation of the error to determine the model parameters, the basis function can be changed, the use is more flexible, and the solution speed is fast, which is suitable for occasions with a large amount of calculation

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  • Electromagnetic relay quick calculation method based on Kriging model
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  • Electromagnetic relay quick calculation method based on Kriging model

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specific Embodiment approach 1

[0032] Combine below figure 1 Illustrate this embodiment, the fast calculation method of electromagnetic relay based on Kriging model described in this embodiment, it comprises the following steps:

[0033] S1: Determine the key nodes that affect the transient process of the electromagnetic system; construct the functional relationship between the output characteristics of key nodes and other points based on the interpolation idea; establish a custom interpolation function that reflects the relationship between the output characteristics of the electromagnetic relay and the process variables;

[0034] S2: Select the interpolation node according to the position of the inflection point of the suction curve (U i ,α j ); uniformly select several parameter nodes Δx within the tolerance range of the key design parameters of the electromagnetic system k ; Application of finite element method to calculate the key design parameters in (U i ,α j ,Δx k ) under the condition of the o...

specific Embodiment approach 2

[0041] Combine below figure 1 Describe this embodiment, this embodiment will further explain Embodiment 1. In step S1, select the position of each inflection point of the electromagnetic relay suction curve as the key node that affects the transient process of the electromagnetic system; build the output characteristics of key nodes and other point output characteristics based on the interpolation idea The functional relationship; according to the functional relationship between the process variable of the electromagnetic relay and the output characteristic, determine the self-defined interpolation function including the influence coefficient.

[0042] In step S2, the key nodes selected in step S1 (U i ,α j ) as the interpolation node; several parameter nodes Δx are uniformly selected within the tolerance range of the key design parameters of the electromagnetic system k ; Application of finite element method to calculate the key design parameters in (U i ,α j ,Δx k ) con...

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Abstract

The invention aims at providing an electromagnetic relay quick calculation method based on a pseudo model, and belongs to the technical field of relay product performance analysis. The method comprises the steps of firstly based on an interpolation thought, constructing a user-defining function reflecting an electromagnetic relay output characteristic and a process variable as a primary function of the Kriging model; secondly, through a Latin hypercube sampling method, establishing an error function of the Kriging model, and thus constructing an electromagnetic system pseudo model based on a Kriging method; then, based on a deformation energy method, establishing a counterforce characteristic calculation pseudo model; finally, based on a numerical value method, solving a relay dynamic characteristic equation set, and completing quick calculation of electromagnetic relay dynamic characteristics. According to the electromagnetic relay quick calculation method based on the Kriging model, the calculation precision and the calculation speed are both taken into account, and the quick calculation method can be used in the field of analysis of electromagnetic relay structural optimization, stability design and the like.

Description

technical field [0001] The invention relates to the technical field of performance analysis of relay products, in particular to a fast calculation method for electromagnetic relays based on a Kriging model. Background technique [0002] As a basic component that can switch, control, protect, detect and adjust circuits, electromagnetic relays are widely used in industry, aerospace, weaponry and other fields. Applying fast calculation methods to solve its dynamic characteristics is of great significance to the design verification, performance evaluation and product optimization of relays. The main difficulty of the fast calculation method of electromagnetic relay lies in the fast calculation of the electromagnetic system. The calculation of electromagnetic system involves multi-field coupling analysis of electricity, magnetism and force. Traditional analysis methods mainly include finite element method and magnetic circuit method. The finite element method has high calculati...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367G06F2111/10
Inventor 叶雪荣林义刚董宝旭王瑛琪付饶邓杰翟国富
Owner HARBIN INST OF TECH
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