Research on Online Monitoring and Evaluation and Cluster Closed-Loop Control Technology for New Energy Sites

Under the dual-carbon goal, the new power system is dominated by new energy. The explosive growth of new energy such as photovoltaic and wind power in China has led to an increasing demand for power control system design and online monitoring and evaluation of new energy stations. Firstly, a new energy station active support performance analysis model was proposed and three corresponding system architectures were developed. Secondly, the online monitoring and evaluation technology for the active support performance of new energy and the closed-loop control technology for the cluster of new energy stations were studied. Finally, a new energy active support system was designed and verified through typical system validation. The results showed that the designed system can achieve accurate online monitoring of active support performance, and can realize multi-machine independent networking, hybrid networking of voltage and current sources, cluster coordination control under large impact load disturbances, and other functions.