matlab含风电的电力系统无功功率补偿研究

摘要随着风电技术的进步以及国家对新能源政策的支持，我国的风力发电事业已取得了长足的发展。然而大规模风电并网会对电力系统的稳定运行造成重大影响，尤为突出的问题是风电并网会引起电力系统无功的变化并影响着系统电压，严重时甚至会导致电压崩溃。因此，研究大规模风电并网系统的无功补偿问题具有重要的现实意义。本文研究的主要内容如下：50571
(1)分析双馈式风力发电机组的运行原理、数学模型及其有功、无功特性。
(2)总结静态电压稳定性分析的方法并对无功/电压的控制措施进行研究，为后续的无功补偿策略提供理论支持。
(3)分析风电系统的接入对电网电压稳定性的影响。
(4)研究风电系统的无功补偿方式，并且搭建基于的仿真模型，分别用、补偿风电场无功，分析其对风电场电压的支撑能力。
毕业论文关键词：大规模风电并网，无功补偿，，，
Abstract
With the advancement of wind power technology and national policy support for new energy resources, in our country, the wind power generation enterprise has obtained the development by leaps and bounds. However, large-scale wind power integration brings about significant influence for the stable operation of power system, especially the problems is the integration of wind farm can cause reactive power change, and then affects voltage stability, in severe cases even leads to voltage collapse. Therefore, this paper studies on reactive power compensation of large-scale wind power integration, which has important practical significance. The main contents this paper studies are as follows:
(1)To analyze the Doubly-fed induction generator (DFIG) operation principles, mathematic model and the active power, reactive power characteristics.
(2)To study on the method of the static voltage stability analysis, reactive power/voltage control measures and put forward theory support for subsequent reactive power compensation strategy in this paper.
(3)To analyze the influence on voltage stability after wind farm being connected to power grid.
(4)To study on reactive power compensation of wind power system and set up the simulation model based on MATLAB, compensate the reactive power using SVC and STATCOM, analyze the voltage support ability of the two devices on wind farm.
Keywords: large-scale wind power integration, reactive power compensation, SVC, STATCOM, MATLAB
目录
摘要    I
Abstract    II
第1章绪论    1
1.1选题的背景及意义    1
1.2国内外风电发展的状况    1
1.2.1世界风电发展的状况    1
1.2.2国内风电发展的状况    2
1.3课题国内外研究的状况    4
1.4本文的主要工作    5
第2章风电机组模型及静态电压稳定性分析的理论    6
2.1风力发电系统的组成和特点    6
2.2风电并网机组的分类    6
2.2.1采用鼠笼式异步发电机的普通风电机组    6
2.2.2采用永磁同步发电机的直驱式变速恒频风电机组    8
2.2.3采用双馈式异步发电机的变速恒频风电机组    8
2.3 双馈式风电机组的数学模型    8
2.3.1双馈式风电机组变速恒频的原理    8
2.3.2双馈式风力发电机的静态特性    10
2.3.3双馈式风力发电机的动态特性    11
2.3.4双馈式风电机组的有功功率特性    12
2.3.5双馈式风电机组的无功功率特性    14
2.4静态电压稳定性分析    15
2.4.1静态电压稳定性指标    15 matlab含风电的电力系统无功功率补偿研究:http://www.751com.cn/zidonghua/lunwen_38904.html