我们得到了系统振荡的频率与内禀元激发的关系。
We obtain the relation between the frequency of the oscillation and the instric excitation of the system.
在大型电力系统中存在有自生的甚低频系统振荡。
In large interconnected power system, there have been spontaneous system oscillations at very low frequencies.
研究了将能量储存系统用于提高电力系统振荡稳定性的潜力。
This paper discusses the potential of applying energy storage systems to enhance power system oscillation stability.
采用改进的DFT算法后，算法具有不受系统振荡影响的特点。
After the improved DFT algorithm is applied, the new algorithm is not influenced by power system swing.
该系统特别适合那些具有纯滞后特性被控对象的控制，有效抑制系统振荡。
The system is suits the controlled plants with pure delay property especially. It can restrain the oscillation of the system.
分析了如何利用测量数据构造矩阵束并进行电力系统振荡模态辨识的方法。
Method of power system oscillation mode identification utilizing matrix pencil constructed from sampled data is presented.
针对单相重合闸与三相重合闸时系统振荡的特点，提出了新的距离加速保护方案；
In allusion to the characters of system oscillation during single-phase recloser and three-phase recloser, the author put forward a new distance protection accelerating scheme.
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.
采用浮动门槛、正序电流制动和静稳破坏后提高动作门槛值的方法，来防止系统振荡时误启动。
Measures, such as the floating of threshold, braking by positive sequence current, driving up the threshold during power swing, etc are suggested to prevent th.
位置回路采用PD控制算法，以增加系统相位裕度，减弱系统振荡，保证控制系统具有良好的动态特性。
The position loop use the PD control algorithm, to increase the system's phase margin, reduce the system's oscillation and ensure that the control system has good dynamic characteristics.
仿真和实际运行表明，系统切换变频泵时该控制器对水压的超调量和系统振荡均能起到很好的抑制作用。
The simulation and operation results show that the controller can effectively restrain water pressure overshoot and system oscillating when the frequency-conversion pump is switched.
提出一种闭环输入整形控制方案，它结合了具有振动阻尼器的输入整形器，用于抑制残留的多模式的灵活的系统振荡。
A closed-loop input shaping control scheme, which combines an input shaper with a vibration damper, is proposed for suppressing the residual oscillations of the multi-mode flexible systems.
为了验证所提控制方案对于抑制系统振荡及提高系统稳定性的效益，对一个三机系统做了动态物理模型实验及数字仿真。
In order to verify the effective-ness of the control approach on the suppression of system oscillations and the enhancement of system stability, laboratory tests and digital...
提出了一种基于综合相量幅值和相位变化规律实时测量电力系统振荡中振荡频率及瞬时频率的算法，利用三相电流经相应变换获得综合相量。
An algorithm based on the magnitude and phase Angle of the generalized phasor to measure instantaneous frequency and swing frequency while the power swing occurred is presented.
完成了基于汇编语言的软件设计，在DSP开发平台CCS2.0下完成了软件调试，实验结果证实了提出的方案的有效性，避免了系统振荡。
Software based on assemble language is finished and debugged successfully under the DSP platform of CCS2.0. Experimental results validate system design above.
高压、超高压输电线路的开关为分相开关，当对侧开关单相偷跳后，在线路负荷比较重、同时重合闸动作时间比较长的情况下可能引发系统振荡。
HV and EHV transmission lines are equipped with split-phase breaker. If a longer reclosing time is setting in a heavy load line, the system may swing after the trip without fault of remote breaker.
分析了电力系统在周期性负荷扰动下的振荡失稳问题。
The power system instability caused by oscillation under periodical load disturbance was analyzed.
探讨了系统平均视在频率及振荡频率的概念。
After discussing the conceptions of power system average frequency and power system oscillation period.
利用这一系统，研究了家兔的肺阻抗和动态顺应性与振荡频率的依赖关系。
With this system, a study has been made on the correlation between respiratory impedance and dynamic compliance of rabbit, and oscillatory frequency.
对于天气尺度系统，海温热力场则主要激发出大气低频振荡。
For synoptic scale systems, the SST thermal forcing mainly excites the atmospheric low - frequency oscillation.
提出了电力系统混沌振荡自适应控制的一种方法。
An adaptive control method for chaos oscillation in power system is put forward in this paper.
然后将速率限制环节置于人机闭环系统中，利用描述函数法对驾驶员诱发振荡（PIO）机理进行了研究。
With the rate limiting element in man machine closed loop system, we analyse the PIO using the method of describing function.
固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。
Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
以上这些关键技术问题的解决为开发振荡压路机的智能化控制系统奠定了坚实的基础。
Above the key technologies solved will lay the solid foundation for intelligent compaction control system of oscillatory roller to be studied.
该研究结果对探讨电力系统低频振荡的产生原因具有一定的参考价值。
The conclusion can provide reference to research into the causes of power system low frequency oscillation .
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.
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.
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