振荡阻尼越迅速,飞机的动态稳性就越高。
The quicker the resulting oscillations damp out, the greater the dynamic stability of the airplane.
因此,为了建成精确的长期工作的导航仪,一定要寻找某些方法来把这些振荡阻尼掉。
Therefore, in order to build a precise extended-time navigator, some means must be found to damp out these oscillations.
研究机组之间存在水力联系的水电站中,两台机组采用扩大单元接线对系统低频振荡阻尼的影响。
According to two units with hydraulic coupling in hydropower plants, the effect of expanded unit connection to low frequency oscillations damping was studied in detail.
实际分析表明,逆变侧交流母线的强弱以及逆变站不同的控制方式对次同步振荡阻尼特性有显著影响。
The results of practical analysis show that the strength of AC busbar at inverter side and various control modes of inverter station impact the characteristics of SSO evidently.
试验表明,仿真试验结果与实际试验一致,无论发电或电动机运行方式,对低频振荡阻尼均有较大增强。
The test show that the simulation test result is identical with that of practical test. The low frequency oscillation damping is considerably enhance on w...
提出了一种基于测试信号法的TCSC功率振荡阻尼(POD)控制器的设计方法,避免了计算量庞大的状态矩阵特征值计算。
A new test signal method based approach to design power oscillation damping (POD) controller for TCSC is proposed, by which the bulky eigenvalue calculation of state matrix can be avoided.
可控串联补偿(TCSC)对于阻尼电力系统低频振荡具有重要意义。
Thyristor controlled series compensation (TCSC) possesses important meaning in damping low frequency oscillation in power system.
目前,电力系统主要采用电力系统稳定器(PSS)和FACTS阻尼控制器来抑制低频振荡,提高系统小扰动稳定性。
Currently, Power System Stabilizers (PSS) and FACTS damping controllers are widely used to suppress the low frequency oscillations and to improve small signal stability.
采用测试信号法,通过计算发电机组的次同步电气阻尼特性,分析所设计的SEDC对发电机组次同步振荡的抑制效果。
By using test signal method, the sub-synchronous electrical damping characteristics of a generator and the impacts of the designed SEDC on the generators electrical damping are analyzed.
阻尼:物理学中,指因能量耗散使振荡、噪音、交流电之类的振动所受到的遏制。
Damping: in physics, the restraint of vibratory motion, such as mechanical oscillations, noise, and alternating electric currents, by dissipating energy.
本文分析了电压逆变器型有源滤波器系统的稳定性,提出了不用阻尼电阻抑制系统振荡的方法。
The stability of VSI active power filter systems is analyzed, and a method for suppressing transient oscillations in these systems without inserting damping resistors is proposed in this article.
机组的惯量对区域振荡频率和阻尼有着较大的影响。
Generator inertia has great influence on interarea oscillation frequency and damping.
直流联网对发电机速度信号具有迅速作出响应的能力并按需要提高和降低潮流以阻尼暂态振荡。
The DC interconnection has the ability to respond rapidly to generator speed signals and increase or decrease the power flow as needed to dampen the transient oscillations.
同步转矩及阻尼转矩是两个在动态稳定研究中广泛应用的概念,它们对于电力系统低频振荡分析尤为重要。
Synchronizing torque and damping torque are two concepts widely used in dynamic stability studies and especially important to low-frequency oscillation analysis.
直流输电的潮流可被调制以阻尼振荡并提高功率承载能力。
The DC transmission power flow can be modulated to dampen the oscillations and increase their power-carrying capability.
采用特征值分析法研究交直流电力系统中HVDC换流器控制对次同步振荡(SSO)模态阻尼的影响。
The influence of HVDC converter controls on the mode damping of sub-synchronous oscillations (SSO) in a AC/DC power system is investigated in this paper by using eigenvalue analytical method.
建立了转速小振荡时感应电动机的电压方程、电磁转矩和转矩方程,导出了异步转矩和阻尼转矩系数。
The voltage and torque equations of induction motor during hunting are formulated at first, then the asynchronous and damping torque coefficients are derived.
对于稳定的周期运动,由于增加了系统的阻尼耗散项从而减少了振荡幅度。
Stable periodic motions such as wing-rock and oscillatory spin tend to be suppressed or the amplitudes be lessened due to the rotational damping of the unsteady aerodynamic delay.
由于电力系统的日趋复杂和庞大,电力系统除了因负阻尼引起的低频振荡外,还存在PSS不能消除的混沌振荡的危机。
Because of power systems being more and more complicated, besides low frequency oscillation by minus damp, there is also chaos oscillation that can not be dispelled by PSS in power systems.
对于不同的传压管径、传压管长度和腔室容积,得到不同阻尼的衰减振荡曲线以及过阻尼时呈单调衰减的回零过程曲线。
Then the different damped oscillation curves and over-damped monotonic decay curves can be obtained for various diameter and length of the pressured tube and various volume of the chamber.
直流输电线路功率调制的目标是阻尼区域COI功角和频率间的相互振荡。
The objective of DC power modulation is to damp the relative swing of angle and frequency of the two areas from COI.
在亚光速区,对处于相对论性振荡的纵等离激元色散方程进行数值求解,得到了朗道阻尼系数的数值解。
The landau damping rate is obtained by solving the dispersion equation of relativistic longitudinal plasmons with the sub-light-velocity numerically.
动态仿真分析表明,设计出的最优励磁系统能够有效地增加系统的阻尼,提高系统的稳定性,且能够很好地抑制系统的低频振荡,并具有较好的鲁棒性。
Analysis of dynamic simulation shows that this optimal excitation system can increase the system damping, improving stability, with good low-frequency oscillation suppression and robustness.
在交流系统受到扰动后它通过跟踪交流系统某些参数的变化来调节直流输送的有功功率,从而达到阻尼整个系统功率振荡的目的。
Following up the change of some parameters in ac systems, it can regulate the active power transmitted by DC link and damp power oscillation in systems.
从热动力学理论出发,定量地证明回热器的自激振荡特性为负阻尼振荡。
Self-sustained oscillation characteristic of thermoacoustic stack is quantitatively proven based on thermodynamic theory to be negative damped oscillation.
为了抑制电力系统因负阻尼而产生的低频振荡,提高电力系统稳定性,设计了一种组合电力系统稳定器gpss。
A combinational electric system stable machinery GPSS is designed to fight back low frequency oscillation and to improve electric system stability.
热扩散可以被看成是一种极限温度阻尼振荡问题;而热可以以波动形式传输。
The heat diffuse can be considered as temperature oscillation under limiting damp, as well heat can be transfersed by the wave way.
在系统发生功率振荡时,通过改变转子励磁电压的相角调节双馈变速风电机组输出与振荡相关的阻尼功率,达到使风电场能够改善系统阻尼的目的。
During the power oscillation of a power system, a damping active power is injected into the network from the DFIG machine via regulating the rotor excitation voltage Angle.
根据同步发电机的振荡机制及影响励磁控制的各要素设计了可消除负阻尼的新型励磁控制方法。
Excitation adjustor which can eliminate negative-damping is designed according to the oscillation mechanism of the synchronous machine and the factors which affect the excitation control.
对几类函数波形和一组实测高空核爆电磁脉冲(HEMP)波形的验证结果表明,HEMP波形、余(正)弦阻尼振荡波形等信号的重建波形与原始波形符合很好。
The reconstruction of minimum phase signal, such as the HEMP waveform, cosine or sine exponentially damped waveform etc, shows good agreement with the original.
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