Research on Electromagnetic Compatibility Characteristics and Optimization Strategies of a Lighting System for Underwater Unmanned Operation Robots
SUN Heyuan
WANG Zhirong
HU Peiqiu
YAO Jian
Abstract：This paper systematically studies the electromagnetic compatibility characteristics and optimization methods of underwater unmanned operation robot lighting systems in complex electromagnetic environments to address the interference issues.By analyzing the mechanism of internal interference sources(high-frequency harmonics in the driving circuit,fluctuations in light source current)and external interference sources(electromagnetic characteristics of seawater and electromagnetic fields in marine environments)in the lighting system,combined with the electromagnetic propagation laws of underwater special environments,an electromagnetic compatibility solution that integrates circuit optimization and structural design is proposed.The experiment uses a Silent Switcher topology LED driver circuit,combined with conductive silicone shielding and multi-point grounding technology.Tests in simulated marine environments show that this scheme can reduce the conducted emission of the lighting system by 28 dB in the 30 MHz frequency band and the radiated emission by 35 dB in the 100 MHz frequency band,fully meeting the requirements of GB/T 17626 standards.The research results provide theoretical basis and technical reference for the electromagnetic compatibility design of underwater robot lighting systems.
Keywords：underwater robotslightingelectromagnetic compatibilityshielding technology
Publication Date：2025-10-25
Online Publishing Date：2025-11-10(First online date of this platform, not the publication date of the document)
Pages：5( 19-23 )