潮流能机组叶轮监测及其载荷控制研究

发布时间：2018-06-10 05:54

本文选题：潮流能发电 + 监测系统　；参考：《浙江大学》2017年硕士论文

【摘要】：在当前能源危机的形势下,传统能源使用中存在的各种问题越来越突显并得到广泛的关注,人类逐渐着手开发利用可再生清洁能源解决上述问题。其中,对潮流能的利用在近年受到越来越多的关注,逐渐成为国内外的研究热点,并得到了快速的发展,目前在国内外已经有多台机组进行了试运行。但是在潮流能机组实际运行过程中,发现机组叶轮在水下环境中受到的实际载荷经常会超过额定载荷,从而造成叶片N失、折断等现象,因此需要设计装置实时监测机组叶轮上的各状态信号,并以此为基础研究合理的方式对机组叶轮进行保护。本文基于实验室研究需要,设计了潮流能机组叶轮监测系统,并以该系统为基础提出了叶轮载荷控制策略。文章的主要内容如下:第一章归纳并总结了国内外潮流能发电装置的主要研究进展,着重介绍了叶轮监测系统以及叶轮载荷控制的研究现状,并基于现状提出了本文的研究内容与意义。第二章分别从潮流能机组叶片、变桨距机构等不同结构出发分析机组叶轮部分的各类状态,并设计各状态信号的获取方式以及传感器安装方案。第三章根据潮流能机组叶轮监测的实际需求进行潮流能机组状态监测系统的设计。对系统硬件部分的数据处理模块、数据采集模块、数据传输模块进行了硬件选型设计,并编写了相对应的数据处理程序以及在Labview上位机程序。第四章搭建了潮流能机组叶轮监测系统的测试系统,并在海洋环境中对系统的数据采集能力以及数据传输能力进行了不同流速以及距离条件下的实际测试。第五章对潮流能机组叶轮所受不同来源的载荷进行分析得到不同载荷对机组的影响,并以潮流能机组叶轮监测系统为基础,针对不同类型的载荷设计应对方案,提出了一种基于多点载荷监测的潮流能机组载荷控制策略,并进行仿真验证。第六章对本文所做的工作进行了总结,并提出了课题后续的研究重点。
[Abstract]:Under the current situation of energy crisis, the problems existing in the traditional energy use have become more and more prominent and have been paid more and more attention, so human beings have gradually begun to develop and use renewable clean energy to solve the above problems. Among them, more and more attention has been paid to the utilization of power flow energy in recent years, which has gradually become the research hotspot at home and abroad, and has been rapidly developed. However, during the actual operation of the power flow energy unit, it is found that the actual load on the turbine impeller often exceeds the rated load in the underwater environment, resulting in the loss of N and the breakage of the blade. Therefore, it is necessary to design a device to monitor the state signals on the turbine impeller in real time, and to protect the impeller in a reasonable way. Based on the need of laboratory research, the impeller monitoring system of power flow energy unit is designed in this paper, and the load control strategy of impeller is put forward based on the system. The main contents of this paper are as follows: in the first chapter, the main research progress of domestic and international tidal current power generation equipment is summarized, and the research status of impeller monitoring system and impeller load control is emphatically introduced. Based on the present situation, the research content and significance of this paper are put forward. In the second chapter, the various states of the impeller part of the unit are analyzed from different structures such as the blade of the power flow energy unit and the pitch mechanism of the variable propeller, and the acquisition methods of each state signal and the installation scheme of the sensor are designed. The third chapter designs the condition monitoring system of power flow unit according to the actual demand of impeller monitoring. The data processing module, data acquisition module and data transmission module of the hardware part of the system are designed, and the corresponding data processing program and the upper computer program in LabVIEW are written. In chapter 4, the testing system of the impeller monitoring system of tidal current energy unit is built, and the data acquisition ability and data transmission ability of the system are tested in the marine environment under different velocity and distance. In the fifth chapter, the influence of different loads on the turbine is obtained by analyzing the load from different sources of the impeller of the power flow unit, and based on the monitoring system of the impeller of the power flow unit, the corresponding scheme is designed for different types of loads. A load control strategy based on multi-point load monitoring for power flow generator is proposed and verified by simulation. The sixth chapter summarizes the work done in this paper, and puts forward the following research focus.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P743;P742

【参考文献】