Intermodular Interaction Model Design for Vibration Monitoring Systems Based on the Canopen Protocol

Abstract

The aim of the work presented is creation of a program-logic model for the intermodular interaction processes studying in vibration monitoring systems (VMS). The article provides brief information about thermal power plants turbine units, as objects of vibration monitoring, substantiates the modular structure of VMS, shows the advisability of intermodular interaction processes modeling to eliminate errors at the early VMS design stages. The basic information about the CAN interface is given, the format of the messages used and the methodology for estimating the time of their delivery are considered. The necessity of using higher-level protocols for the VMS modules interaction organizing is noted, the basic CANopen protocol services are described. A program-logic model has been developed that allows to determine the message delivery time and the data transmission network load level in VMS and other modular systems based on the CANopen protocol, taking into account the each module configuration parameters. A model implementation example for a turbine unit modular VMS is given, the simulation results are shown and analyzed. Based on the results, possible ways of improving the simulated VMS technical and economic parameters are shown.