An Optimal Decision-Making Method for Offshore Wind Power Considering Multiple Transmission Modes

With the increasing scale of offshore wind farms and the diversification of power transmission technologies, selecting the most suitable transmission scheme requires a comprehensive analysis of technical feasibility, economic efficiency, and grid adaptability. This paper investigates various offshore wind power transmission methods, including highvoltage alternating current (HVAC), high-voltage direct current (HVDC), and hybrid HVAC/HVDC systems. A multi-objective decision-making framework is proposed, incorporating factors such as transmission distance, power capacity, system reliability, reactive power compensation, and overall economic cost. A case study of a deep-sea wind power cluster in China is presented to evaluate five different transmission schemes. The results demonstrate that while each transmission method has unique advantages and limitations, hybrid HVAC/HVDC transmission offers a balanced solution in terms of reliability, technical complexity, and cost-effectiveness. The proposed decisionmaking model provides a valuable reference for optimizing offshore wind power transmission strategies, contributing to the development of low-carbon, intelligent energy systems.