2) damping resistor
阻尼电阻
1.
Marked advantages of damping resistor-both falling the probability and decreasing amplitude of overvoltage were pointed out by simulating and analyzing the circuit describing single phase arcing grounding overvoltage.
对三相五柱式消弧线圈单相电弧接地过电压的等值计算电路进行了仿真分析,说明了电网中性点经并有阻尼电阻的三相五柱式消弧线圈接地具有明显的优点,既可减小出现过电压的概率,又降低过电压的幅值。
2.
On the other hand, the nonlinear resistor and the arc suppression coil in series can overcome the inherent shortcoming of the linear damping resistor shunt short-circuit apparatus in the automatic tracing are suppression equipment, improve the operating condition of the arc suppression coil, and enhance the security of pow.
另一方面,使消弧线圈串联非线性阻尼电阻克服了跟踪装置中线性阻尼电阻并联短接装置的固有缺点,改善了消弧线圈的运行状况。
3) damping resistance
阻尼电阻
1.
The effective methods are proposed by connecting parallel damping resistance on primary side of the coupling transformer or/and adopting pre-triggering.
5kA变压器耦合新型桥式固态限流器在纯电容负载试验时产生串联铁磁谐振的原因和机理,得出其根本原因是耦合变压器在副边等效开路情况下的非线性饱和所致；提出了可以在耦合变压器原边并联阻尼电阻以及固态限流器启动时采用预触发控制策略,防止启动过程中耦合变压器的非线性饱和,从而消除串联铁磁谐振的有效措施,并进行了仿真验证。
2.
Meanwhile, the voltage rise caused by resonance in course of adjusting is controlled by series damping resistance.
并且通过串联阻尼电阻以限制调节过程中谐振引起的电压升高。
3.
In order to clarify the influence of the damping resistance on system stability,filtering effect and power loss,the transfer function in S and Z domain according to the model of the three-phase voltage grid converter was acquired.
为明确LCL滤波的并网变换器中阻尼电阻对系统稳定性、滤波效果及功率损耗的影响,根据三相并网型变换器的数学模型,推导了电流环S域和Z域的传递函数,通过Z域系统极点变化情况分析了阻尼电阻对系统稳定性的影响;根据系统S域传递函数的波特图分析了阻尼电阻对滤波效果的影响;建立了Matlab/Simulink仿真模型,对系统稳定性和阻尼电阻对功率损耗的影响进行仿真。
4) damped resistor
阻尼电阻器
5) piezoelectric damping
压电阻尼
1.
A new method of controlled piezoelectric damping is proposed,and its effectiveness is verified by a case study.
分支电路系统中不同电器元件及其不同布置组合,可以构成不同的半主动压电阻尼系统。
2.
The paper discusses firstly the principle and classication of different types of the passive piezoelectric damping treatment.
对近10年来国内外关于具有分支电路的可控压电阻尼减振技术研究的进展进行了较为详细的评述和讨论。
6) electrical damping
电气阻尼
1.
An integrated method combining the calculation of electrical damping versus frequency and time domain simulation is applied in analyzing the SSR problem of Shenmu Power Plant phase one caused by its series compensation transmission scheme.
为评估神木电厂一期串补送出方案的次同步谐振(SSR)问题,采用电气阻尼频率特性计算与时域仿真相结合的方法,对该方案的SSR进行了全面、深入的计算和分析。
2.
Torsional interaction exists between HVDC converters and turbine-generators, and negative electrical damping provided by HVDC may cause subsynchronous oscillation (SSO) that can lead to turbine-generator shaft failure and electrical instability at oscillation frequencies lower than the fundamental system frequency.
本文从电气阻尼的角度出发，重点研究了几种包含HVDC的系统的次同步振荡问题。
补充资料：厂用电受电
厂用电受电
energizing of auxiliary power system
chongyongd一on sho一Jd一on厂用电受电(energizing of auxiliary powersystem)机组附属设备安装完毕后需通电试运行，所需厂用电源由外部供给，因此厂用电受电是调试工作开始的标志。 受电步骤新建电厂先由电力系统向变电站供电，再依次对高压起动/备用变压器、3~10kv厂用配电装置、厂用工作变压器及380V配电装置供电。扩建电厂因高压起动/备用变压器已经投人运行，故可利用它的电源对扩建的厂用配电装置等供电。 调试项目主要有:①用额定电压依次对空载线路、变电站母线、隔离开关、断瘩器、互感器、变压器及厂用配电装置等进行冲击合闸试验。有条件时.冲击合闸前应先进行递升加压试验。升压过程中注意检查各设备有无放电声及短路现象，发现问题及时处理后再进行升压。②检查三相电压应平衡，相序应正确，各段母线的相位彼此应一致。对配电装置供电时，有时会由于母线电容和与母线连接的电磁式电压互感器的电感相互作用而出现铁磁谐振，此时相电压升高，中性点明显位移。为消除谐振可在电压互感器的剩余电压绕组处并联电阻以去振。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条