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煤炭资源在采出的过程中，必然有大量的瓦斯涌出，随着瓦斯涌出量的不断增加，必然导致出现瓦斯积聚的问题。煤矿主通风机作为煤矿瓦斯通风的主要设备，其工作质效直接关系到煤矿通风效果。本文将煤矿主通风机变频控制系统的优化作为研究对象，从煤矿主通风机变频控制系统优化的原则分析入手，研究了煤矿主通风机变频控制系统工作原理，并针对性提出了煤矿主通风机变频控制系统优化措施。“,”In the process of mining coal resources, a large amount of gas will inevitably be emitted. With thecontinuous increase of gas emission, it will inevitably lead to the problem of gas accumulation. As the main equipment of coal mine gas ventilation, the main ventilation fan of coal mine is directly related to the ventilation effect of coal mine. This paper takes the optimization of the coal mine main fan frequency conversion control system as the research object. Starting from the principle analysis of the coal mine main fan frequency conversion control system optimization principle, the working principle of the coal mine main fan frequency conversion control system is studied, and the coal mine main fan is proposed. Optimization measures for the frequency conversion control system.