A Global Optimization Method of Relay Parameters Based on k-means Radial Basis Function

A technology of global optimization and basis functions, which is applied in the directions of instruments, design optimization/simulation, and special data processing applications, etc., can solve problems such as the inability to eliminate the robustness of the scheme, low optimization accuracy, and the inability to determine the global optimal solution, etc., to reduce The number of modeling parameters and the effect of improving modeling accuracy

Active Publication Date: 2021-03-12
HARBIN INST OF TECH
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the current parameter design method of electrical appliances cannot determine the global optimal solution, cannot eliminate the interaction of factors affecting the robustness of the scheme, and the complexity of the modeling process leads to low optimization accuracy, and provides a method based on the K-means path A Global Optimization Method of Relay Parameters Based on Basis Functions

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  • A Global Optimization Method of Relay Parameters Based on k-means Radial Basis Function
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  • A Global Optimization Method of Relay Parameters Based on k-means Radial Basis Function

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specific Embodiment approach 1

[0021] Specific embodiment one: what this embodiment records is a kind of relay parameter global optimization method based on K-means radial basis function, and described method comprises the following steps:

[0022] Step 1: Determine the input parameters and uncertainty factors according to the research object and optimization goal, and carry out the orthogonal test design of the inner and outer surfaces; among them, the input parameters are arranged in the inner table, and the uncertainty factors are arranged in the outer table, according to the number of input parameters and uncertain factors and the number of levels respectively select the inner and outer orthogonal tables and determine the test plan; the research object is a relay, and the optimization goal is determined according to the actual situation, which can be the armature pull-in speed, the magnetic retention force, etc.; the input parameters can affect the optimization The size of each key part of the target rel...

specific Embodiment approach 2

[0028] Specific embodiment two: a kind of relay parameter global optimization method based on K-means radial basis function described in specific embodiment one, in step 3, the described parameter decoupling is specifically: select from input parameter For the non-repetitive combination (X, Y) of any two parameters, first calculate the variation Δx and Δy of the corresponding output characteristics when the parameters X and Y are changed separately, and then calculate the corresponding output characteristics when the combination of (X, Y) changes at the same time For the variation Δxy, if the parameter X and the parameter Y are completely independent, the mathematical relationship of Δxy=Δx+Δy should be satisfied, otherwise, it means that there is an interaction between the parameter X and the parameter Y;

[0029] Define the interaction factor γ to reflect the degree of interaction between parameters X and Y, and use the following formula to determine the interaction between p...

specific Embodiment approach 3

[0032] Specific embodiment three: a kind of relay parameter global optimization method based on K-means radial basis function described in specific embodiment one, in step five, described adopting linear regression method to establish the relationship between the adjustment factor and the output characteristic The polynomial function is specifically: after the optimization scheme of the stability factor is determined, the output characteristics will deviate with the change of the parameter value, first calculate the offset ΔF of the output characteristics s , and then jointly adjust the factor polynomial F a , to establish the offset compensation target H 2 , as shown in the following formula,

[0033]

[0034] Since the adjustment factor and the stability factor are independent of each other, the output offset can be quantitatively compensated without affecting the robustness of the scheme, and finally the adjustment factor X a design plan.

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Abstract

A global optimization method for relay parameters based on K-means radial basis function belongs to the technical field of relay product design. The purpose of the invention is to solve the problem that the current parameter design method cannot determine the global optimal solution and cannot eliminate the interaction of factors affecting the robustness of the scheme. The method is as follows: 1. Determine the controllable factors, error factors and orthogonal test plan; 2. Conduct significance analysis of signal-to-noise ratio and sensitivity to determine the stable factors; 3. Conduct interactive analysis to determine the adjustment factors; 4. Establish stable factors The K-means radial basis function model and optimization objective function are used to determine the optimal solution of the stability factor; 5. The polynomial model of the adjustment factor and the offset compensation objective function are established to determine the optimal solution of the adjustment factor. The invention determines the adjustment factors by decoupling the parameters, and then uses the adjustment factors to compensate the deviation of the output characteristics, thereby realizing the adjustment of the output characteristics to the target value without affecting the robustness of the stability factors.

Description

technical field [0001] The invention belongs to the technical field of relay product design, and in particular relates to a global optimization method of relay parameters based on K-means radial basis function. Background technique [0002] Parameter design is an important link in the design process of relay products. It not only directly determines whether the output characteristics of the product can meet the design requirements, but also directly affects the resistance of the product design scheme to external interference, internal interference, manufacturing dispersion and other uncertain factors. Capability, that is, robustness. Therefore, the adoption of robust parameter design method is of great significance to improve the performance stability and quality consistency of relay products. [0003] The key to robust parameter design is to use the nonlinear nature between input parameters and output characteristics to effectively improve the ability of the design scheme ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06K9/62
CPCG06F30/20G06F18/23213
Inventor 翟国富吴岳崔斌
Owner HARBIN INST OF TECH
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