Regard to the real-time dynamic digital twin modelling problem of a new-type distribution network that includes distributed resources such as distributed photovoltaic

energy storage

charging pile

and electric vehicle

a new-type distribution network digital twin topology modeling method based on Common Information Model (CIM) specifications and spectral clustering is proposed.Firstly

according to the specifications of the CIM standard

the digital twin topology models of distributed resources are extended and established.Secondly

based on the digital twin topology models of distributed resources

a digital twin aggregation modelling method for new-type distribution network is proposed based on spectral clustering.Furthermore

an online linked update strategy for the digital twin model of new-type distribution network that integrates real-time topology states is proposed.Finally

a case study is conducted on a distribution network in a certain demonstration area in China

and the results verify the practicability and effectiveness of the method proposed in this paper.This lays the foundation for the application of electrical network twin analysis

such as power flow calculation

optimal power flow

economic dispatch

and safety check

in a new-type distribution network that includes diversified distributed resources.Peer review under the responsibility of Global Energy Interconnection Group Co.Ltd.