A Research of the Maximum Wind Energy Tracking Strategy of the Permanent-magnetic Direct-drive Wind Power

随着环境污染的加剧和能源危机的加深，风能开发等新能源利用技术成为世界研究的热点课题。永磁直驱风力发电机由于机械损耗小、运行效率高、维护成本低等优点而成为研究的重点机型，掌握其运行特性和提高风电机组的风能捕获效率是风力发电领域的重要研究课题。 最大功率跟踪(MPPT)策略是提高风电系统功率转换效率的重要方法。本文系统研究了风力发电系统的运行原理，对永磁直驱风力发电系统进行了详细的理论研究，重点研究基于爬山搜索法的最大风能追踪控制策略，并提出了相应的控制目标和实现方法，以期实现系统的优化及可靠运行。 论文首先介绍了课题的研究背景和意义，综述了国内外风力发电发展概况；为简化结构、降低成本及提高可...With the intensifying of the environmental pollution and the deepening of the energy crisis, the use of some new energy technologies, such as the development of the wind energy, has become a hot topic in the world. Because of low mechanical loss, high operating efficiency, low maintenance cost, permanent-magnetic direct-drive wind power generator becomes the focus among all the models. The ...学位：工学硕士院系专业：物理与机电工程学院物理学系_微电子学与固体电子学学号：1982006115181

Design on Optimizing Configuration of Savonius Rotor

对传统SAVOnIuS型垂直轴风力机各几何参量进行优化,在此基础上加入一种半自动阀门装置,得到的新型SAVOnIuS风力机,在设计风速10 M/S下,对其各项空气动力学性能参数进行计算。结果表明,这种风力机具有很好的开发意义,可应用于沿海地区民宅的小型风力发电,城市公共照明及景区夜景工程的离网供电。This paper mainly optimized the different parameters of conventional Savonius rotor and further attempted to insert valves on the concave side of blade.The aerodynamic performance of this optimum configuration of Savonius rotor was calculated on the basis of the nominal velocity V=10 m/s.The computing results indicated that the optimum Savonius rotor could be used in these fields such as small-scale production of electricity for home use in seaboard,city public lighting and beauty spot night lighting.福建省重大科技项目资助(No.2006H0092

Design of stand-alone solar lighting system based on super capacitor energy-storage

介绍了一种基于超级电容模块储能的独立太阳能照明系统的设计,包括储能模块、充电、稳压输出电路和光控微波探测延时电路,对设计的系统进行性能测试,取得了很好的预期效果,随着超级电容性能的提升和太阳电池性价比的不断提高,离网型太阳能照明系统有广阔的市场。A design of stand-alone solar lighting system based on super capacitor energy-storage module was introduced,including energy-storage module,charging circuit,regulator output circuit and microwave detection-delay circuit of optical control.And by testing the design of the system performance,good expectations were achieved.As the super capacitor performance develops and cost-effective solar cells continuously improve,the stand-alone solar lighting system has a broad market.福建省重大科技项目资助(2006H0092

2000至2008年中西医治疗偏头痛综述

就2000年至2008年中西医治疗偏头痛的文献进行概述和分析。中医运用辨证分型论治为主,以及推拿,针灸等其他疗法。西医从急性发作期治疗和预防偏头痛两个方面分别进行治疗

Research on the Energy-Storage Characteristics of Super Capacitors

基于超级电容器等效电路模型,本文推导了超级电容器等效阻抗函数,研究了恒流充电时的超级电容器的储能基本特性。并结合实验方法,对超级电容器的端电压波动、容量、循环寿命、漏电流进行了广泛测量。在理论分析与实验对比的基础上,根据超级电容器的内部结构探讨了部分特性变化的理论原因,为高效应用超级电容器的储能研究提供了科学依据。Based on equivalent circuit models of a super-capacitor,this paper has proposed an equivalent-resistance function for super-capacitors and investigated basic characteristics under constant-current charging conditions.By use of experimental testing methodology,termination voltage ripples,capacitance,cycle-lifetime and leakage current have been tested and analyzed.By comparing both theoretical and experimental results,the reason for partial characteristics variation of super-capacitor's internal structure has been investigated and discussed.These chievements are essential for some critical applications of super-capacitors.福建省重大科技项目资助(NO．2006H0092

The Design of Energy Storage Module Based on Super Capacitor of Replacement Batteries

本文介绍了一种替代12V蓄电池的超级电容储能模块,并设计了相应的充电和稳压输出电路。通过Matlab软件对充电电流进行计算并采用L4970A和MAX668芯片进行电路设计,保证电路的效率和输出的稳定可靠。随着超级电容性能的提升,这种模块有望在部分电路代替蓄电池。A super-capacitor based module that would be capable of replacing the 12V battery is designed.In control part of the circuit, integrated circuit is employed to make the whole circuit simple,reliable and efficient.As the super capacitor's capability develops,the module may replace traditional battery in some area practically