Multi-Objective Optimal Configuration of Electrohydrogen Coupled System Based on Linear Reconstruction Method

With the access of high percentage of renewable energy generation, the intermittency and volatility of renewable energy exacerbate the risk of safe and stable operation of the power system, making flexibility resource allocation more and more critical. The article proposes a multi-objective joint optimal allocation model of electric-hydrogen coupling equipment and power storage equipment based on linear reconstruction method. Firstly, the various types of component equipment in the electric-hydrogen coupling system are modeled; secondly, the two optimization objectives of the total annual cost of the electric-hydrogen coupling system and the renewable energy consumption rate are considered comprehensively, and the multi-objective problem is converted into a single-objective problem through normalization; thirdly, the nonlinear terms in the original capacity optimization model are linearly reconfigured based on the linear reconstruction method, so that the MINLP problem is converted into the MILP problem, and the reconstructed model can be directly solved by the solving method. The reconstructed model can be solved directly by the solver; finally, the proposed model is verified by the arithmetic example.