Method for conducting compression ratio experiment of space magnetic field of air reactors

Abstract

The invention discloses a method for conducting a compression ratio experiment of a space magnetic field of air reactors. The method comprises the steps that permeability is permeability of vacuum, namely mu=mu0; parameters with a superscript' is physical quantities after conversion is conducted according to compression ratio criteria, a proportionality coefficient is K, each parameter compression ratio criterion meets the following conditions that (1) the length of a measured model is reduced so that the equation l'=K is satisfied; the area is reduced so that the equation A'=K2A can be satisfied, and the volume is reduced so that the equation V'=K3V can be satisfied; (2) the current is reduced so that the equation I'=K2I can be satisfied, the resistance is amplified so that the equation R'=K-1R can be satisfied, and the voltage is reduced so that the equation V'=KV can be satisfied; (3) the magnetic induction intensity is reduced so that the equation B'=KB can be satisfied and the shielding factor SF is directly applied to a compression ratio system; (4) a frequency parameter compression ratio criterion meets the condition that the frequency f is amplified so that the equation f'=K-2f can be satisfied. The air reactors of different ratios are established and analysis calculation, value simulation and experiment measurement are conducted on the surrounding magnetic fields of the air reactors, so that the equivalence property of the compression ratio experiment and the effectiveness of the compression ratio criteria are verified. The method for conducting the compression ratio experiment of the space magnetic field of the air reactors is economical, simple, convenient to use, reliable, accurate and capable of enabling the distribution condition of a large-scale air reactor magnetic field to be obtained in a laboratory.

Description

technical field [0001] The invention relates to a scaled experiment method for the space magnetic field of an air-core reactor. Background technique [0002] At present, in recent years, with the increase of electricity consumption and the rapid development of the power grid, the application of air-core reactors has become increasingly widespread. According to their different uses, air-core reactors can be divided into several types, such as shunt reactors, series reactors, filter reactors, etc. However, the magnetic field of the air-core reactor is seriously divergent and the current flowing through it is relatively large. It is easy to form a strong magnetic field around it, and it becomes the main source of electromagnetic pollution in the substation. It not only poses a potential health threat to nearby residents and staff, but also may It will cause electromagnetic interference to the surrounding electrical equipment and affect its normal operation. The problem of mag...

AI Technical Summary

Problems solved by technology

However, there are few precedents of applying the scaling experiment method to predict the spatial magnetic field of air-core reactors in previous studies, and the scaling criteria for predicting the magnetic field of air-core reactors using the scaling experiment method have not been systematically summarized. The process of the model is usually cumbersome and has large errors, so the scaling experiment method has not yet received enough attention and application

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