Design and Simulation of Measurement and Control System for Silage Cylindrical Baler Based on LabVIEW

摘要

In order to study grass's rotary compression characteristics during round bundle process, measurement and control system for silage cylindrical baler was developed in this paper based on virtual instrument technology. The system was constituted of KM520-B silage cylindrical baler, three-phase asynchronous motor, frequency converter, sensors, data acquisition card, the LabVIEW software platform, and so on. This system can be used to acquire information such as forming chamber's rotary compression pressure, motor's input torque and motor's power consumption. By controlling the motor's input rotate speed, this paper studied the motor speed, the grass moisture content and the grass bale density's influence on compression power consumption, grass bale forming quality and forming chamber's rotary compression pressure. At the same time, this paper established simulation equipment using MAX of NI Corporation to check the built measurement and control system. The results proved that the system can well complete the set of functions.