摘 要 最近几年，随着电力市场的快速发展，在电力系统中运用了很多 FACTS (Flexible Ac Transmission System) 装置，电网的输电效率、稳定性方面有了很大的提高，但 FACTS 装置间也有着负的交互影响，而且系统的稳定性会受到这些负的交互影响的威胁。所以，分析这些交互影响存在的原因，找出决定这些交互影响的参量并且对其作出分析，不但有理论意义，而且有很大的实际意义。 通常来说，电网中的 FACTS 装置都是在 SISO 基础上设计的，研究表明，在电网中多个 FACTS 装置之间会存在着交互影响，并且这些交互影响会使FACTS 控制失衡，因此就需要对这些交互影响的性质进行充分的分析，以便于很好地解决这些负交互影响给电力系统造成的副作用， 并且对与其有关的各种电气参量的关系进行研究。 本篇论文主要对含 SVC 和 TCSC 的多机电力系统进行建模并进行时域仿真分析，主要内容如下： 第一部分主要对 FACTS 技术以及主要的 FACTS 装置作了简要的介绍。 第二部分详细介绍了 SVC 和 TCSC 的结构、工作原理以及数学模型，并建立了含有SVC 和TCSC 的多机电力系统模型。 第三部分通过时域仿真得到仿真波形图，并对 SVC 和 TCSC 之间的交互影响进行分析，并最后进行总结。 37749
毕业论文关键词：柔性交流输电，SVC，TCSC，交互影响
Abstract In recent years, with the rapid development of Chinese electricity market, it used a lot of FACTS (Flexible Ac Transmission System) control devices in power system, the operating efficiency and stability of the power network has been greatly improved, but there may be negative interactions between the FACTS control devices, and the stability of the power system will be threatened by the negative interactions. Therefore, the analysis of the possible reasons for the existence of these interactions, to find the decisive parameters of these interactions and to analyze them, not only has theoretical significance, but also has great practical significance. In general, the FACTS control devices in power network are designed on the basis of SISO, according to the study, there are interactions between FACTS control devices in power network, and the impact of these interactions can make control imbalance of FACTS, so it is necessary to analyze the nature of these interactions sufficiently, in order to find a good solution to the side effects caused by these negative interactions to the power system, and to research the relationship between various electrical parameters which is related to it. This paper focuses on building a model of the multi-machines power system which includes SVC and TCSC, and making time domain simulation analysis, the main contents are as follows: In the first part, it makes a brief introduction to the FACTS and the main FACTS devices. In the second part, it describes the structure, working principle and mathematical model of SVC and TCSC, and establishes a multi-machines power system model which includes SVC and TCSC. In the third part, it obtains simulation waveform by makes time domain simulation, and analyzes the interaction between SVC and TCSC, and makes a summary in the end.
Keywords: FACTS, SVC, TCSC, interaction
目录
摘要..I
AbstractII
1绪论.1
1.1柔性交流输电技术(FACTS).1
1.1.1FACTS的定义1
1.1.2FACTS产生的背景.1
1.1.3FACTS研究的目的和意义2
1.1.4FACTS研究的数学模型.3 电力系统FACTS装置的交互影响问题研究:http://www.751com.cn/zidonghua/lunwen_36594.html