The Gas Frequency Conversion Speed Regulation System Based on Fuzzy Control

Based on analyzing the constant speed of local fan in the excavation roadway, the paper offers a control system based on fuzzy control and SPWM. According to the variable gas concentration, the system controls the speed of local fan intelligently and adjusts the wind volume. The results of MATLAB simulation prove that the method not only realizes the normal ventilation and gas drainage in the excavation roadway, but also makes coal production safe and saves energy.