Comprehensive classifications and characterizations of power system flexibility resources
Challenge and objective
Due to increased integration of renewable forms of generation, ageing grid infrastructure, and rapid increase in peak load demand, flexibility is becoming economically more viable and plays a significant role in the future power system. There is vast amount of literature on flexibility covering research, demonstration and validation activities, but there is still no unified definition of the term "flexibility" and consistent characterizing terms for "flexibility resources".
Work performed
Review of prominent flexibility-related publications.
Significant results
Suggested comprehensive flexibility definition and unified characterizing terms for flexibility resources.
Suggested a taxonomy method which is applied to classify flexibility resources. The presented taxonomy method clears the confusion on "what-is-what" under the concept of flexibility.
Presentation of unified characterizing terms in mapping flexibility resources to ancillary services.
Impact for distribution system innovation
Improved knowledge related to characterization of flexibility resources, that for example can be further utilized in techno-economic evaluation of flexibility resources in grid planning processes.
Comprehensive illustration of important characteristics of flexibility resources
