Operation control and maintenance system of distributed resources
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Abstract After connection of distributed resources into the power grid, maximizing the application of new energy and guaranteeing safe, stable, optimal, and economic operation of the distribution network are somewhat contradictory goals. The influences of the distributed resources on the distribution network need to be minimized, and the distributed resources need to be connected in an orderly manner. For distributed resources, the power generation efficiency must be maximized for the change from a restricted or fixed connection to a “plug-and-play” (PNP) connection. To resolve this contradiction, it is necessary to establish an operational control system for distributed resources, in order to realize orderly and scheduled power generation control and optimized dispatching of distributed resources. This chapter provides details on operation and maintenance (O&M) of distributed energy resources. It first discusses use of the generating capacity penetration (GCP) index, defined as the ratio of the power generation of the distribution resources and the total power consumption of the loads, to evaluate the utilization. It then covers details of operation control specific to distributed power, with a focus on PNP issues. A photovoltaic (PV) generation application is described, and the application of IEC 61850 to O&M of distributed resources is presented. The final section of the chapter discusses the application of Internet of Things technology to O&M of distributed resources.