The scheme of a frequency control system in a rotary drill is established by integrating a converter and a programmable logic controller ( PLC ). The principle of speed regulation, characters of speed-up and speed-d...The scheme of a frequency control system in a rotary drill is established by integrating a converter and a programmable logic controller ( PLC ). The principle of speed regulation, characters of speed-up and speed-down, and the mechanical running performance are also analyzed. The result of application indicates that the frequency control system excellently solves the problems of start, stop, and speed regulation of the drill. The equipment maintenance workload and cost are thus reduced.展开更多
文章设计的基于可编程逻辑控制器(Programmable Logic Controller,PLC)的矿井局部通风机变频调速系统,使用基于PLC的3层控制架构,采用比例-积分-微分(Proportional Integral Derivative,PID)控制和模糊控制相结合的复合控制策略,并配备...文章设计的基于可编程逻辑控制器(Programmable Logic Controller,PLC)的矿井局部通风机变频调速系统,使用基于PLC的3层控制架构,采用比例-积分-微分(Proportional Integral Derivative,PID)控制和模糊控制相结合的复合控制策略,并配备完善的安全保护措施,实现了矿井局部通风机的变频调速控制。搭建了实验平台,在不同工况下进行测试,评估该系统的节能效果、动态响应性能、稳定性和可靠性。实验结果表明,与传统定速系统相比,设计的变频调速系统节能效果显著、响应快速、运行稳定可靠。展开更多
文摘The scheme of a frequency control system in a rotary drill is established by integrating a converter and a programmable logic controller ( PLC ). The principle of speed regulation, characters of speed-up and speed-down, and the mechanical running performance are also analyzed. The result of application indicates that the frequency control system excellently solves the problems of start, stop, and speed regulation of the drill. The equipment maintenance workload and cost are thus reduced.
文摘文章设计的基于可编程逻辑控制器(Programmable Logic Controller,PLC)的矿井局部通风机变频调速系统,使用基于PLC的3层控制架构,采用比例-积分-微分(Proportional Integral Derivative,PID)控制和模糊控制相结合的复合控制策略,并配备完善的安全保护措施,实现了矿井局部通风机的变频调速控制。搭建了实验平台,在不同工况下进行测试,评估该系统的节能效果、动态响应性能、稳定性和可靠性。实验结果表明,与传统定速系统相比,设计的变频调速系统节能效果显著、响应快速、运行稳定可靠。