查询词典 phasor

Synchronized phasor measurement of electric power system ; ethernet ; asynchronous transfer mode; supervisory and control system ; phase measurement unit

电力系统同步相量测量；以太网；异步传输模式；监控系统；相角测量装置

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（PMU—phasor meeasurement unit）在电网中的推广应用，PMU量测已成为电力系统重要的数据源之一。

By use of time-varying Fourier coefficient series of power system variables, new dynamic phasor models of thyristor-controlled reactor are developed. In this model the higher order harmonic components that have less impacts on dynamic characteristic of TCR are neglected, and through the average operation of time-domain model of TCR, a dynamic phasor state-space model of TCR is derived.

利用电力系统变量的时变傅里叶系数得到晶闸管控制电抗器(thyristor controlled reactor，TCR)的动态相量模型，该模型忽略了对TCR动态特性影响较小的谐波分量，并通过对TCR时域模型的平均运算获得动态相量状态空间模型。

The phasor of generatrix voltage is the main status parameter to reflect the stabilization of the system, the real-time measurement of phasor will provide important proof for security and stable control.

母线电压相量是反映系统稳定性的最主要的状态量，电压和电流相量的实时测量可以为安全调度、稳定控制等提供有力依据。

An algorithm to predict the perturbed trajectories in multi-machine system is proposed based on data from phasor measurement units.

提出基于同步相量测量单元(phasor measurement units，PMU)量测的多机系统受扰轨迹预测方法。

State estimation of voltage phasor based on parts of voltage and current phasor measurements.

部分电压和电流向量可测量时电压相角的状态估计。

Through computer simulation of azeotropy rectification dehydration tower with benzene as entrainer, the optimal technical parameters were obtained as follows:①the output quantity of top tower was 69 kg／h, return benzene phasor as 58 kg／h and reflux ratio as 3, alcohol concentration in charge the higher the better, however, its maximum value influenced by water content at azeotropy point;②sensitivity analysis results indicated that the sensitivity of output quantity of top tower was the highest, alcohol concentration in charge the second and return benzene phasor and reflux ratio the lowest.

对以苯作为夹带剂的共沸精馏脱水塔进行了计算机模拟，得到了最佳工艺参数：①塔顶采出量为69 kg／h，返回苯相量为58 kg／h，回流比为3，进料乙醇浓度越高越好，但其最大值受共沸点水含量的影响。②敏感性分析的结果为塔顶采出量的灵敏度最大，进料乙醇浓度次之，而返回苯相量和回流比较小。

Four parts are included as follows:First of all, the phasor method is adopted to analyze the influence of the demagnetizing coefficient, saliency ratio and stator current control strategies of PMSM on the motors voltage and current phasor loci and then the power capability and the flux-weakening level.

概括起来，本文的内容可分为以下几个部分：第一部分首次采用永磁同步电动机d、q坐标系下的相量分析方法，详细分析电机不同弱磁率、凸极率及不同定子电流控制策略对电机电压、电流相量变化轨迹的影响，及由此导致的电机功率特性及弱磁扩速能力的差异。

The fault component integrated impedance becomes a ratio of the sum of the fault component voltage phasor to the sum of the fault component current phasor of two terminals. It is used to identify if a fault exists on the line.

利用故障时线路两端故障分量电压相量和与故障分量电流相量和的比值，来判断线路上是否发生了故障。

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 fast electromagnetic 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。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。