A new method for the positive sequence voltage detection is presented.
提出一种电网电压正序分量的近似计算及实现方法。
A new directional element based on the fault component positive sequence reactance (FCPSR) is presented.
提出了基于故障分量正序电抗的方向元件。
The measured distance of the lump parameter circuit model can be converted to the correspondingly matching positive sequence measured impedance.
根据集中参数线路模型算法的实测距离，换算成与模型匹配的正序测量阻抗。
The zero sequence component and the positive sequence component equations of transmission lines are derived on the basis of telegraph equations.
运用电报方程推导出三线-地耦合传输线零序分量和正序分量传输线方程。
The three phase detecting method closely connects with the Park transform and the result is the positive sequence part of the fundamental frequency.
三相求法与派克变换有很密切的联系，求出的是三相基波正序分量。
Measures, such as the floating of threshold, braking by positive sequence current, driving up the threshold during power swing, etc are suggested to prevent th.
采用浮动门槛、正序电流制动和静稳破坏后提高动作门槛值的方法，来防止系统振荡时误启动。
The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
应用瞬时值对称分量变换，可提取电压、电流故障分量的正序空间向量。
The proposed method doesn't need hardware synchronization circuit and can perform the calculation of fundamental positive sequence component of the supply voltage in real time.
这种方法不需要硬件同步电路，能实时地计算电源电压中的基波正序分量。
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.
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。
A series ac voltage regulator based on a new fundamental positive sequence calculation method, which is utilized to generate the compensation voltage reference, is introduced in this paper.
针对串联型交流电压调节器，提出了一种新的基波正序计算方法以获取补偿电压的参考信号。
Based on symmetrical component method and linear superposition principle, the additional positive sequence network after fault is established and the matching index on fault point is defined.
该方法首先运用对称分量法和线性叠加原理建立故障后的附加正序网络并且定义了故障点的匹配指标，进而基于该指标运用遍历搜索方法寻找故障点位置。
Considering the imbalance of three phase voltages, a new arithmetic which verifies the generator paralleling based on the synthetic phasor of positive sequence fundamental voltage is proposed.
考虑到三相电压或多或少有些不平衡，提出了一种新的基于正序基波电压合成相量的发电机并网条件核算法。
Considering the imbalance of three phase voltages, a new arithmetic which verifies the generator paralleling based on the synthetic phasor of positive sequence fundamental voltage is proposed.
考虑到三相电压或多或少有些不平衡，提出了一种新的基于正序基波电压合成相量的发电机并网条件核算法。
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