电磁暂态,electromagnetic transient
1)electromagnetic transient电磁暂态
1.A newelectromagnetic transient simulation approach accounting for impulsive corona and frequency-dependence line parameters;一种考虑冲击电晕及线路参数频变的电磁暂态仿真方法
2.To realize accurate testing of the control and protection systems,the transients in a high power electronic system are classified aselectromagnetic transients,switching transients,and electro-thermal transients.为实现大功率电力电子装置特性的全面物理测试,将装置的动态过程划分为装置级电磁暂态过程、器件级开关暂态过程和热动态过程,并对这3个动态过程进行实时交互计算。
3.The dynamic phasor model is based on the time-varying phasor, which not only breaks the quasi-stationary assumption, but also overcomes the maximum step size constraint of regular transmission line, so it can be used to analyze the fastelectromagnetic transient phenomena at a higher speed.传统的机电暂态模型由于建立在"准稳态"假设基础之上,因此不能用来仿真变化迅速的电磁暂态过程,而电磁暂态模型,虽然能准确反映电磁暂态过程,但由于仿真步长很小,仿真速度受到限制,不适合用来仿真大型电力系统。
英文短句/例句
1.Electromechanical-Electromagnetic Transient Digital Hybrid Simulation in Power System电力系统机电暂态和电磁暂态数字混合仿真
2.ELECTROMAGNETIC TRANSIENT ANALYSIS OF MULTI STEP OVERVOLTAGE PROTECTION CIRCUIT FOR AC MAINS电源多级过电压保护的电磁暂态分析
3.Progresses on Algorithm of Electromagnetic Transient Simulation for Electric Power System电力系统电磁暂态仿真算法研究进展
4.Study on Electromechanical and Electromagnetic Transient Performance of Static Synchronous Series Compensator;静态同步串联补偿器机电暂态及电磁暂态特性研究
5.Study on Power System Electromechanical Transient and Electromagnetic Transient Hybrid Simulation;电力系统机电暂态和电磁暂态混合仿真技术的研究
6.Study of Power System Electromagnetic Transient and Electromechanical Transient Real-time Hybrid Simulation;电力系统电磁暂态与机电暂态混合实时仿真的研究
7.Implementation Electromechanical and Electromagnetic Hybrid Simulation for Power System Using PSCAD/EMTDC;基于PSCAD/EMTDC的电力系统机电暂态与电磁暂态混合仿真
8.Electromechanical and Electromagnetic Hybrid Simulation for Power System with Static Var Compensator;含静止无功补偿器电力系统机电暂态和电磁暂态混合仿真
9.The Study of Hybrid Simulation of Electromagnetic and Electro-mechanic Transients of Power System;电力系统电磁暂态与机电暂态程序的混合仿真研究
parison of Electromagnetic Transient Algorithms and Nonlinear Model Research电磁暂态算法比较及非线性模型研究
11.Automated electromagnetic transient simulation using ATP基于ATP的电磁暂态自动仿真程序
12.An Investigation on Transients in the Power Networks Containing Nonlinear Inductances;涉及非线性电感电力网络电磁暂态的研究
13.Technology of Interfaces for Hybrid Simulation of Power System Electromagnetic-electromechanical Transient Process电力系统机电—电磁暂态混合仿真接口技术
14.Electromagnetic Transient Simulation and Test and Analysis of Wu Hai Electric Network Based on DDRTS (Digital Dynamic Real-Time Simulator);基于DDRTS的乌海电网电磁暂态仿真测试与分析
15.The AC/DC Electromagnetic Transient Simulation Based on Object-oriented面向对象的交直流电力系统电磁暂态仿真
16.A Novel Electro-Magnetic Transient Analysis Method for Distributed Parameter Transmission Lines分布式参数输电线路电磁暂态分析新方法(英文)
17.The Calculation and Research of Electromagnetic Transient Simulation for Frequency-dependent Transmission Lines;频变传输线的电磁暂态仿真计算与研究
18.Analysis of Complex Electromagnetic Transient Leading to the Mal-operation of Power Transformer Differential Protection变压器差动保护误动原因的复杂电磁暂态分析
相关短句/例句
electromagnetic transients电磁暂态
1.The function and significance ofelectromagnetic transients simulation for transmission line in modern power system are clarified and the research contents and methods are introduced.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。
2.On the basis of the theory of MTL (Multiconductor Transmission Line),the approach of analysis in frequency domain and the technique of Hosono s numerical inverse Laplace transform,a method for the accurate computation of long line faultelectromagnetic transients is presented.基于多传输线理论、频域分析方法和Ｈｏｓｏｎｏ的数值拉氏反变换技术，提出了长输电线路任意短路的电磁暂态计算新方法。
3.This paper presents a model of nonlinear elements for the simulation ofelectromagnetic transients in power systems.本文介绍一种电力系统电磁暂态仿真非线性元件算法。
3)IGBT electromagnetic transientIGBT电磁暂态
4)electromagnetic transient overvoltage电磁暂态电压
5)electromagnetic transient of wind farm风电电磁暂态
6)electromagnetic transient model电磁暂态模型
1.This paper proposes a unifiedelectromagnetic transient model and control strategy for the voltage source converter(VSC) based HVDC transmission.为了更好的应用基于电压源换流器(VSC)的新型高压直流输电系统,发挥其技术优势,提出了VSC-HVDC统一电磁暂态模型并进行了其控制策略的研究。
延伸阅读
电磁暂态过程计算电磁暂态过程计算electromagnetic transient calculationd一onCI 20}飞to{g日OCher、91{s七Jorl电磁暂态过程计算(eleetromagnetiC transientcalculation)用数值计算方法对电力系统中从微秒至数秒之间的电磁暂态和准稳态过程所进行的计算.它包括:①由系统外部引起的暂态过程如雷电过电压等;②由故障及操作引起的暂态，如操作过电压、工频过电压等;③谐振暂态.如次同步谐振、铁磁谐振等;④控制暂态，如一次与二次系统的相互作用等;⑤电力电子装置及灵活交流输电系统(fl exibleAC transmission system，FACTS)、高压直流输电(highvoltage direet eurrent，HVDC)中的快速暂态和非正弦的准稳态过程等各种电磁暂态过程的数字仿真。它为电力系统的安全运行，设备的绝缘设计.保护装置的配置及参数选择，谐波分析及治理，电力电子装置、FACTS、HVDC系统主电路设计和设备自身的控制策略设计等提供重要的手段。电磁暂态过程计算的数学模型电力系统的电磁暂态过程受输电线路分布参数特性和参数的频率特性、发电机的电磁和机电暂态过程以及一系列元件(避雷器、变压器、电抗器等)非线性特性的影响。借助于计算机程序，用数值计算方法求解电磁暂态过程，必须建立这些元件和系统的代数或微分、偏微分方程.即计-算所用的数学模型。输电线路模型单根无损线的波动方程为式(1)和式(2)、，矛、，少1.19﹄了.、r、萨ul护u七2 aZ决2挤11护;众TZ az瀚2式中。为波速，。一l/丫万…瓦;乙和C，为单位长度导线的电感和电容;二为任一点与始端间的距离。这一方程式的解为式(3)和式(4) i=F(二一at)一f(二+ar)(3)u一ZF(二一at)+Zf(二十aI)(4)F和f是根据边界条件和初值条件决定的任意函数，波阻抗z一沂)沥瓦。F(二一“，)为前行波二f(:+at)为反行波。由式(3)和式(4)可以得到前行特征方程(5)和反行特征方程(6) “+Z;一ZZF(了一at)(5):‘一21=ZZF(了+at)(6)对于前行波来说，如果(x一at)不变，“+zi就不变。设想一观察者沿x方向以波速a与行波一起前进，由于(x一at)是常数，他所看到沿线任一点的“+Zi也是常数.这样，行波在(t一:)时刻从线路k端出发时粉到的u.(t一r)十Z汤(t一r)等于r时刻以后到达线路m端时着到的‘(t)十Z〔一如(t)〕.r为行波从掩到m的传播时间.由此得到式中R:为电感L的等值计算电阻，R‘=ZL/山，I乙为等值电流像，几(‘一。)一‘(‘一、)+誉〔u.(‘一。)丫巨’。
