Application of Digital Twin Model in Monitoring the Steady State Operation of DC Bus Capacitor Bank

Abstract

The concept of digital twin provides a new solution for the condition monitoring of DC bus capacitor bank. In this paper, a condition monitoring method of DC bus capacitor bank based on digital twin model is established. Firstly, based on the analysis of the physical characteristics of the capacitor, the digital twin model framework of the DC bus capacitor bank is constructed. After that, the application details of the proposed digital twin model in the condition monitoring of the DC bus capacitor bank are analyzed from five steps, which include digital modeling, synchronous operation, accuracy judgment, parameter calibration and condition monitoring application. Finally, the proposed method is verified by simulation.