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在孤立电网中,例如风一柴油互补发电系统,相对高的风电穿透功率能够在很大程度上降低燃料消耗,节约运行成本,但是,风力发电机输出的随机功率扰动给系统带来电压和频率的变化,会对系统稳定性造成相当大的影响.建立了多极永磁同步风力发电机与柴油同步发电机的数学模型,用PSCAD/EMTDC对永磁同步风力发电机与柴油发电机供电的风-柴油互补发电系统进行了仿真和分析.仿真和分析结果表明:基于多极永磁间步风力发电机的风-柴油互补发电系统可以依靠柴油发电机的调节系统实现较高的风电穿透功率和良好的动态性能. 相似文献
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海上风力发电领域——防腐蚀专业的新战场 总被引:1,自引:0,他引:1
风力发电是世界上发展最快的绿色能源技术,在陆地风电场建设快速发展的同时,海洋正在逐步成为风力发电的另外一个主战场。笔者通过几年来参与的研究项目,简要分析了海上风力发电的现状、前景及当前面临的难题,并通过分析风机的构造提出了防腐专业在风电行业的发展前景,重点分析了几种常用的防腐蚀方法在风电行业的应用。 相似文献
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Tidal current energy is a type of renewable and sustainable marine energy. Despite the complexity in exploitation, considerable improvement has been achieved since the beginning of the current century. This paper discusses the hydrodynamics progress through the perspective of equipment design and industrial application of tidal current energy technology, including tidal resources estimation, kinetic energy conversion, converters, and tidal farm array arrangement and design, then summarizes representative hydrodynamics problems, their theoretical models and numerical methods. Technical characteristics of converters and supporting structures are also analyzed to highlight new problems and developing trends in the present stage, offering references for optimal design of tidal energy converters and power station projects. 相似文献
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