Research on Synchronous Control System of Multi-Motor Driven Scraper Conveyor

Abstract

In the domain of conventional dual or triple-drive scraper conveyors, the bedrock of coal transportation lies in the utilization of motor-driven chains located at both the head and tail ends. This operational framework frequently necessitates recurrent, high-load initiations. Consequently, these scraper conveyors are prone to a spectrum of challenges, encompassing power inadequacies, vexing initiation procedures, motor overheating incidents, and chain integrity breaches. To address these formidable impediments, this article introduces an innovative paradigm: the uniformly distributed multi-motor-driven scraper conveyor. Within this context, a comprehensive array of control models is conceived, featuring both a direct-drive control model employing permanent magnet motors and a synchronous control model for the orchestration of multiple motors. Rigorous theoretical analyses and simulations, executed using the MATLAB/Simulink platform, illuminate a compelling revelation: when matched for equivalent transport capacities, the power prerequisites of the uniformly distributed three-motor-driven scraper conveyor experience a marked reduction. Extending this discourse, the article proceeds to delineate multi-motor control paradigms, spanning the domains of parallel control, master-slave control, and deviation-coupled control. Subsequently, a meticulous comparative analysis unfolds, elucidating the respective merits and demerits of these three synchronous control methodologies, all rooted in the crucible of simulation-derived results.