液压风力发电系统稳定性控制仿真研究

发布时间：2018-12-24 10:03

【摘要】：风力发电作为清洁能源的一种在日益紧张的能源危机的情况下应运而生。为降低风力发电的投资成本，利于维护保养，液压式风力发电系统对改善此点有重要的意义，但由于外界风能的可变性，为保证发电的稳定性，必须对液压系统进行控制研究，液压系统的完善将加快风力发电产业的发展速度，并将开辟风力发电行业的新纪元。本文首先介绍了国内外风力发电的现状，世界范围内风力研究情况和我国风力发电的巨大优势。其次，对风力发电技术进行了研究，讨论了液压技术在风力发电中的应用，，根据目前风力发电的技术问题，提出了液压风力发电系统。再次，对液压风力发电系统进行设计，以AMESim软件为开发平台，以各元件的物理模型为依据，先对数学模型进行分析设计，再逐步建立元件的AMESim模型，并建立整体的系统仿真模型。最后，通过系统仿真模型，主要针对液压风力发电系统稳定性做出仿真研究，详细分析了影响稳定性的环节，并对各环节加以控制，实现对整个液压系统马达转速的稳定输出，从而实现发电电压的稳定输出，使分析操作简单快捷，并利用PID控制技术，将仿真结果进行对比，验证了仿真的可行性，得出了影响系统稳定性的因素和解决的方法，对以后的进一步研究提供了理论依据。
[Abstract]:Wind power generation as a clean energy in the increasingly tense energy crisis emerged. In order to reduce the investment cost of wind power generation and facilitate maintenance and maintenance, hydraulic wind power generation system is of great significance to improve this point. However, because of the variability of external wind energy, it is necessary to study the control of hydraulic system to ensure the stability of power generation. The improvement of hydraulic system will speed up the development of wind power industry and will open a new era for wind power industry. In this paper, the current situation of wind power generation at home and abroad, the research situation of wind power in the world and the great advantages of wind power generation in China are introduced. Secondly, the technology of wind power generation is studied, and the application of hydraulic technology in wind power generation is discussed. According to the technical problems of wind power generation at present, the hydraulic wind power generation system is put forward. Thirdly, the hydraulic wind power system is designed. Based on the AMESim software and the physical model of each component, the mathematical model is first analyzed and designed, then the AMESim model of the component is established step by step. And the whole system simulation model is established. Finally, through the system simulation model, the stability of the hydraulic wind power system is simulated, and the links that affect the stability are analyzed in detail, and each link is controlled to realize the stable output of the motor speed of the whole hydraulic system. Thus, the stable output of generation voltage is realized, and the analysis operation is simple and fast. The simulation results are compared by using PID control technology, and the feasibility of simulation is verified, and the factors affecting the stability of the system and the solution are obtained. It provides a theoretical basis for further research.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137

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