Research on visual operation and maintenance platform of accelerator neutron source driven by digital twins

As a key technology connecting physical entities and virtual models, digital twin builds a bridge and bond for the exchange and sharing of virtual and real elements. In view of the complexity of the special equipment structure of accelerator neutron source (ANS), the lack of real-time mapping of the running state of the equipment, and the low degree of simulation, the research and implementation framework of the key technologies of the DT(Digital Twin)-driven visual operation and maintenance platform of the ANS (VOMP-A) was proposed. It includes five parts: digital model construction of the ANS, multi-source heterogeneous data acquisition and monitoring of the ANS, yield prediction and performance optimization of the ANS, fault diagnosis and health assessment of the ANS, and maintenance strategy and health management of the ANS. Through the research on the above key technologies, a whole process operation mechanism is constructed, which includes 3D(Three dimensions) dynamic visual monitoring of ANS, full-process driving of digital twin, multi-parameter optimization of neutron yield, comprehensive analysis of fault prediction and intelligent maintenance strategy, so as to realize the service requirements of reflecting reality by virtual reality, controlling reality by virtual reality, optimizing reality by virtual reality, and prerealizing reality by virtual reality. It can effectively avoid equipment damage caused by accidental failure and further improve the production and operation efficiency of the ANS. • The basic framework of the accelerator neutron source visual operation and maintenance platform driven by digital twin was proposed. • Five key technologies of accelerator neutron source visual operation and maintenance platform are proposed, including model construction, data acquisition, process optimization, fault diagnosis, and health management. • The technical difficulties and development trends of the accelerator neutron source operation and maintenance platform are proposed.