Framework for Future Smart Grid Operation and Control with Source-Grid-Load Interaction

Abstract

In order to meet the challenges in the future smart grid operations, this paper presents a new concept of Source-Grid-Load interactive operation and control, which provides new ideas and effective technical means for the future smart grid operations. The Source-Grid-Load interactive operation consists of complementarities of power supply sources, coordination between power supply sources and power grid, interactions between grid and load, as well as interactions between power supply sources and system load. It aims to improve energy balance and dynamic power balancing ability among the power supply sources, load and power grid more economically, efficiently and safely. Based on analyses of the complex interaction characteristics of the future grid, this paper proposes a theory and technology framework for the interactive and flexible system operation, puts forward that in-depth study shall be made to understand the Source-Grid-Load complex interaction characteristics, form the interaction modeling method, develop the technologies of energy balance and security analysis, and break through the technology of the Source-Grid-Load coordinative control in the environment of wide area complex interaction. It provides systematic basis for the flexible and interactive operation and control in the future smart grid, and helps to push the development of power system scheduling from the unidirectional mode 'generation following the load' to the smart and interactive mode of Source-Grid-Load.