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国内现有的煤矿用带式输送机的交流软启动器都是开环系统,无法兼顾轻、重载下的启动性能。为此,兖州矿业(集团)有限责任公司研制出了矿用隔爆兼本质安全型带式输送机交流软启动器,采用电流内环和速度外环组成的双闭环控制系统,使控制系统能自动适应现场负载变化的要求。
Existing domestic coal mine belt conveyer AC soft starter are open-loop system, can not take into account light, heavy load start performance. To this end, Yanzhou Mining (Group) Co., Ltd. has developed a flameproof and intrinsically safe belt conveyor AC soft starter, the current inner and outer speed ring composed of double closed-loop control system so that the control system can Automatically adapt to changes in the requirements of the scene.