TOPOLOGICAL STRUCTURE OPTIMIZATION METHOD AND SYSTEM FOR POWER COLLECTION SYSTEM OF LARGE-SCALE OFFSHORE WIND FARM

• Main Authors: LIN, Yi, YE, Rong, TANG, Yuchen, CHEN, Xiaoyue, YANG, Jianjun, FANG, Chaoxiong, LI, Jingyi, YUAN, Yukuan, HUANG, Hai, WEN, Xishan, LIN, Weiwei
• Format: Patent
• Language: Chinese; English; French
• Published: 15.06.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The present invention relates to a topological structure optimization method and system for a power collection system of a large-scale offshore wind farm. The method comprises: constructing a full-life-cycle cost model that takes reliability and cost efficiency into consideration, wherein the full-life-cycle cost model relates to one-time investment cost, operation and maintenance cost, electric power line loss, failure-induced electric power loss, and failure maintenance cost; and generating and employing topological structures satisfying current-carrying capacity constraints, completing a submarine cable model selection according to the generated topological structures, calculating full-life-cycle cost for each topological structure, and using the full-life-cycle cost as a target function of an improved genetic algorithm, so as to obtain an optimal topological structure for the power collection system. The invention is simple and has good practicability, takes into consideration current-carrying capacity co