因此，本文主要研究了UPFC对电力系统暂态稳定性和暂态稳定预防控制的影响和作用。
So, the influence of UPFC in power system transient stability and transient stability preventive control has been researched in this paper.
根据不同的干扰程度，分析研究了系统的静态稳定性和暂态稳定性。
The static and transient stability of the power system are analyzed based on the degree of excitation.
对大型风电场接入后的电力系统暂态稳定性进行了研究。
Impact of large scale wind farm integration on power system transient stability is studied in this paper.
传统的考虑暂态稳定约束的极限传输容量(TTC)研究采用确定性分析方法。
Conventional study on TTC (total transfer capacity) with transient stability constraints is performed by deterministic analysis methods.
目前，关于该问题的研究热点集中于暂态稳定约束条件的处理和各种高效优化算法的引入。
At present, the research hotspots focus on the disposal of transient stability constraints and the introduction of highly efficient optimization algorithms to solve this problem.
算例系统的计算结果表明。所提出的模型和算法是正确而有效的，为研究FACTS的暂态稳定性和控制作用提供了有效工具。
Examples of test system show that the proposed model and method are correct. This provides an effective tool for studying the transient stability and control strategy of FACTS.
广域同步测量系统在电力系统的逐渐普及，为暂态稳定分析和控制研究提供了新的契机。
The widespread application of wide Area Measurement system (WAMS) provides a new momentum for the research of the analysis and control of power system transient stability.
研究联络线故障水平对电力系统暂态稳定性的影响，对于电力系统的安全稳定评估与校核，以及暂态稳定预防控制都有着重要意义。
The research on the fault level of tie line is of significance for the security and stability evaluation of power system as well as the preventive control of transient stability.
因而在我国研究电力系统暂态稳定性的快速估计和紧急控制的理论具有迫切和现实的意义。
Therefore, there will be great need for studies of fast estimate of transient stability and emergent control of power systems.
研究结果表明，该控制策略实现了励磁控制与汽门调节的动态解耦，应用该方法可显著提高电力系统的暂态稳定性。
The simulation result shows that the control strategy can realize the dynamic decoupling control of excitation and valve and so it can considerably increase the dynamic stability of power system.
结合对我国电力市场发展趋势的研究，基于风险理论，本文将就系统安全特别是暂态稳定的评估、决策和安全的市场运作问题进行分析讨论。
Combining with the research on China power market trends and based on risk, thesis will specially discuss transient security assessment, decision on security and market operation of security.
本文深入研究暂态稳定预测的各种方法。
In the paper, methods for online transient stability prediction are researched.
对中国电力科学研究院开发的PSASP程序与美国PTI公司开发的PSS/E 程序的暂态稳定计算数学模型进行了分析比较。
The mathematical models for transient stability calculation in PSASP and PSS/E respectively developed by China Electric Power Research Institute and PTI Inc. , in USA are compared and analyzed.
其次，通过对发生单重和多重故障时的暂态稳定计算，研究了作为多回直流受端系统的广东电网在发生直流双极闭锁故障时的运行稳定性问题。
Second, by means of the transient stability calculation for single and multiple faults, the stability of Guangdong power grid as a multiinfeed AC/DC power system is studied.
对如何借助人工神经网络理论在线实施利用改构提高电力系统暂态稳定水平进行了研究。
An artificial neural nets based on-line implementation to enhance power system transient stability by reconstruction is studied.
早期直接法将线性度较好的暂态能量裕度用于求取暂态稳定极限，从而开辟了对这一领域的研究。
The early works of direct methods utilized the quasi-linearity of transient energy margin (TEM) to approximate the transient stability limits, which opened an era of this area.
电力系统安全运行涉及静态安全性和暂态稳定性，本文以暂态稳定性为例进行了研究。
The secure operation of power system relates to static security and transient stability, and the transient stability is taken as an illustrative condition in this dissertation.
持续降雨条件下，边坡浅层所形成的暂态水头变化对边坡稳定性具有重要的影响，一直是水工渗流研究领域内的热点和难点。
Effect of transient head change under persistent rainfall on the stability of geo-slope is obvious, and it is always the focus and difficult point in geotechnical engineering or related fields.
为充分发挥含PMU的广域量测系统（W AM S/PMU）在电力系统安全预警、保护与控制中的作用，研究了节点相角-电压空间上保证暂态稳定的动态安全域的边界性质。
To make full use of the WAMS/PMU in the security monitoring, protection and control of power system, PDSR in phase angle-voltage space was studied.
可信域的研究对于评价电力系统暂态稳定域近似边界的有效范围具有重要作用。
The study of credible region plays an important role to assess the valid range of the approximated transient stability boundary for power system.
研究表明，信号调制型SVC综合非线性控制器，能够给系统提供较强的阻尼，从而提高了整个交直流混合系统的暂态稳定性。
The results show that the signal-modulating type synthetical nonlinear SVC controller can provide higher damping to the system, so as to enhance the transient stability of the AC and DC hybrid system.
发电机同调机群识别的研究对动态等值、暂态稳定分析计算、为改进系统行为的控制设备的设计、操作和整定提供必要数据等方面有极其重要的意义。
Research of recognizing coherent generator groups in power system is important to dynamic equivalence, transient stability calculation and provides essential data for improving system's behavior.
研究了改善异步机风电场暂态电压稳定性的措施。
The measures to enhance transient voltage stability of induction generator based wind farm are studied in this paper.
从第四章开始主要研究具有可控串联补偿功能的故障限流器(FCL)对改善电力系统暂态稳定性的影响。
Begin with chapter 4, the influence of Fault Current Limiter (FCL) with controllable series compensation on improving transient stability of power systems is described.
含暂态稳定约束的电力系统最优潮流是电力系统暂态稳定预防控制的重要研究课题。
Optimal power flow with transient stability constraints in power systems is an important research subject of power system transient stability preventive control.
研究了具有内部参数不确定及外部扰动的单机无穷大电力系统的暂态稳定性问题。
The transient stability problem is studied for a single machine-infinite bus system with internal parameter uncertainties and external disturbances.
计算机仿真研究表明，该控制方式不仅可以有效地改善电力系统的动态响应，而且可以显著地提高系统的暂态稳定极限。
Simulation performed on a 6-machine system shows that the proposed controller can not only improve the dynamic performance of the power system, but also can enhance the system transient stability.
第七章，研究了考虑输入控制量幅值约束的汽轮机调速系统的暂态稳定性问题。
In chapter 7, for the turbine speed governor system with input constraints, the transient stability problem is addressed.
第七章，研究了考虑输入控制量幅值约束的汽轮机调速系统的暂态稳定性问题。
In chapter 7, for the turbine speed governor system with input constraints, the transient stability problem is addressed.
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