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Feczkó Botond – Divényi Dániel – Sleisz Ádám – Csercsik Dávid cikke a Smart Grids and Sustainable Energy (2024) folyóiratban

Smart Grids

Bid-Aggregation Based Clearing of Day-Ahead Electricity Markets

Botond Feczkó – Dániel Divényi – Ádám Sleisz – Dávid Csercsik

Smart Grids and Sustainable Energy Vol. 9. Art. No. 36. 2024
Published:

Abstract

In this work we propose a heuristic clearing method for a simplified model of European day-ahead electricity auction markets, considering divisible standard bids and block orders. In the first part of the process, a computationally less demanding problem is solved using an approximation of the cumulative demand and supply curves, which are derived via the aggregation of simple bids. Based on the outcome of this problem, estimated ranges for the clearing prices of individual periods are determined. In the final step, the clearing for the original bid set is solved, taking into account the price ranges determined previously as constraints, reducing the feasibility region of the clearing problem. By removing bids whose acceptance or rejection is already determined by the assumed price range constraints, the size of the problem is also significantly reduced. Via simple examples, we show that due to the possible paradox rejection of block orders the proposed bid-aggregation based approach may result in a suboptimal solution or in an infeasible problem, but we also point out that these pitfalls of the algorithm may be avoided by using different aggregation patterns. We propose to run multiple threads of the algorithm, using different aggregation patterns. We evaluate the performance of the algorithm via numerical tests.
https://doi.org/10.1007/s40866-024-00219-z

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