Journal
IEEE TRANSACTIONS ON SMART GRID
Volume 11, Issue 6, Pages 5466-5469Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSG.2020.3002104
Keywords
Cost function; Economics; Computational modeling; Load modeling; Mathematical model; Power generation; Analytical models; Virtual power plant; generation unit aggregation; economic dispatch; piecewise quadratic function
Categories
Funding
- National Key Research and Development Program of China [2016YFB0901900]
- National Natural Science Foundation of China [51977166]
- China Postdoctoral Science Foundation [2017T100748]
- Natural Science Foundation of Shaanxi Province [2020KW-022]
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The generation unit aggregation is frequently used in a virtual power plant which participates in real-time spot markets. In this letter, an analytical method is proposed to quickly and precisely compute a piecewise quadratic function of aggregated units. Three propositions are introduced and proven in the letter in order to guarantee the accuracy of the equivalent model after aggregation. Numerical results verify the validity of the proposed method.
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