【作者】 王毅；

【导师】 黄守道；

【作者基本信息】 湖南大学 ， 电机与电器， 2004， 硕士

【摘要】 在能源消耗日益增长、环境污染日渐严重的今天，在当今对可再生能源的开发利用中，风能由于其突出的优点而成为世界各国普遍重视的能源，风力发电技术也成为各国学者竞相研究的热点。而其中变速恒频风力发电技术因其高效性和实用性正受到越来越多的重视。 无刷双馈电机是一种结构简单、坚固可靠、异同步通用的电机，可在无刷情况下实现双馈。它具有功率因数可调、高效率的特点，比较适用于变速恒频恒压发电系统中。 本文在传统风力发电的基础上，致力于研究变速恒频风力发电技术，以作为变速恒频风力发电机用的笼型转子型式的无刷双馈电机为主要研究对象，进行了深入的研究，主要包括以下几方面： 1．对国内外风力发电研究现状作了较为全面的综述，介绍了无刷双馈电机发展概况和国内外研究现状。 2．研究了无刷双馈电机的原型及发展，基本结构和运行原理，电磁设计特点。解释了将无刷双馈电机应用于变速恒频风力发电的可行性和优越性。探讨了无刷双馈电机的特性。 3．首次推导了适用于变速恒频风力发电无刷双馈电机的功率控制数学模型提出无刷双馈电机变速恒频风力发电系统的功率控制策略。通过仿真分析验证了模型和控制策略的正确性。 4．研究了无刷双馈电机作变速恒频风力发电机运行时的定子功率绕组磁链定向矢量控制策略。 5．在总结无刷双馈电机传统各种控制策略的基础上，探讨了智能控制在无刷双馈电机的应用。通过仿真分析验证了模糊功率因数控制策略的正确性。更多还原

【Abstract】 Now, energy sources consume increasing daily and environment empoison being serious gradually, in the exploitation for the renewable energy source, wind power is paid great attention by more and more countries because of its stand out excellence, The wind power generation technology also become research hotspot of many country’s scholar. And the variable-speed constant-frequency(vscf) generation technology is paid attention more and more for its high efficiency and practicability.The Brushless Doubly-Fed Machine (BDFM), with simple structure and favorable reliability, has gained renewed attention in variable-speed constant-frequency generator applications in recent years for it features adjustable power factor and high efficiency.In this paper, based on the traditional wind power generation, the variable-speed constant-frequency generation technology is mainly research, a comprehensive research on the BDFM with cage rotor used in the variable-speed constant-frequency wind power generation. The following items are include:1. Summarize the research status of the wind power generation, introduce the history and developing future of and BDFM.2. The prototype of BDFM and its development are investigated, study in detail the principal of BDFM design feathers, the feasibility and superiority for BDFM used in the variable-speed constant-frequency generator applications is explained3. The variable-speed constant-frequency generation BDFM wind power generation power control mathematic model is firstly derived, and its power control strategy is found. Computer simulation is given to verify this power control strategy.4. this paper has analyzed the stator flux oriented vector control strategy and mathematic model of the BDFM as vscf wind power generator .5. Having analyzed the BDFM control strategies, the intelligent control Strategy on the BDFM control is studied. Computer simulation is given to verify this fuzzy power factor control strategy更多还原