摘 要当下， 电力工业的迅猛发展使着社会经济等各方面的发展对于电力资源依赖的增强以及其与电力系统网络的快速发展息息相关， 而且要求电力网络得安全稳定运作得经济性和可靠性要求也越来越高。 而电力系统在受到如电动机车的冲击等扰动后所产生的对于系统本身的功角稳定性的影响， 已成为电力行业所共同关注的问题。本文在基于IEEE9 节点标准系统上， 首先建立简单的暂态稳定研究的数学模型， 应用小干扰法与等面积法则对单机无穷大系统进行功角稳定性问题的简单分析，然后利用电力部门常用的“BPA 电力系统分析程序”，通过BPA 软件仿真进行潮流仿真计算与暂态稳定仿真计算， 对比验证了该系统分别在各种短路故障下以及切除短路故障之后的故障后动态行为。从理论上研究提高电力网络静态稳定性与暂态稳定性得措施， 而且对其中一些进行仿真，验证其对于电力网络运行时得影响。最后通过 BPA软件仿真分析了暂态情况下的极限切除故障的时间，根据系统运行状态需要，对系统的运行提供更好的指导。37732
毕业论文关键词： 功角稳定；BPA 仿真；数学建模；小干扰法；等面积法则AbstractThe moment, the rapid development of power industry so that thesocial and economic development in areas such as enhancement ofresource dependency for electricity and its power system is closelyrelated to the rapid development of the network, but also for the economyand reliability requirements of safe and stable operation of the powersystem is also higher and higher. The power system is affected, such asthe impact of motor vehicles and the like after the disturbance generatedby the system itself, angle stability, the power industry has become acommon concern.In this paper, based on standard systems IEEE9 node, first establish.A simple mathematical model of transient stability modle studies simple.A simple analysis of the application of small interfering rule of law andequal-area single machine infinite bus system angle stability problem, andthen use the power sector common "BPA power system analysisprogram," through software emulation BPA power flow and transientstability simulation Simulation , compared to verify the system in avariety of short-circuit fault and short-circuit fault after fault removalwere after dynamic behavior.Improve system stability and transient stability of power staticmethods from the theoretical analysis, simulation and some of thesemethods, to verify their impact on the system. Finally, BPA softwaresimulation analysis of the critical clearing time transient fault case,according to the system status when necessary, operation of the system toprovide better guidance.
Key word: Angle stability BPAStimulationMathematical Modeling Small interfering ActEqual area criterion
目录
摘要.I
AbstractII
1绪论.1
1.1引言.1
1.2电力系统功角稳定性简单介绍1
1.3功角稳定性研究的数学模型.3
1.4本文主要工作.4
2基于BPA软件的电力系统静态稳定性分析.6
2.1简单系统的静态稳定分析6
2.2用小干扰法分析静态稳定8
2.3应用BPA软件的小干扰法仿真11
2.3.1BPA软件功能介绍.11
2.3.2小干扰法仿真.12
2.4提高电力系统静态稳定性措施.20
2.4.1装设自动调节励磁装置.20
2.4.2减小元件电抗.21
2.4.3改善系统的结构和采用中间补偿设备.21
2.5本章小结.21
3基于BPA软件的电力系统暂态稳定性分析.21
3.1简单系统的暂态稳定分析22
3.2应用BPA软件的暂态稳定仿真.24
3.2.1BPA软件进行暂态稳定分析过程简介.24
3.2.2算例仿真分析26
3.3提高电力系统暂态稳定性的措施34
3.3.1故障的快速切除和自动重合闸装置的应用.34
3.3.2提高发电机输出的电磁功率34 电力系统功角稳定性的研究+BPA文件:http://www.youerw.com/zidonghua/lunwen_36579.html