Aspects of Adopting CIM Standard by ENTSO-E and Common Grid Model Exchange Standard Implemention in Transelectrica

This paper presents theoretical issues about CIM （common information model） and CGMES （common grid model exchange standard）, which will allow the exchange of data bases for power flow, short circuit and dynamics at ENTSO-E （European network for transport system operators for electricity） level. Grid model exchange is a complex process covering a variety of use cases, which include the exchange of equipment information, topology information, information on power system state variables, steady state hypothesis information. CGMES is an ENTSO-E standard that follows the CIM guidelines of IEC （International Electrotechnical Commission） TC57/WG13 in order to comply with the requirements of the European network codes. There are mentioned in the paper the challenges of implementing CIM and CGMES in Transelectrica for the planning cases.

A Review on TSO-DSO Data Exchange,CIM Extensions and Interoperability Aspects

The exchange of information between transmission system operators(TSOs)and distribution system operators(DSOs)is a common practice.However,the evolution of the regulatory frameworks in Europe has increased the need for enhancing TSO-DSO data exchange and interoperability.This paper provides an overview of the TSO-DSO data exchanges and demonstrates the best practices using International Electrotechnical Commission(IEC)common information model(CIM),including the implementation of IEC common grid model exchange standard(CGMES),and discussion of the corresponding advantages,disadvantages,and challenges.Furthermore,this paper evaluates and reports the activities already carried out within European projects,with particular focus on TSO-DSO interoperability.Finally,this paper concludes the need for TSOs and DSOs to rely on standard-based solutions when performing TSO-DSO data exchange,which enables the efficient operation and development of the future power systems.