提出一种用零序分量做动作量,负序分量做制动量的综合序分量接地距离继电器。
An earth fault distance relay based on the combined sequence components is presented.
该方法采用高频电压载波注入方式形成高频电流矢量,其负序分量包含了转子空间位置信息。
The method employed high-frequency voltage-signal injection to make motor form a high-frequency current-vector, of which the negative component current contained rotor space-position information.
电弧炉是一种严重的不对称冲击负载,它将产生大量的负序分量而污染电网,所以需要对其进行平衡化补偿。
Arc furnace is a typical unbalanced impact load. It pours a great deal of negative sequence component to power system, so measures shou ld be taken to compensate the arc furnace load.
文中提出一种新型的、高精度的故障分量——综合负序矢量的概念 ,并给出综合三相负序分量的实时算法。
The concept of a new- style and high- precision fault component, synthetic negative sequence vector SNSV is proposed in the paper.
当交流系统发生三相不对称故障时,忽略直流系统负序分量的准稳态模型将给交直流混合系统的仿真带来较大的误差。
The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when unbalanced fault occurs in AC system.
基于高压输电线路的分布参数模型,使用线路两端电压、电流的正序和负序分量,对高压输电线路两点异相故障提出了一种新的测距算法。
Based on the distributed parameter model for transmission line, a new fault location method for short circuit fault of two points on different phases of the power transmission line is presented.
该方案包括了横差保护、故障分量负序功率方向保护和不完全纵差保护的综合应用。
The scheme includes the transverse differential protection, the directional relay action on negative sequence power of fault component and the incomplete differential protection.
因正、负序功率分量之和可由通常采用的“二瓦特表法”获得,于是正、负序功率分量即可析离开来。
Since the sum of these two power components can be obtained by the usually used "two Wattmeter method" , then the components can be Separated.
首先运用对称分量法将单相异步电动机分为正序系统和负序系统,然后分别用矩阵分析了这两个系统中各自的有功功率、无功功率和视在功率。
Using the method of symmetric components and matrix, this paper analyses instantaneous power and the operation parameters concerning one-phase asynchronous motor in dynamic state.
基于对称分量法理论,提出了基于检测正序、负序、零序电流分量的电动机保护方法。
Based on the symmetry component theory, a method of the motor protection is presented by measuring positive, negative and zero sequence current component.
在典型的六相输电系统中,半正序、半零序和半负序故障分量不受系统阻抗变化的影响。
In typical six-phase transmission system, half positive sequence, half zero sequence and half negative sequence fault components are independent of the variance of system impedance.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
为了解决上述问题,本文采用了抑制网侧负序电流分量的控制方案,仿真结果表明采用该方案后输出电流波形满足了正弦化及平衡化的要求。
In this paper, a control system with restraining negative sequence current is adopted simulation results of which demonstrate that output current waveform can meet sinusoidal and balanced demand.
实验结果表明,该装置可对三相四线制系统中的谐波、负序、零序等电流分量进行补偿。
Experimental results prove the proposed control method can compensate the harmonic, negative sequence and zero sequence current components in the three phase four wire.
实验结果表明,该装置可对三相四线制系统中的谐波、负序、零序等电流分量进行补偿。
Experimental results prove the proposed control method can compensate the harmonic, negative sequence and zero sequence current components in the three phase four wire.
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