Journal
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
Volume 93, Issue -, Pages 272-284Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2018.04.109
Keywords
Operational flexibility; Renewable generation integration; Uncertainty; Robust optimization; Stochastic optimization
Funding
- Research on Green Dispatch Technology of Shanxi Power Grid
- Foundation for Innovative Research Groups of the National Science Foundation of China [51621065]
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Though considerable effort has been devoted to exploiting generation-side and demand-side operational flexibility in order to cope with uncertain renewable generations, grid-side operational flexibility has not been fully investigated. In this review, we define grid-side flexibility as the ability of a power network to deploy its flexibility resources to cope with the changes of power system state, particularly due to variation of renewable generation. Starting with a survey on the metrics of operational flexibility, we explain the definition from both physical and mathematical point of views. Then conceptual examples are presented to demonstrate the impacts of grid-side flexibility graphically, providing a geometric interpretation for a better understanding of the concepts. Afterwards the formulations and solution approaches in terms of grid-side flexibility in power system operation and planning are reviewed, based on which future research directions and challenges are outlined.
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