Delay Measurement Method and System of Virtual Power Plant Communication Network Supporting Distributed Resource Aggregation Access

Different types of distributed “source load” resources can participate in power grid regulation in different time scales, corresponding to the service response time of milliseconds, seconds, minutes and hours. Distributed “source load storage” resources such as distributed power supply, industrial load, commercial buildings, energy storage participation in new energy consumption of the grid, peak cutting and valley filling, frequency modulation, voltage regulation and interruptible load control need to respond quickly and regulate accurately, while the dispatching system and virtual power plant dispatch command communication need to pass through the production control region, the management information region, the Internet region and the border protection equipment. The delay of dispatching communication network is difficult to control on demand, the multi-security protection means of mass terminals is lacking, and the user is difficult to accurately control and coordinate output. As a result, the virtual power plant's aggregated distributed resources are difficult to efficiently and real-time participate in the accurate regulation and control of the power grid. The communication network delay measurement scheme is designed, and the distributed measurement tool of network delay is developed to realize the perceptable state of the aggregated regulation and control network. It provides effective support for distributed “source load” resources to participate in accurate regulation and collaborative output of the power grid, helps the effective aggregation and deployment of large-scale distributed flexible resources, and solves the problem of insufficient flexibility adjustment capacity on the load side of the power system.