Control method and system for slewing mechanism of tower crane
Control method and system for slewing mechanism of tower crane
- Neue Suche nach: ZHU WEIJIN
- Neue Suche nach: ZHU WEIJIN
The invention discloses a control method and system for a slewing mechanism of a tower crane. The method comprises the following steps: calculating a given speed of a motor according to a target speed of the motor and acceleration and deceleration time of the motor; obtaining motor torque current through calculation according to the three-phase current of the motor, and carrying out low-pass filtering calculation on the motor torque current to obtain motor torque current; calculating a motor adjusting speed according to the motor torque current; calculating the actual given speed of the motor according to the sum of the given speed of the motor and the adjusting speed of the motor; and adjusting the running speed of the motor in real time according to the actual given speed of the motor so as to adjust the rotating speed of the big arm of the tower crane in real time. According to the invention, the operation speed of the motor is adjusted in real time to suppress deformation oscillation of the tower body, overshoot and oscillation of the slewing speed of the big arm are prevented, and the slewing speed of the big arm can be stably controlled, so that the comfort, the reliability, the safety and the operation efficiency of a slewing system are remarkably improved; moreover, the method does not depend on parameters of a slewing system control model, and is high in algorithm robustness and good in applicability.
一种塔式起重机回转机构控制方法及系统，其中方法包括：根据电机目标速度和电机加减速时间计算得到电机给定速度；根据电机三相电流计算得到电机转矩电流，并将电机转矩电流进行低通滤波计算得到电机转矩电流；根据电机转矩电流计算得到电机调整速度；根据电机给定速度与电机调整速度之和计算得到电机实际给定速度；根据电机实际给定速度实时调整电机运行速度，以实时调整塔式起重机大臂的回转速度。本发明通过实时调整电机运行速度以抑制塔身形变振荡，防止了大臂回转速度超调和振荡，可使大臂回转速度控制平稳，从而显著提高了回转系统舒适性、可靠性、安全性和运行效率；且本发明不依赖回转系统控制模型参数，算法鲁棒性强，适用性好。
Dokumentinformationen
Control method and system for slewing mechanism of tower crane
一种塔式起重机回转机构控制方法及系统
2021-06-22
Patent
Elektronische Ressource
Chinesisch
Ähnliche Titel
Tower crane slewing mechanism control method, equipment, system and storage medium
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