舞台吊杆七段式速度控制策略探讨  

Discussion on Sevenphase Control Strategies of Fly Bars

作　　者：蒋伟[1] 胡高平[1] 刘妍[1] 

机构地区：[1]中国传媒大学,北京100024

出　　处：《现代电子技术》2006年第5期73-75,共3页Modern Electronics Technique

摘　　要：舞台吊杆在演出过程中,经常需要快速起停,因此,他运行的平稳性和定位的准确性将直接影响着他的安全与使用。目前的吊杆提升大都采用三段式速度控制模型,但是采用这样的速度给定,钢丝绳上的张力变化剧烈,从而会引起钢丝绳的摆动,对提升系统会造成有害的冲击,影响整个提升设备的使用寿命。针对上述问题,给出了舞台吊杆七段式速度控制模型,探讨了不同阶段的控制策略,提出了不同工况下,安全运行与控制参数之间的计算原则与方法,为实际的七段式速度模型和软件编程提供了理论依据。When performance is going on, quick start and stop of the fly-bars are needed,so their stability of move and accuracy of orientation will directly affect the application. At present,speed control mode of three-phase is mostly applied on fly-bars. But if we use this mode,there will be a bad impact on hoisting system whieh will influence the span of the equipments because a sudden speed of fly-bars will alter the strain of steel wires hugely and lead to the swing of them. Aiming at this problem, the paper proposes a speed control mode of seven-phase fly bars. It also discusses control strategies at different moments,and puts forward calculation principles and methods between safe eourse and controls parameter in different status. It supplies a theoretic basis for actual seven-phase speed control mode, and for its software programming as well.

关 键 词：吊杆 提升系统 PLC 控制模型 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]