The passive interference of high-voltage transmission lines is a bottleneck problem that restricts the large-scale construction of transmission projects and threatens the safe and stable operation of adjacent radio stations. To further promote research in this field

this article elucidates the generation mechanism of passive interference from transmission lines

and provides a research review from following three aspects: theoretical modeling and simulation calculation

interference protection

and experimental testing. Firstly

theoretical modeling and simulation calculation were summarized from five dimensions

namely

mathematical modeling

numerical solution

physical model evolution

fast calculation

and complex background environmental impact.Then

interference protection was summarized from following three aspects: protection distance calculation

resonance characteristic prediction

and mode current suppression. Finally

measurement testing was summarized from two types of testing techniques

namely

scaled model measurement and full-scale measurement. Research has shown that

although a relatively complete theoretical framework has been formed in theoretical modeling and simulation calculation

there are still challenges such as decreased accuracy in high-frequency solutions and lack of dynamic electromagnetic scattering modeling for offshore transmission lines. In terms of interference suppression

the effectiveness of existing active protection technologies is mainly limited to the middle and lower frequency bands

forcing engineering practice to still rely on passive setting of protection spacing. In terms of experimental measurement

although testing capabilities under various environmental conditions are available

key aspects such as improving the fidelity of scaled models and effectively removing background noise in full-scale measurement still need to be improved.