负荷模型建立的恰当与否往往对电力系统仿真计算结果产生重要影响,有时甚至是质的结论性的影响。
Proper modeling of the power load is a crucial factor, sometimes even a deciding factor, influencing the results of the simulation computation of power system.
电力负荷是电力系统的重要组成部分,负荷模型已经成为制约电力系统仿真计算结果准确和可信赖程度的关键。
Power load is the important part of power system. Load modeling has become a crux factor, which is restricted veracity and trustiness of power system simulation results.
目前大多数电力系统仿真分析工具缺少对继电保护模型的系统化描述,无法真实完全的反映继电保护元件的控制规律。
Most of power system's simulation tools have not the systematic model of relay system and can not response the control rules of relay system truly and completely.
图形用户界面(GUI)是指在应用程序中以图形化的界面实现人机交互的一种新颖计算机技术。在电力系统仿真中,这一技术的应用已越来越广。
Graphics User interface (GUI), a new computer technique, is widely used in power network simulation to realize man machine interaction with graphics interface in application programs.
随着新技术、新设备的广泛应用,由于全电力推进的船舶电力系统与陆地电力系统的差别,需要对全电力推进的船舶电力系统进行建模与数字仿真。
With the broad application of advance technology in ship power system, and its differences from the terrestrial power system, it is necessary to build up the model and simulation of ship power system.
作者研究了在周期性负荷扰动下电力系统安全盆的分形侵蚀,通过数值仿真给出了不同的扰动值对安全盆的侵蚀程度。
The fractal erosion of safe basin in a power system disturbed by a periodical load is studied, and the erosion extent induced by different disturbance values is numerically analyzed.
计算机仿真结果表明,采用模糊变结构附加励磁控制方法可以提高鲁棒性、解决高频抖动问题,并能够很好地改善电力系统的小干扰稳定性。
Computer simulation shows that the control of fuzzy variable structure can increase the robustness, solve the problem of shiver at high frequency, and improve the stability of small disturbance.
阐述了输电线电磁暂态仿真在现代电力系统分析中的作用和意义,对研究内容和方法进行了介绍。
The function and significance of electromagnetic transients simulation for transmission line in modern power system are clarified and the research contents and methods are introduced.
阐述了其基本概念、特点和实现方法,讨论了将COM技术应用于电力系统数字仿真的元件建模中。
The concept, characteristics and realization of COM are introduced, and its application in the element modeling for the digital simulation of power system is discussed.
二区域四机的仿真结果证明施加这种控制策略的电力系统稳定器抑制振荡能力更强,进入稳态时间更短。
Simulation results in two-area four-machine proves that power system stabilizer under this strategy has stronger capacity of checking shocks and becomes stable more quickly.
提出一种用于含风能和能量储存设备的小型孤立电力系统(SIPS)发电容量充裕度评估仿真方法。
A simulation method is proposed for the generating capacity adequacy evaluation of small isolated power systems (SIPS) including wind energy and energy storage facilities.
采用常规的电力系统元件模型和参数进行数值仿真所得的频率变化曲线与实测曲线偏差较大。
As for the numerical simulation by traditional power system component models and parameters, the obtained dynamic frequency curves evidently diverge from measured ones.
虚拟现实技术在远程教育、虚拟购物、电力系统、飞行仿真、数字化地球和游戏娱乐等领域都有广泛的应用。
Virtual reality has been widely used in the fields such as distance learning, virtual shopping, electric power system, flying simulation, digital earth, etc.
仿真研究表明:所论模糊励磁控制器可以提高发电机的电压控制精度和电力系统的稳定性。
The simulating studies indicate the proposed excitation controller can improve the accuracy of voltage control and strengthen the stability of electric power systems.
以往的电力系统暂态稳定性的分析是针对事故前的一种给定注入进行事故过程的动态仿真或用暂态能量函数的方法进行的。
The transient stability of power system is used to be analyzed for a given pre-fault injection by using transient simulation method or transient energy function method.
采用电力系统综合程序不同精度的同步电机数学模型,基于潮流进行暂态稳定仿真计算。
Process transient stability simulation calculation based on power flow which USES the different accuracy of synchronous generator mathematical model in power system comprehensive program.
通过在6机22母线系统的仿真结果表明,该控制器能提高电力系统的暂态稳定性和动态性能。
The simulation results in a 6-machine 22-bus power system demonstrate that the controller can greatly improve transient stability and dynamic performance of power systems.
超导电力设备是超导电力系统的重要组成部分,而仿真分析一直是设备开发的重要手段之一。
The superconductive electrical equipment is an important part of superconductive electric power system and the simulation analysis is one of the main means in equipment development.
针对电力系统并行仿真算法中的分块对角加边模型提出了一种新的交替迭代解法。
A new alternate iteration method based on block bordered diagonal model for parallel computation in simulation of electric power system dynamics is presented in this paper.
基于大型电力系统分析软件NETOMAC,提出了机电暂态和电磁暂态混合时域仿真法。
A hybrid time-domain simulation method integrating electromagnetic transient simulation and electromechanical transient simulation based on large power system analysis software NETOMAC is proposed.
文章在电力系统同调性概念的基础上,通过数字仿真获取发电机的时间响应曲线,定义了基于相关性原理的发电机同调指标。
According to the power system coherency and the swing curves of the disturbed generators, apply the data mining and the principle of the correlation, define the indicator for coherence.
仿真结果表明,所设计的励磁控制器在提高电力系统稳定性以及发电机电压的稳定性方面得到满意的控制效果。
The simulation results show the designed controller can achieve the satisfactory result on the stability of the power system and the generator output voltage.
与变电站综合自动化系统共同组建的变电站综合自动化仿真培训系统,可在我国电力系统中推广应用。
Combined it with substation integrated automation system, the substation integrated automation simulation and training system has the wide applicative prospect in the power system of our country.
仿真结果表明所设计的模糊电力系统稳定器比传统的电力系统稳定器能更有效地抑制系统低频振荡。
The simulation results indicate that the designed fuzzy power system stabilizer is better than the conventional fuzzy power system stabilizer in suppressing the low-frequency system swing.
仿真计算结果表明,采用考虑配电网络综合负荷模型与电力系统当前采用的综合负荷模型的传输功率极限比较接近。
Simulation results showed that the comprehensive load model considering the distribution network with the power system of comprehensive load model using the ultimate closer to the transmission power.
仿真结果表明该励磁控制器有效地提高了船舶电力系统动态过程的质量和稳定性能。
The simulation results show that the new excitation controller can improve not only the quality of the dynamic process but also the stability performance of the marine power system.
应用仿真软件EUROSTAG的模块自定义功能建立了带有超速保护的调速系统模型,通过仿真研究了超速保护控制对电力系统安全稳定的影响。
Using the software EUROSTAG, overspeed protection control model was set up and the effect of OPC on power system security and stability was researched.
摘 要简述电力系统动态电压稳定时域仿真分析的方法、步骤及其优缺点。
This paper makes a brief introduction to the method, procedures, advantages and disadvantages of time domain simulation analysis on dynamic voltage stability of electric power system.
另外,论文所建立的三峡电力系统的仿真模型对未来三峡电力系统运行方式以及可能存在的问题的进一步深入分析奠定了基础。
On the other hand, the constructed simulation models of Three Gorges power system lays foundation for father analysis of operation modes and possible problems of future Three Gorges power system.
电力系统动态数字实时仿真已成为规划电力系统,设计与检验电力系统控制、保护以及调度设备的主要工具。
The dynamic and digital real-time simulation of power system is believed as an indispensable tool for power system planning, protective and control devices designing and testing.
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