查询词典 phasor

Dynamic phasor models of generator and line with distributed parameters were developed using generalized averaging method in this paper.

基于动态相量理论，提出发电机、分布参数线路的动态相量模型，讨论机-网接口方式。

ABSTRACT With the development of installed capacity and power system interconnect scale, the importance of stable monitor and control is becoming more and more obvious. The phase angle is one of basic state variable of electric power system, so monitoring and controlling power angle and phasor of the bus voltage are the most important means.

随着电网装机容量的增大及电网互连规模的扩大，电网的稳定监视和控制越来越重要，而相角是反映系统最基本的状态变量之一，因此监视和控制发电机的功角和母线电压相量，将是电力系统稳定监视和控制最重要的手段。

In this dissertation, dynamic phasor method based on the critical damping adjustment is developed to eliminate the numerical oscillation caused by the changes of the network configuration.

分析了基于梯形法的动态相量仿真的数值振荡问题，结合现有的算法和动态相量法的特点，讨论了基于临界阻尼调整法的动态相量法。

The dynamic phasor model of three-phase distribution parameter lines is also developed in this dissertation.

通过对算例的仿真，并与电磁暂态模型仿真结果的比较，验证了动态相量模型能突破传输时间常数对分布参数线路仿真步长的限制，用来仿真三相分布参数线路上的电磁暂态过程。

Maximum electrodynamic power and the impulse-current of a short cicuit were analyzed and calculated by using phasor methods, when three phases in this symmetric power system happened to be shorted.

bstract 用相量方法分析和计算了三相对称电力系统发生三相短路时的短路冲击电流和最大电动力，给出了动稳定度校验条件。

The PMU-phasor measurement unit has been placed in the power system expansively, and the PMU measurements have become another important data source.

随着相量测量装置在电网中的推广应用，PMU量测已成为电力系统重要数据源之一。

This course will cover: fundamental electrical circuit quantities, and circuit elements; circuits laws (Ohm law and Kirchhoff voltage and current laws); series and parallel connections of circuit elements; operational amplifiers; network theorems; nodal and mesh analysis methods; analysis of natural, step response, and response to sinusoidal input of first and second order circuits; phasor analysis; introduction to computer emulation to electrical circuit.

中文简介：本课程将覆盖以下内容：电子电路的基本原理，电路元件，基本电路定律(欧姆定律，基尔霍夫电压定律和基尔霍夫电流定律)；电子元器件的的串连和并联；运算放大器；网络理论；节点分析法和网孔分析法；一阶电路和二阶电路的普通信号，阶跃信号及单音信号的响应特性的分析；矢量分析法；并介绍计算机电路仿真的相关知识。

This paper simplifies the huge power system to be a linear circuitry by only the installation of Phasor Measurement Units on some buses to measure the voltage and current vector. Under Kirchhoff's law and Ohm's law, the conditions of inter-connected buses are calculated and further at the operation of whole system. Moreover, the understanding of electrical tide distribution is more understood and enable the power station workers monitor instantaneously and make comparison of operation frequencies at each area to monitor if the low frequency oscillations.

本论文系将庞大的电力系统想像成一个线性的电路系统，将某些汇流排装设同步相量量测单元，量测其电压、电流相量，藉由Kirchhoff's Law与Ohm's Law推算其相连接的汇流排的状态，进而了解整个系统运转时，电力潮流分布情形，提供电力公司人员作即时的监视，以及对各地区域的系统运转频率作同步比较，监视系统是否有低频振荡的情形产生。

Synchronized phasor measurements is a new developing technology in power system dynamic stability monitoring. It can effectively characterize the dynamic behavior of power system, directly perceived features, it reduces memory requirement and facilitate the postprocessing with the ability of improving efficiency, it provides an effective on-line analytic method for people working on power system.

本文对电力系统同步相量动态测量系统的建立和应用做出了积极贡献，在系统评述前人研究成果的基础上，给出了视在相角和视在频率的定义，提出了在线快速相量测量算法，并将几种自适应测频算法进行了比较，建立了基于GPS的电力系统全网同步时钟，完成了相应的动态监测装置及其动模实验。

The main funtions and stability assessment solutions based on phasor measurements are provided. The function of online oscillation monitoring is described in detail. This paper also presents some system applications and related experiences in European and Asian power grids.

本文主要介绍新近开发的广域监测、控制和保护系统的设计框架，基于广域测量的系统稳定性评估功能模块，以及该系统在欧洲和亚洲部分电网的应用和运行经验。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。