摘要随着不可再生能源的消耗，可再生能源已经越来越受到各国的重视。风能作为一种可再生的清洁能源，具有取之不尽用之不竭和不会对环境造成污染的优点。风力发电正在逐步替代火力发电。由于风能不稳定不能存储，传统的风电机组对系统没有贡献转动惯量，其并网对电网频率的影响较大。为了提高风电的普及率，需要研究风电机组对电网频率控制的影响。变速恒频风力发电机可以提高风能的获取和转换效率，非常适合风电机组的运行，是国际上风力发电的主要机型。因此，研究变速恒频风电机组参与电网一次调频的控制方法研究具有十分重要的现实意义。

本文首先介绍了一次调频的基本原理，然后介绍了变速恒频机组参与电网一次调频的方法，然后深入研究了如何利用变速恒频机组隐含惯量参与电网调频，接着搭建仿真模型，用Matlab/Simulink进行仿真，最后对仿真结果进行分析，论证控制方法的可行性和有效性。65006

毕业论文关键词：一次调频 变速恒频 风电机组 稳定性

毕业设计说明书（论文）外文摘要

Title  The Control Strategy Study of Wind Turbines Participation in Primary Frequency Regulation                                                                                 

Abstract With the consumption of non-renewable energy, renewable energy has been gaining national attention. Wind energy as a renewable clean energy, has the advantages of the inexhaustible and does not pollute the environment, and is replacing coal-fired power gradually. Due to unstable wind energy can’t be stored, the traditional wind turbine system does not contribute to the moment of inertia, and that will influence the grid frequency too much. In order to improve the penetration of wind power, we need to study the impact of wind turbines on the grid frequency control. variable speed constant frequency （VSCF） wind turbine can improve the wind energy acquisition and conversion efficiency, is very suitable for the operation of the wind turbine, and is the international wind power models. Therefore, the study of VSCF wind turbine in grid primary frequency control method has a very important practical significance.

This paper introduces the basic principles of primary frequency, and then introduced the VSCF unit to participate in the primary frequency of the grid, and then in-depth study of how to use the VSCF unit implied inertia involved in the grid frequency control, and then build a simulation model using Matlab / Simulink simulation, analysis, and finally the simulation results demonstrate the feasibility and effectiveness of the control method. 

Keywords  ：Primary Frequency Regulation  Variable—speed Constant—frequency  Wind Turbines  Stability

目录

1 绪论 1

1.1 课题背景 1

1.2 常用的风电机组及其介绍 2

1.3 风力发电的基本原理及发展现状 2

1.3.1 风力发电的基本原理 2

1.3.2 国外风力发电的发展现状 4

1.3.3 国内风力发电的发展现状 5

1.4 风力发电的并网对电网的影响 6

1.5 变速恒频风电机组参与电网一次调频 6

1.5.1 变速恒频风电机组参与一次调频的研究意义