摘要风能作为一种蕴含巨大潜力的清洁可再生能源，在当今资源短缺，环境压力日益严重的今天，其开发和利用成为电力领域的研究热点，具有很强的现实意义。本文主要对直驱式风力发电系统的最大功率点跟踪控制策略进行研究，目的是提高风能的使用效率，为我国的风力发电技术研究做出参考。65275

本文通过介绍风力发电的背景和发展历程指出研究风力发电技术的必要性。通过介绍世界范围内风力发电的现状以及其发展趋势，指出本文的研究意义。文中从空气动力学的角度研究了风力发电机的输出特性和风能利用系数，为后续的研究打好基础。同时，指出风力发电技术的关键在于最大功率点跟踪控制，只有使风力发电机始终工作在最大功率点，才能提高风能的利用率，使得风力发电机组运行稳定。

本文还介绍了最大功率点跟踪控制的原理和国内外的研究现状，研究了目前国内外常用的最大功率点跟踪控制算法，分析其各自的优劣，为研究新的最大功率点跟踪控制算法做好铺垫。文中通过对爬山法、叶尖速比法等传统最大功率点跟踪控制技术的研究和分析，提出一种新的最大功率点跟踪控制技术----自适应面积法。这种方法能够克服爬山法和电导增量法的不足，提高最大功率点跟踪的精度和响应速度。

最后，本文利用matlab的M函数编辑器，先对爬山法和叶尖速比法进行建模仿真，得到其跟踪最大功率点的图像。然后对自适应面积法进行仿真建模，得到基于自适应面积法的最大功率点跟踪图像。通过与基于爬山法和叶尖速比法的最大功率点跟踪仿真图像进行对比，从响应时间和波形的稳定性两个方面，体现自适应面积法的优点。

毕业论文关键词：  风力发电  爬山法  叶尖速比法  最大功率点跟踪

毕业设计说明书（论文）外文摘要

Title    Adaptive wind maximum power point tracking control                     

Abstract

Wind of huge potential as a clean and renewable energy, in today's shortage of resources, environmental pressures increasingly serious today, the development and utilization of electricity become hot research field, has a strong practical significance. This paper focuses on direct-drive wind power system's maximum power point tracking control strategy study aimed at improving efficiency in the use of wind energy for China's wind power technology research to make a reference.

This paper describes the background and wind power development process pointed out the necessity of wind power technology. Through the introduction of wind power worldwide situation and its development trends, points out the research significance. Article from the perspective of the aerodynamics of wind turbines and wind energy utilization coefficient of output characteristics, to lay the foundation for subsequent research. At the same time, pointing out that wind power technology is the key to maximum power point tracking control, only the wind turbine always work at the maximum power point, in order to improve the utilization of wind energy, making wind turbines stable operation.

This article also describes the maximum power point tracking control theory and research status at home and abroad to study at home and abroad used the maximum power point tracking control algorithm to analyze their respective advantages and disadvantages, the study of new maximum power point tracking control algorithm to do good bedding.