Discussions about Cooperative Modeling between Electricity Substation and Control Center

Power grid modeling, data maintenance and management in substation and control center are based on IEC61850 standard and IEC61970 standard respectively. The difference between the two standards inevitably affects the data sharing and maintainability of grid models and the operational efficiency of the whole system. The key issues concerning on cooperative modeling，such as power equipment collaborative naming mechanism, mutual mapping between SCL and CIM, constructing complete model for traditional substation, power grid model segmentation and merging are discussed in detail. The analysis shows that collaborative modeling is imperative for power grid to improve efficiency, reduce workload and enhance power system intelligent level in the future.

Distributed Modeling Technology for Large Power Grid Modeling Based on Cloud Computing

As the original grid model cant meet the needs of smart grid development, a distributed grid modeling and integrated management technologies based on cloud computing are proposed in this paper. In this scheme, a multi-level integrated "model cloud" is developed with horizontal collaboration and vertical cut-through using cloud storage, cloud services, cloud computing and other related technologies. The grid models of levels of dispatching institutions are gathered, stored and managed with unified model service. The scheme can dress the issues of device naming, information sharing, model exchanging and model unifying, reduce the maintenance workload, improve the quality of the model and the degree of coordinated automation and enhance the level of dispatching and analysis of the whole power grid.