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   system resonance frequency 的翻译结果: 查询用时:0.188秒
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system resonance frequency
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  “system resonance frequency”译为未确定词的双语例句
     Petersen coil tuning system is implemented, which is based on measuring the system resonance frequency. This principle is not affected by syctem operation.
     外加信号法测量脱谐度是在系统正常运行情况下进行的,不影响系统正常运行,且不受系统运行的影响,对于具有多个消弧线圈的配电网,只需选定一个消弧线圈进行测量,就可完成整个配电网脱谐度的测量,无需通讯配合。
短句来源
     It is found through experiment that the reason for mismatching between DBD plasma source and its exiting power supply lies in system resonance, frequency of resonance is determined by the leak inductance of voltage changer of power supply and the equivalent capacity of the dielectric layer in DBD device.
     通过实验对DBD等离子体源与其激励电源之间的失配问题进行了研究,结果发现二者失配的根源在于系统谐振,谐振频率取决于激励电源变压器漏感与DBD电介质层等效电容。
短句来源
     Various frequency constant current is injected to second side of PT (potential transformer) which the magnetic valve arc extinguishing coil is the first side. Arc extinguishing coil tuning system is implemented, which is based on measuring the system resonance frequency.
     本方法采用带PT的磁阀式消弧线圈,从PT低压侧注入零序恒流信号,通过频率扫描确定系统的谐振频率,再由公式计算出脱谐度,然后根据脱谐度的预先设定的偏离值调节消弧线圈分接头,实现消弧线圈的调谐。
短句来源
     The effect of individual part's resonance frequency variation on the system resonance frequency was studied through changing the geometry parameters of the part.
     通过改变单个部件的几何参数研究了超声车削系统中单个部件固有频率变化对整体系统固有频率的影响 ,分析结果和实验基本吻合 .
短句来源
  相似匹配句对
     The Principle and Application of Variable Frequency Resonance System
     变频谐振试验系统的原理与应用
短句来源
     Study on Piezoelectric Microcantilever Resonance Frequency Sensing System
     压电微悬臂梁共振检测系统的研究
短句来源
     The Research of Power System Low Frequency Oscillation on Resonance Mechanism
     电力系统共振机理低频振荡的研究
短句来源
     When the frequencies equal to the natural frequency of the system, resonance appears.
     当变幅激励频率等于系统固有频率时,系统面内外均出现共振现象。
短句来源
     The absorption peak occurs near the resonance frequency in the SRRs system.
     缺陷的存在破坏了材料的周期性结构,从而引起其谐振峰的谐振强度和谐振频率发生变化。
短句来源
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Traditional methods for protection relay and control in compensated network are difficult to meet the requirement of distribution system automation. New methods based on injecting current are presented in this paper. Petersen coil automation tuning system is implemented, which is based on measuring the system resonance frequency. High impedance fault detection is implemented by measuring the zero sequence voltage caused by injecting current. And the fault feeder is detected by measuring the zero sequence...

Traditional methods for protection relay and control in compensated network are difficult to meet the requirement of distribution system automation. New methods based on injecting current are presented in this paper. Petersen coil automation tuning system is implemented, which is based on measuring the system resonance frequency. High impedance fault detection is implemented by measuring the zero sequence voltage caused by injecting current. And the fault feeder is detected by measuring the zero sequence power factor caused by injecting current. This principle is not affected by system operation. It has high precision and high reliability. The prototypes for protection relay and control is developed, which have passed the simulation test. While Petersen coil automation tuning system has been tested on the network for many years.

提出基于注入信号法的控制与保护新方法:采用注入零序恒流信号,测量系统谐振频率,计算电容电流,进行消弧线圈自动调谐;采用测量零序信号电压,计算接地电阻,进行高阻接地故障辨识;采用测量各出线零序信号功角,计算线路阻尼率,进行故障选线。该方法不受系统运行的影响,易实现就地保护控制,精度高、抗干扰能力强。样机已通过动模实验,其中消弧线圈自动调整系统已形成产品,在现场运行多年,效果良好。

The compound vibration essential equation was set up via the mechanical impendence method. The effect of individual part's resonance frequency variation on the system resonance frequency was studied through changing the geometry parameters of the part. The ultrasonic cutting system set up according to the above principle demonstrates a perfect vibration effect.

采用机械阻抗法建立了超声车削系统的组合共振基本方程 .通过改变单个部件的几何参数研究了超声车削系统中单个部件固有频率变化对整体系统固有频率的影响 ,分析结果和实验基本吻合 .按上述方程建立的超声车削系统得到了良好的共振效果

Traditional methods for Petersen coil resonance adjustment and feeder earth fault identification in compensated network are introduced.All this methods hardly satisfy the requirement of distribution system automation.A new method for Petersen coil automation tuning is developed,which is based on measuring the system resonance frequency and parameters to the ground, and a new method for faulted feeder identification is also presented,which is based on measuring the zero sequence current variation caused...

Traditional methods for Petersen coil resonance adjustment and feeder earth fault identification in compensated network are introduced.All this methods hardly satisfy the requirement of distribution system automation.A new method for Petersen coil automation tuning is developed,which is based on measuring the system resonance frequency and parameters to the ground, and a new method for faulted feeder identification is also presented,which is based on measuring the zero sequence current variation caused by shut-cutting the neutral earthed resistance.The devices for Petersen-coil tuning and fault identification have been developed and applied in distribution networks throughout China for many years.

在现有的消弧线圈自动调整及故障选线方法的基础上,提出了采用注入信号法测量配电网对地参数(对地电阻和阻尼率)进行消弧线圈调谐及中性点接地阻抗柔性控制,探讨了一种通过改变配电网中性点接地阻抗参数、测量零序电流变化和进行故障选线的方法.产品已通过现场运行,并在全国推广应用,效果良好.

 
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