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摘要当今社会人口的增加和经济的发展，引起了全球很多国家和地区对能源安全、环境保护以及促进社会可持续发展的关注。由于风能发电这一行业的不断发展进步，社会上逐渐出现了大型风电场以及风电场群，因此风能发电的特殊性能致使配电网随之也出现了众多的不良影响，从而限制了含大规模风电的配电网系统的发展。本篇文章的主要任务是研究分析含大规模风电的配电网系统的电压稳定特性，需要做的工作内容有：39870
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首先，针对风能发电场的基础理论模型进行阐述。分析风速和空气动力学的模型构造及其组成部分，接着分析研究尾流效应理论。然后分别阐述异步和双馈发电机的基本理论特性，分析研究风电场等值问题，为对含大规模风电的配电网电压稳定特性进行分析研究提供理论依据。
然后，使用基于MATLAB软件中的PSAT软件建立含大规模风电的配电网系统并进行时域仿真。通过仿真出来的结果分析，阐述含不同类型的发电机组的风电场接入配电网后对系统电压稳定性造成的不良影响，并简单的分析影响系统电压稳定特性的一些主要原因。
毕业论文关键词: 风电并网； 风力发电机； PSAT； 电压特性
Abstract Today's population growth and economic development caused many of the world's countries and regions of energy security, environmental protection and promote social sustainable development concerns. As the industry for wind power generation is constantly developed and progress, society gradually emerged in the large-scale wind farm and wind farm group. So the special properties of wind power enable distribution network have appeared thereupon many adverse effects, so as the construction and development is restricted of large-scale wind farm. The main task of this article is to study the voltage stability of distribution network with large wind power. The main contents are as follows:
First of all, according to the theory of wind farms the foundation of described model is analyzed. Structure analysis of wind speed and air dynamics model and its component, and then the wake effect theory is analyzed. And then expounds the basic theory of induction generator and doubly-fed generator characteristics, analysis and study of wind farm equivalent problem. To contain the voltage stability of the distribution characteristics of large-scale wind power provides the theory basis for analysis and research.
In the end, based on MATLAB software PSAT is introduced and then use the software PSAT distribution system of large-scale wind power is established and time domain simulation. Through the comparative analysis of the simulation results, paper containing different types of turbine wind farm connected to the distribution network voltage stability of system caused by the adverse effects, and simple analysis of system voltage stability characteristics of is impacted of some of the main reasons.
Keywords: Wind power synchronization; Wind turbine generator; PSAT; Voltage characteristic
目 录
摘 要 I
Abstract II
1 绪论 1
1.1 课题的背景 1
1.1.1 传统能源与可再生能源 1
1.1.2 世界风力发电发展现状 1
1.1.3 我国风力发电发展现状 3
1.1.4 基于发电机组的风电场给配电网系统带来的问题 4
1.2 本文的研究意义 4
1.2.1 风电机组及其特性 5
1.2.2 风电并网的配电网电压特性问题 6
1.3 本文的主要工作 6
2 风电场数学模型 7