EU PVSEC Programme Online
EU PVSEC 2021, 6 - 10 September 2021
Presentation: 5DO.1.3 Research on Digital Twin System of Photovoltaic Array
Type: Oral
Date: Thursday, 9th September 2021
08:30 - 10:00
Author(s): K. Ding, X. Chen, J. Zhang, S. Weng, L. Feng, F.U. Hamelmann
Presenter / Speaker: X. Chen, Hohai University, Changzhou, China
Event: Conference Conference
Session: 5DO.1 Application of Machine Learning & Modelling in PV Systems
Topic: 5. 3 Operation, Performance and Maintenance of PV Systems
Keywords: PV Array, Modelling / Modeling, Digital Twin
Summary / Abstract: To ensure the smooth operation of photovoltaic (PV) power plants and provide stable power output for the power system, a reliability evaluation of the power output of the PV power plant is required. PV array is a significant part of the PV power plant. The modelling technique of the digital twin is used to build a digital twin model of the PV array that maintains a simultaneous mapping to the output characteristics of the physical PV array and can therefore be used as the basis for PV array reliability assessment. Based on the existing PV array modeling research, the dynamic bayesian network (DBN) is used to realize the adaptive update of PV array model parameters and complete the construction of the digital twin model. The digital twin model enables real-time derivation of model parameters, prediction of output power, and reliability assessment of PV array. The research conducted in this paper is a preliminary attempt at digital twin technology in the PV field, hoping to promote digital twin application in the PV field.