Design principles of crane swing reduction systems

Thread Content

During the production of cranes, swaying of the crane is a very dangerous phenomenon, so cranes need a reliable sway reduction system. Currently, in the control of crane swing reduction systems, PID correction is a very safe and reliable basic control method. Crane swing reduction PID control is the oldest and most resilient basic control method. With the advancement of digital computer technology, new control methods for crane swing reduction systems have also emerged. But to date, PID control remains the control method with the most advantages and the widest application. The PID system uses a Siemens 200 PLC as the controller, and software methods are employed to achieve real-time control of the power frequency in order to reduce oscillations. Furthermore, during the control process, the frequency of the inverter is automatically adjusted according to the operating conditions of the system. It has a simple principle and is easy to use. The PID control method is suitable for various crane operating environments; it significantly reduces the swaying of cranes during operation, thereby improving their efficiency.