Method for controlling the orientation of a crane load

摘要

The method involves connecting a container spreader (20) with a clamp that is attached to cables for handling a container load by a rotator device (15). A rotation angle of the container load (10) is controlled by a control device that is designed as an adaptive control device using moment of inertia of the load as a main parameter. The moment of inertia of the load is determined based on data that is obtained by measuring a system condition during a crane operation. A dynamic model of the system is provided for evaluating the data that is described by the system condition. An independent claim is also included for a system for controlling an orientation of a crane load.