电工技术学报2025，Vol.40Issue(18)：5786-5804,19.DOI:10.19595/j.cnki.1000-6753.tces.241524
双定子风力发电机及关键技术发展综述
Overview of Dual-Stator Wind Power Generator and Its Key Technology
摘要
Abstract
Traditional energy reserves are gradually decreasing,and environmental problems are becoming increasingly severe.Developing renewable energy generation technologies,especially wind power generation technology,has become essential.To fully utilize wind energy resources and reduce the cost of electricity per kWh,wind power generators are developing towards a large scale,even over 20 MW.Dual-stator wind power generators can fully utilize the internal space of large-scale wind power generators,reducing system volume and improving power density effectively.Therefore,dual-stator wind power generators have become one of the research hotspots.The topology structures,implementation schemes of mechanical structure,and control strategies of dual-stator wind power generators are discussed,and the future development directions are prospected. Permanent magnet synchronous generator(PMSG)has been widely used in large-scale wind power generation systems due to its unique advantages of brushless reliability,high efficiency,and strong low-voltage ride-through capability.Superconducting generators replace conventional copper wire coils with superconducting coils,which have zero resistance characteristics and high current-carrying capacity.Therefore,superconducting generators have the advantages of high power density and high efficiency.A brushless doubly fed generator(BDFG)has several advantages:brushless,high reliability,easy realization of low-speed direct drive,small capacity of the required converter,and low cost.It has gradually penetrated large-scale offshore wind power generation.The existing topologies of dual-stator PMSG,dual-stator superconducting generator,and dual-stator BDFG are introduced in detail.In addition,the topologies of the dual-stator hybrid excited synchronous generator,dual-stator switched reluctance generator,and other dual-stator generators are introduced. The structure of the dual-stator wind power generator is more complex than that of the traditional single-stator single-rotor generator.A reasonable and feasible assembly plan is the fundamental guarantee for its long-term stable operation.Therefore,the different mechanical structure implementation schemes of dual-stator wind power generators are summarized in detail.The overall performance of wind power generation systems depends on wind power generators and control strategies.Thus,the control strategies are introduced. At present,the main research work on dual-stator wind power generators focuses on the topology structures.To better meet the development requirements of offshore wind power generation,the research work should be strengthened in the following aspects.(1)Apply new conducting,magnetic,and insulation materials to dual-stator wind power generators.(2)Develop new topology structures with high power density,high efficiency,high reliability,and low cost,providing options for the large-scale offshore wind power system.(3)Propose new cooling technologies to solve poor heat dissipation performance in existing cooling systems.(4)Study the modular structures and design methods to solve the difficulties in producing,transporting,and installing large-scale wind power generators.(5)Propose fault-tolerant control strategies to improve the fault redundancy capability of wind power systems.(6)Develop the products of dual-stator wind power generators to meet the requirements of offshore wind power generation and lay the foundation for industrial application.关键词
双定子/风力发电机/拓扑结构/机械结构/控制策略Key words
Dual stator/wind power generator/topologie structure/mechanical structure/control strategies分类
信息技术与安全科学引用本文复制引用
王皓,王继轩,于思洋,张凤阁..双定子风力发电机及关键技术发展综述[J].电工技术学报,2025,40(18):5786-5804,19.基金项目
辽宁省科技计划联合计划(基金)(2023-BSBA-253)、沈阳市中青年科技创新人才支持计划(RC220248)和国家自然科学基金(52007124)资助项目. （基金）
