Common information model and its application based on source and load interactive system

Abstract

A source and load interactive system is an overall thinking and systematic study of the grid operation and control in the complex environment of interaction between power supply, grid and load. Source and Load Interactive System takes advantage of advanced measurement, communication technology to aggregate distributed power supply, energy storage system, controllable load, such as different types of distributed energy, which utilizes advanced applications to achieve coordinated optimization operation of distributed energy and more reasonable optimal allocation and utilization of resources. However, due to a lack of unified information model and interface standards among all kinds of different application systems, it is difficult to create information communication standards, which results in a lot of difficulties in the integration of a variety of distributed energy and load interactive systems, and the monitoring and coordination management is also difficult to achieve. Based on IEC61970 standard, distributed generation, energy storage, the controllable load, and the electric vehicle charging are expanded by using the common information model(CIM), which can directly reflect distributed energy attributes of the source and load interactive system, such as total capacity, maximum power, real-time power of photovoltaic system, current state of energy storage system, etc. The extension of the CIM based on the economic dispatching of power distribution network side and the time domain simulation could lay the foundation of further research.