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马兰矿针对副井提升机电控系统复杂、功率低、系统发热量大、故障率高等问题，对原电控系统进行优化改造，设计了副井提升机双独立电控系统 , 采用“双三电平变频器 +PLC 控制器”为核心的控制系统，并详细介绍两套双三电平变频系统、两套信号系统、两套闸控系统的设计方案 , 有效提高了提升机电控系统的高效稳定运行 . 现场实践证明 , 该方案具有较高的应用与推广价值。“,”Aiming at the problems of complex electric control system, low power, high calorific value and high failure rate of auxiliary shaft hoist in Malan mine, the original electric control system was optimized and reformed, and the double independent electric control system of auxiliary shaft hoist was designed. The control system with “double three-level inverter + PLC controller” as the core was adopted, and two sets of double three-level frequency conversion system, two sets of signal system, two sets of automatic control system and two sets of automatic control system were introduced in detail Two sets of design schemes of gate control system effectively improve the efficient and stable operation of the hoist electric control system. The field practice shows that the scheme has high application and promotion value.