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深远海风电柔直高效送出关键技术与核心装备
2024-05-29 08:50

Industry Overview - China is the largest market for offshore wind power, with a planned cumulative installed capacity of over 100GW by the end of the 14th Five-Year Plan period, and over 200GW by 2030 [9] - 70% of China's offshore wind resources are located in deep-sea areas, making large-scale deep-sea wind power development and transmission a key trend [9] - Globally, the cumulative installed capacity of offshore wind power is expected to reach at least 2,000GW by 2050 [9] Key Technologies for Offshore Wind Power Transmission - Offshore wind power transmission systems mainly include AC and flexible DC solutions, with AC suitable for distances within 70km and DC for distances over 70km [10] - Deep-sea flexible DC transmission is a major global trend, with Germany and the Netherlands completing 14 ±525kV/2000MW project contracts in 2023 [12] - China has made significant progress in deep-sea flexible DC transmission, with multiple projects in operation, under construction, or planned [13] Core Equipment and Intelligent Operation - The company has full industrial chain capabilities in design, supply, operation, and testing, providing equipment for major offshore wind power projects [37] - Key equipment includes 72.5kV-550kV GIS, ±800kV/5000MW flexible DC converter valves, and DC energy consumption devices [39][42] - Intelligent operation systems include offshore wind power centralized monitoring and digital twin platforms, enhancing equipment reliability and reducing maintenance costs [44][47] Research and Development Focus - The company is focusing on lightweight and compact design of offshore converter stations, multi-terminal networking, and source-grid coordination to improve system reliability [59] - Wide-frequency oscillation online assessment technology is being developed using AI and big data for risk evaluation and oscillation location [59] - Further research is needed to optimize insulation levels, equipment parameters, and modular dynamic redundancy strategies for deep-sea wind power transmission [60]