Testing and Verification of Distribution Transformer Substation Area Flexible Interconnection Technology Considering Multiflow Fusion

In this paper, the development requirements of flexible interconnection technology in power distribution transformer station area are analyzed firstly, and the architecture of “acquisition, transmission, storage and application” is given by combining five power distribution transformer station area flexible interconnection systems. The characteristics of flexible interconnection in power distribution transformer station area are analyzed from the perspectives of multi-flow integration, such as energy flow, information flow, control flow and service flow. The paper focuses on load balancing, fault transfer and black start in the service flow, and gives the control scheme of flexible interconnection operation of multi-current fusion distribution transformer station area. Finally, it sets up two real type empirical simulation platforms of flexible interconnection system of distribution transformer station area in the laboratory environment. The monitoring function of energy flow-information flow-control flow, fault disposal service flow and power mutual exchange service flow of the interconnected system are verified, which provides technical support for the next stage flexible interconnection demonstration project construction of distribution transformer platform area.