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瞬态参数    
相关语句
  transient parameter
    The comparison between OLFR method and time-domain method indicates that, though two methods both have high accuracy in identification of q-axis static reactance, OLFR method is better in identification of q-axis transient parameter, and when considering the d-axis static reactance, the time-domain method has higer accuracy than OLFR method.
    对于q轴瞬态参数,OLFR方法辨识效果优于时域辨识; 而对于d轴稳态电抗,采用时域辨识方法得到的参数精度高于OLFR方法。
短句来源
  transient parameters
    Calculation of D Axis Transient Parameters of Turbogenerator by Time-stepping Finite Element Method
    用时步有限元法计算汽轮发电机直轴瞬态参数
短句来源
    Comparison of Two Mensuration Methods for Transient Parameters of Synchronous Machine
    两种测定同步电机瞬态参数方法的比较
短句来源
    The work includes the computation on 2D electromagnetic field of a 650MW turbogenerator and its steady and transient parameters.
    课题工作以一台650MW 汽轮发电机为例,计算了电机二维电磁场并求得了电机的稳、瞬态参数
短句来源
    Based on the existing theory of the parameter calculation of the pumped storage machines, calculation method was given for steady parameters and transient parameters with the consideration of saturation by ANSYS. Then a electrical machine at a pumped storage station was taken as an example, on the basis of which the steady parameters, transient parameters, self inductance and mutual inductance of the damper bars are calculated.
    本文在已有的抽水蓄能电机电磁参数计算的理论基础上,提出了利用ANSYS软件的APDL功能,考虑饱和时的稳态参数和瞬态参数的计算方法,并以某电站的抽水蓄能电机为例,进行了稳态参数、瞬态参数以及各阻尼条之间自感和互感参数的计算。
短句来源
    And these results could be used to identity the transient parameters of a machine by the simplest data and optimum method.
    这个结果将有助于人们用更简单的参数最优化的方法判辨电机的瞬态参数
短句来源
更多       
  transient parameters
    Calculation of D Axis Transient Parameters of Turbogenerator by Time-stepping Finite Element Method
    用时步有限元法计算汽轮发电机直轴瞬态参数
短句来源
    Comparison of Two Mensuration Methods for Transient Parameters of Synchronous Machine
    两种测定同步电机瞬态参数方法的比较
短句来源
    The work includes the computation on 2D electromagnetic field of a 650MW turbogenerator and its steady and transient parameters.
    课题工作以一台650MW 汽轮发电机为例,计算了电机二维电磁场并求得了电机的稳、瞬态参数
短句来源
    Based on the existing theory of the parameter calculation of the pumped storage machines, calculation method was given for steady parameters and transient parameters with the consideration of saturation by ANSYS. Then a electrical machine at a pumped storage station was taken as an example, on the basis of which the steady parameters, transient parameters, self inductance and mutual inductance of the damper bars are calculated.
    本文在已有的抽水蓄能电机电磁参数计算的理论基础上,提出了利用ANSYS软件的APDL功能,考虑饱和时的稳态参数和瞬态参数的计算方法,并以某电站的抽水蓄能电机为例,进行了稳态参数、瞬态参数以及各阻尼条之间自感和互感参数的计算。
短句来源
    And these results could be used to identity the transient parameters of a machine by the simplest data and optimum method.
    这个结果将有助于人们用更简单的参数最优化的方法判辨电机的瞬态参数
短句来源
更多       
  transient parameters
    Calculation of D Axis Transient Parameters of Turbogenerator by Time-stepping Finite Element Method
    用时步有限元法计算汽轮发电机直轴瞬态参数
短句来源
    Comparison of Two Mensuration Methods for Transient Parameters of Synchronous Machine
    两种测定同步电机瞬态参数方法的比较
短句来源
    The work includes the computation on 2D electromagnetic field of a 650MW turbogenerator and its steady and transient parameters.
    课题工作以一台650MW 汽轮发电机为例,计算了电机二维电磁场并求得了电机的稳、瞬态参数
短句来源
    Based on the existing theory of the parameter calculation of the pumped storage machines, calculation method was given for steady parameters and transient parameters with the consideration of saturation by ANSYS. Then a electrical machine at a pumped storage station was taken as an example, on the basis of which the steady parameters, transient parameters, self inductance and mutual inductance of the damper bars are calculated.
    本文在已有的抽水蓄能电机电磁参数计算的理论基础上,提出了利用ANSYS软件的APDL功能,考虑饱和时的稳态参数和瞬态参数的计算方法,并以某电站的抽水蓄能电机为例,进行了稳态参数、瞬态参数以及各阻尼条之间自感和互感参数的计算。
短句来源
    And these results could be used to identity the transient parameters of a machine by the simplest data and optimum method.
    这个结果将有助于人们用更简单的参数最优化的方法判辨电机的瞬态参数
短句来源
更多       

 

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  transient parameters
Examples of possible applications refer to the analysis of transient parameters, the pattern of enzymatic pathways in relation to cell growth, effects of cofactors or metabolic "preloading", etc.
      
Analysis of chlorophyll (Chl) fluorescence transient parameters of leaf segments suggested no change in the Fv/Fm value due to UV-B or UV-B/A exclusion.
      
A great deal of research, monitoring of telephone and data lines, and testing were required to define the transient parameters.
      
First, values for the transient parameters in the driver model have been found to fit measured transient responses well.
      
  transient parameters
Examples of possible applications refer to the analysis of transient parameters, the pattern of enzymatic pathways in relation to cell growth, effects of cofactors or metabolic "preloading", etc.
      
Analysis of chlorophyll (Chl) fluorescence transient parameters of leaf segments suggested no change in the Fv/Fm value due to UV-B or UV-B/A exclusion.
      
A great deal of research, monitoring of telephone and data lines, and testing were required to define the transient parameters.
      
First, values for the transient parameters in the driver model have been found to fit measured transient responses well.
      
  transient parameters
Examples of possible applications refer to the analysis of transient parameters, the pattern of enzymatic pathways in relation to cell growth, effects of cofactors or metabolic "preloading", etc.
      
Analysis of chlorophyll (Chl) fluorescence transient parameters of leaf segments suggested no change in the Fv/Fm value due to UV-B or UV-B/A exclusion.
      
A great deal of research, monitoring of telephone and data lines, and testing were required to define the transient parameters.
      
First, values for the transient parameters in the driver model have been found to fit measured transient responses well.
      
  其他


In this paper,the breaking transient formulas of terminal voltage and field current of synchronous machine with three phase symmetric load have been derived. And these results could be used to identity the transient parameters of a machine by the simplest data and optimum method.

本文导出了同步电机三相对称负载突然拉开,电机端电压与励磁电流在瞬态过程中的解析表达式。这个结果将有助于人们用更简单的参数最优化的方法判辨电机的瞬态参数

The current curves of the windings in turbogenerators at sudden 3-phase short circuit are calculated by using the transient electric-magnetic field FEM. After the results are decomposed and mediated, the transient parameters of turbogenerators are made out. The structure of the teeth and slots and the saturation in turbogenerators are considered effectively. The CPU time for solving non - linear equations of higher degree in a computer is reduced by using "Newton and Rphson" reiterative method and ICCG algorithm....

The current curves of the windings in turbogenerators at sudden 3-phase short circuit are calculated by using the transient electric-magnetic field FEM. After the results are decomposed and mediated, the transient parameters of turbogenerators are made out. The structure of the teeth and slots and the saturation in turbogenerators are considered effectively. The CPU time for solving non - linear equations of higher degree in a computer is reduced by using "Newton and Rphson" reiterative method and ICCG algorithm. So the method in this paper is very practical.

本文利用瞬态电磁场有限元法计算汽轮发电机空载时发生三相突然短路的统组电流曲线,然后对电流曲线的数值结果进行分解、拟合,得到电机的瞬态参数。该方法有效地考虑了电机齿槽结构和饮和现象。通过“牛顿-拉夫逊”迭代法和ICCC算法的结合,大大降低了计算机求解亮阶非线性代数方程组的CPU时间,因此该法具有一定的实用性。

The transient electromagnetic field and the stator current of turbogenerator are calculated by time-stepping finite element method under three phases sudden short circuits. The harmonic components of short circuit current are analysed, the transient stator current and transient parameters are derived with the rotor damping systems simulated by one and two circuits. Finally, taking a 600 MW turbogenerator as an example, the method of determining the transient reactances and time constant is presented.

本文采用时步有限元法计算了汽轮发电机定子在空载情况下三相突然短路时的瞬态电磁场,得到了定子电流随时间的变化曲线,分析了短路后定子电流的谐波分量;讨论了转子阻尼系统用不同的回路数模拟时瞬态参数的变化;并以一台600MW汽轮发电机为例,阐述了瞬态电抗和时间常数的计算方法。

 
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