Development of a digital twin of the control system test bench for digital instrument transformers

The presented work considers the option of implementing a digital twin of a test bench control system for digital instrument transformers using a universal SCADA system. The basis of the design of the test bench is a hydraulic servo drive using hydrostatic guides. Digital instrument transformers must have a service life of at least 25 years, a verification interval of 8 years or more. To achieve such high performance characteristics, a large number of tests are required for such products. In particular, to check the reliability of operation of this class of devices, it is necessary to conduct tests on a diagnostic vibration stand. The task of creating test benches based on a hydraulic servo drive using hydrostatic guides is an urgent scientific and technical task. The architecture of a digital twin of the test bench control system has been developed. To test the functionality of the application, a simulation of the operation of a digital twin of the control system of a test bench for digital instrument transformers was performed. Aim. Based on an analysis of the operating modes of the test bench and options for implementing digital twins, develop a prototype of a test bench control system for digital instrument transformers using a universal SCADA system. Materials and methods. The posed scientific problems were solved using key methods of digitalization of production, computer and simulation modeling of the interaction of the digital twin with elements of the test bench control system. Results. The main practical result of the research is the development of a digital twin of the test bench control system for digital instrument transformers. It is proposed to use the domestic universal SCADA system when implementing the digital twin in software. Conclusion. Analysis of options for implementing a digital twin showed that the use of universal SCADA systems simplifies the development process. Such software systems provide the ability to control automated technological processes, collect and process data in real time, monitor the condition of equipment and the progress of production processes, as well as quickly respond to any problems. When developing a digital twin, the use of a universal SCADA system is justified. Prototyping of the test bench control system was carried out using a universal domestic SCADA system. An OPC server has been developed for data exchange with a microcontroller of the STM32 family in the Modbus Universal MasterOPC application and a project in the MasterSCADA system. Testing of the application showed the full functionality of the developed project.