根据对称分量法,推导了两种软件计算零序电流的方法。
Two methods to calculate the zero sequence current are deduced based on the symmetrical component method.
对称分量法及其序网联接技术是电力系统故障处理的传统方法。
Symmetrical components method and its sequence network connection technique are conventional way on fault analysis of power system.
本文给出了等效电路的ASVG使用对称分量的方法的系统的故障条件。
This paper gives the equivalent circuit of an ASVG for system faulty conditions using the symmetry component method.
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 transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
本文对电力系统分析计算中的对称分量法进行了评述,并与相坐标法进行比较。
The widely used symmetrical coordinates method for power system analysis is reviewed and com-pared with the direct phase coordinates method.
本文就高压输电线路故障,提出了一种基于实时对称分量法的故障测距新算法。
A new algorithm for fault location of HV transmission lines based on the real-time symmetric component method is proposed.
软件所采用的算法基于对称分量法,既适用于简单故障计算,又适用于复杂故障计算。
The algorithm bases on symmetrical components method, and it can calculate simple faults and complex faults.
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.
介绍了对称分量下解耦谐波潮流计算,提出谐波异地并联补偿的算法,并给出计算实例。
An arithmetic for remote parallel compensation, based on symmetrical components harmonic power flow, is given to solve the problem of voltage distortion of sense loads.
同时根据对称分量法的基本原理,提出以等效电流作为电动机热积累计算的依据的算法。
And, the equivalent current algorithm for the electric motor heat accumulation is proposed based on the symmetrical component method.
对于全并联直接供电牵引网短路故障,采用两相对称分量法,分析电路特征,得到短路阻抗表达式。
For the direct power traction systems with full parallel connection, the characteristics of short-circuit impedance is analyzed with method of two symmetrical phases, and the expression is acquired.
利用建立在对称分量解耦-补偿理论基础上的电力元件模型,提出了适用于谐波潮流计算的网络模型和算法。
By using the power element models established on symmetrical component decoupling - compensation theory, a network model with algorithm suitable for harmonic flow calculation is developed.
采用基于叠加原理的短路电流计算方法,克服了传统的对称分量法应用于配电网短路电流计算时所遇到的困难。
Furthermore, the superposition theorem is then adopted in the approach, which overcomes the difficulties when applying the symmetrical components to the short circuit calculation.
核自旋之间的各种各向异性相互作用都能用二阶张量表示,这些张量可分解成各向同性、对称以及反对称分量。
The various anisotropic spin interactions which can be represented by the rank two tensors are decomposed into isotropic, symmetric, and antisymmetric constituents.
针对电力系统中平行线路的跨线故障,提出一种融合对称分量法与相分量法的大规模电力系统跨线故障计算方法。
In this paper, a method of large scale power system transient Stability evaluation by system decomposition -aggregation and transient energy function method is presented.
使用矩阵运算代替对称分量法的传统序网故障变换,以实现不对称短路故障计算,并给出常见故障对应的参数矩阵。
Calculation formulas are proposed with matrices calculation to deal with unsymmetrical faults and parameter matrices for various faults are listed.
基于对称分量法,对电能表中性点虚接后的电压互感器二次压降进行了分析,得出了正确接线前后的计量误差变化量。
The on-site test results indicate that energy meter's neutral point virtual connection has a great effect on PT secondary voltage drop.
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.
与传统的对称分量法及旋转磁场法不同,本文用等效电流法对电容运转形式的单相电机进行了性能计算,主要推导出了主、副相电流的计算公式。
Equivalent current method different from symmetrical component method and revolving field method, is used for performance calculation on capacitor single phase motors on this paper.
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。
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.
应力分量构成了一个对称的数组。
当物体具有对称变形时,可通过图像处理的方法,获得二维变形的分量值。
If the deformation of the object is symmetrical, two components of deformation can be obtained by image processing.
应力分量构成了一个对称的数组。
使用相分量方法在分析电力系统三相不对称网络时更加方便。
Phase components method may offer advantages in the analysis of unbalanced three-phase networks.
建立了基于模分量大小和三相及零序电流大小的模糊数学模型,能快速准确的识别振荡中发生的不对称故障。
Establish the fuzzy set based on modulus component, three phases and residual current, which can distinguishing unbalance faults from power swing rapidly and reliably.
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.
基于对称和反对称问题中应力和位移分量满足的必要条件,分析了主方向上应力状态的对称和反对称特点,并用算例加以验证。
Based on the necessary conditions satisfied by stress and displacement, we analyzed symmetry and antisymmetry under the principal stress state using a computational example.
研究了利用相分量计算电力系统不对称故障的方法,说明了该方法的实用价值。
The calculation for asymmetrical failures in electric power systems using phase components is studied with its applicability discussed.
首先利用主分量分析法和人脸重心确定人脸对称轴,再结合山谷法进行眼睛候选点的提取和验证。
The principle component analysis and face bray center are used to detect the symmetry axis, and the valley method is applied to detect and verify the eye candidates.
首先利用主分量分析法和人脸重心确定人脸对称轴,再结合山谷法进行眼睛候选点的提取和验证。
The principle component analysis and face bray center are used to detect the symmetry axis, and the valley method is applied to detect and verify the eye candidates.
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