SEQUENTIAL CONVEX PROGRAMMING-BASED OPTIMAL ENERGY FLOW CALCULATION METHOD FOR ELECTRICAL INTERCONNECTION SYSTEM

• Main Authors: ZHANG, Hao, LIU, Pengxiang, WANG, Dada, LUO, Enbo, LU, Yuping, WU, Zhi, LU, Hai, GU, Wei, SUN, Qirun
• Format: Patent
• Language: Chinese; English; French
• Published: 16.02.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The present invention relates to the technical field of optimal energy of an electrical interconnection integrated energy system, and disclosed is a sequential convex programming-based optimal energy flow calculation method for an electrical interconnection system. The present invention comprises: before constructing a convex relaxation of a quadratic constraint of an optimal energy flow model, constructing a convex optimization part of the optimal energy flow model in an electrical interconnection integrated energy system according to the fuel cost of each fire point unit node and the gas supply cost of a natural gas source node, constructing the convex relaxation of the quadratic constraint of the optimal energy flow model in the electrical interconnection integrated energy system, and performing first-order Taylor expansion on a convex function at a relaxation solution to form an expansion; giving an accuracy requirement threshold of a nonconvex constraint, comparing the threshold with the size of the imba