助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   equivalent damping coefficient 在 电力工业 分类中 的翻译结果: 查询用时:0.576秒
图标索引 在分类学科中查询
所有学科
电力工业
汽车工业
机械工业
力学
工业通用技术及设备
安全科学与灾害防治
更多类别查询

图标索引 历史查询
 

equivalent damping coefficient
相关语句
  等效阻尼系数
    The calculating formula of equivalent damping coefficient of k1-k6 model is introduced according to the difference of damping torque coefficients between c1-c12 model and Phillips-Heffron k1-k6 model.
    根据c1-c12模型与Phillips-Heffronk1-k6模型下阻尼力矩系数之差,给出了k1-k6模型等效阻尼系数算式。
短句来源
  等效阻尼系数
    The calculating formula of equivalent damping coefficient of k1-k6 model is introduced according to the difference of damping torque coefficients between c1-c12 model and Phillips-Heffron k1-k6 model.
    根据c1-c12模型与Phillips-Heffronk1-k6模型下阻尼力矩系数之差,给出了k1-k6模型等效阻尼系数算式。
短句来源
  等效阻尼系数
    The calculating formula of equivalent damping coefficient of k1-k6 model is introduced according to the difference of damping torque coefficients between c1-c12 model and Phillips-Heffron k1-k6 model.
    根据c1-c12模型与Phillips-Heffronk1-k6模型下阻尼力矩系数之差,给出了k1-k6模型等效阻尼系数算式。
短句来源
  “equivalent damping coefficient”译为未确定词的双语例句
    In this paper, on the basis of analysis of low-frequency oscillation'sprinciple , the model of power system for low-frequency oscillation to be used in the paperhas been built and additional equivalent damping coefficient of excitation system and powersystem stabilizer (PSS) is educed.
    本文在分析了低频振荡原理的基础上,建立了相关的系统模型,并由此得出励磁系统和电力系统稳定器(PSS)的等值附加阻尼系数。 然后,计算出机电模式特征值虚部,并推导出实部表达式,从而得到特征根的初值;
短句来源
    The effect on the electromechanical mode of the excitation control is expressed by the additional equivalent damping coefficient. The formula of the real part including only inertia constants M,damping coefficients D and corresponding eigenvectors is derived to assume the real part of the eigenvalue,thus working out the initial eigenvalue.
    再用等值阻尼系统表示发电机的励磁控制作用对机电振荡模式的影响,推导出只用机组惯性常数M和阻尼系数D及相应的特征向量表示的机电模式的实部估算公式,由此公式估算出相应的实部,从而得到各振荡模式的特征根的初值;
短句来源
查询“equivalent damping coefficient”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  equivalent damping coefficient
Figure 18 provides the hysteric area and the equivalent damping coefficient for the frame with flat-plate-type BRBs and the cross-type BRBs.
      


A fast calculation for the electromechanical mode of multi-machine power systems is presented,which avoids both dimensionality calamity and eigenvalue loss. The oscillatory mode(the imaginary part of eigenvalues) and the oscillatory mode shape(eigenvectors) are calculated with the classical model. The effect on the electromechanical mode of the excitation control is expressed by the additional equivalent damping coefficient. The formula of the real part including only inertia constants M,damping...

A fast calculation for the electromechanical mode of multi-machine power systems is presented,which avoids both dimensionality calamity and eigenvalue loss. The oscillatory mode(the imaginary part of eigenvalues) and the oscillatory mode shape(eigenvectors) are calculated with the classical model. The effect on the electromechanical mode of the excitation control is expressed by the additional equivalent damping coefficient. The formula of the real part including only inertia constants M,damping coefficients D and corresponding eigenvectors is derived to assume the real part of the eigenvalue,thus working out the initial eigenvalue. Then the inverse power method is used to calculate all accurate electromechanical eigenvalues rapidly according to the Heffron - Phillips state matrix of the whole system. The ENGLAND 10 -machine system is employed to demonstrate the effectiveness of the method.

提出了一种快速求解多机系统机电振荡模式的新方法,既能避免维数灾问题又能防止出现丢根现象。首先,通过建立发电机的经典模型,计算出多机系统的各振荡模式(特征根虚部)和振荡模态(特征向量);再用等值阻尼系统表示发电机的励磁控制作用对机电振荡模式的影响,推导出只用机组惯性常数M和阻尼系数D及相应的特征向量表示的机电模式的实部估算公式,由此公式估算出相应的实部,从而得到各振荡模式的特征根的初值;根据Heffron-Phillips全系统的状态矩阵和已经估算出的特征根,用反幂法快速求出系统状态矩阵的根,即为此多机系统的全部机电模式特征根。最后,用ENGLAND10机系统算例证明了该方法的有效性。

In traditional formulas of electromagnetic torque coefficients for the damped synchronous generator,the mutual inductance between d-axis damping winding and excitation winding is neg-lected and the effect of AVR(Automatic Voltage Regulator) is not considered.To improve the com-puting accuracy and better understand their effects on unit stability,some formulas of electromagnetic torque coefficients are founded by applying small oscillation method,which is based on the c1-c12 model of single-machine infinite-bus...

In traditional formulas of electromagnetic torque coefficients for the damped synchronous generator,the mutual inductance between d-axis damping winding and excitation winding is neg-lected and the effect of AVR(Automatic Voltage Regulator) is not considered.To improve the com-puting accuracy and better understand their effects on unit stability,some formulas of electromagnetic torque coefficients are founded by applying small oscillation method,which is based on the c1-c12 model of single-machine infinite-bus system and considers effects of AVR and mutual inductance.Based on formulas,the electromagnetic torque is divided into inherent part and controlled part according to whether it is related to AVR.Effects of q-axis damping winding,d-axis damping winding and main excitation regulating channels on synchronizing capacity,especially damping capacity,of generator unit,and the mechanism of low-frequency oscillation are analyzed in detail.It is achieved that,AVR always weakens the unit damping;q-axis winding damping is enhanced under AVR while d -axis winding may supply negative damping;the augment of external reactance and active power load reduces the inherent damping;the damping weakened by AVR is related to AVR gain and increases with the inherent damping decreasing.The calculating formula of equivalent damping coefficient of k1-k6 model is introduced according to the difference of damping torque coefficients between c1-c12 model and Phillips-Heffron k1-k6 model.

含阻尼绕组同步发电机电磁力矩系数的传统算式忽略直轴阻尼绕组与励磁绕组的互感,且不考虑自动励磁调节(AVR)的作用。为提高电磁力矩系数计算的准确性,细化关于AVR和阻尼绕组对机组稳定性影响的认识,基于计及阻尼绕组作用的c1-c12模型,采用微振荡法建立了计及AVR以及直轴阻尼绕组与励磁绕组互感的同步发电机电磁力矩系数表达式。基于这些表达式,按是否与AVR有关,将电磁力矩划分为固有分量和受控分量,对交、直轴阻尼绕组,励磁调节主通道等对机组同步能力特别是阻尼能力的影响以及低频振荡的机理进行了详细分析。分析表明,AVR总是削弱机组阻尼;在AVR作用下,交轴阻尼绕组的阻尼作用得到增强,而直轴阻尼绕组反而可能提供负阻尼;外部电抗和有功负载的增大导致固有阻尼能力下降;AVR削弱阻尼的强度不仅与其增益有关,而且随着固有阻尼能力的下降而增强。根据c1-c12模型与Phillips-Heffronk1-k6模型下阻尼力矩系数之差,给出了k1-k6模型等效阻尼系数算式。

 
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关equivalent damping coefficient的内容
在知识搜索中查有关equivalent damping coefficient的内容
在数字搜索中查有关equivalent damping coefficient的内容
在概念知识元中查有关equivalent damping coefficient的内容
在学术趋势中查有关equivalent damping coefficient的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社