Journal of Chemistry and Chemical Research

In chemical process control systems, communication links of Distributed Control Systems (DCS) are frequently impacted by complex electromagnetic environments, where interference signals often emerge, leading to reduced control accuracy and operational safety. This study focuses on DCS system communication channels, employing spectral analysis methods to identify interference source characteristics and reveal frequency-domain distribution patterns of various disturbances. Based on these findings, we propose a multi-dimensional anti-interference optimization strategy comprising filter algorithm improvements, adaptive adjustment of communication parameters, and hardware isolation optimization. Experimental results demonstrate that this approach effectively reduces interference intensity while enhancing signal integrity and system stability, providing technical support for ensuring safe and reliable chemical production operations.

Chemical DCS systems; Communication interference; Spectral analysis; Anti-interference optimization