电力系统强迫功率振荡为持续的周期性小扰动所引起低频振荡现象。
Power System forced power oscillation is a kind of low frequency oscillation caused by persistent periodic small disturbance.
本文通过对UPFC实施合理控制，以期望快速显著地平息扰动后系统的功率振荡。
The thesis aims to apply an appropriate control on UPFC to achieve a fast suppression for power system oscillation after some disturbance.
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.
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.
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.
用伪随机振荡技术测量了高通量工程试验堆（HFETR）不同功率水平时堆的频率特性。
Using pseudorandom oscillation technique, frequency characteristics in different power levels are measured in HFETR.
根据激光束的强度分布信息，可得到激光束的其他空间参数，如激光器的振荡模式、光束发散角、光束功率、光斑半径等重要参数。
The distribution of laser beams' intensity leads to such important spatial parameters as oscillation modes of laser device, divergence Angle of laser beams, the power of laser beams, laser radius etc.
文章最后通过比较这两种模型在偏离优化耦合状态下平均振荡势功率变化情况，发现本文中的模型2看来比模型1具有更高的合理性。
By comparing the variation of mean oscillatory potential power of these two models when they deviated from the optimal coupling state, it seemed that model 2 was much more reasonable than model 1.
电磁感应加热电路设计包括功率电路、控制电路、振荡和驱动电路等单元，阐述系统的电路设计。
Electromagnetic induction heating circuit design includes power circuit, control circuit, oscillations and driving circuit modules expounded on the circuit design.
因此通过改变端面抽运功率的比例，提高光束质量，并实现对振荡光的控制。
Therefore, the beam quality can be improved and the oscillation light can be controlled by changing the proportion of the end-pumping power.
对三参数序列应用功率谱和交叉谱分析得出，其主要周期变化为准两周振荡。
Analyzing the sequence of the parameters by the power and cross spectra yields main periodic changes of quasi-two-week oscillation.
因而引起振荡模式的变化，腔的失稳，激光输出功率变化的复杂化。
As a result, it induces oscillating mode change, laser cavity unstable, and the complicated change of laser output power.
基于该模型，分析了激光器振荡频率偏移与输出功率变化特性。
The characteristics of oscillation frequency shift and output power changes of the laser diode are analyzed by using the theoretical model.
讨论了泵浦光及振荡光的空间分布变量、晶体长度和透射率对输出功率的影响。
The effect on output power of distribution of space variation, crystal length and transmissivity has been discussed in detail.
结果表明，熔烧温度影响输出功率随拉伸长度振荡的曲线形状及调制度。
It is shown that the shape of the oscillating curves of the output power versus the elongation length and its depth of modulation are influenced by the fusion temperatures.
本文首先利用琼斯矩阵算法对高功率氧碘激光器腔内的偏振特性进行了分析，并得出结论，谐振腔内的本征振荡一般为椭圆偏振。
The polarization characteristics in the high power COIL resonator is analyzed by Jones calculus, and draw a conclusion that, in general the eigen-polarization state is elliptical polarization.
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.
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.
主要阐述了实现振荡式微波动态寿命试验的方法，以及不同于常规的对受试功率器件进行内部式加热控温的技术研究。
It details the dynamic testing method under microwave oscillation, and the inside heating up technique for tested devices which is different from ordinarily methods.
传统的PSS使用本地可测量的发电机电磁功率、转速等作为输入信号以抑制低频振荡。
The traditional PSS use the local signal such as the generator electromagnetism power or shaft speed as its input to restrain low frequency oscillation.
本发明公开了减少功率逆变器在高频操作下的分谐波振荡。
The present invention discloses reduction of submultiple oscillation of power inverter in high-frequency operation.
结合双包层掺镱光纤(YDCF)和主振荡功率放大(MOPA)技术，利用熔融拉锥的光纤侧面耦合器，设计和实验研究了全光纤结构的脉冲光纤放大器。
Using the side-pumped coupler made from fused tapered fiber, the Yb-doped double-cladding fiber (YDCF) master oscillation power amplification (MOPA) with all-fiber structure is experimentally studied.
模式资料的功率谱及动能的分析表明，10 ~20天振荡确实比30 ~60天振荡更突出地存在于热带大气中。
Analyses of the power spectra and kinetic energy show that in the tropical atmosphere, the simulated 10 ~ 20 day oscillation is markedly distinct from the simulated 30 ~ 60 day oscillation.
在2000伏到4000伏的电压范围内，都测得了4毫米波段的高频振荡功率。
From 2000 volts to 4000 volts, the microwave oscillatory power measured is in 4mm-band.
提高端面抽运功率占有率，可在一定程度上减小热透镜效应对振荡光束尺寸和衍射损耗的影响。
The influences of the thermal lens effect on the oscillation beam radius and diffraction loss can be reduced by increasing the proportion of the end-pumping power.
泵浦半径越大，振荡光初始光子数横模结构波动引起的输出脉冲峰值功率波动越大；
The greater the pumping radius is, the greater the fluctuation of output pulse peak power caused by the fluctuation of oscillating light initial photon number mode distribution will be;
当激光功率超过产生自导引阈值功率时，激光束斑沿着传输光轴方向振荡。
For laser power exceeding the dritical power of self-guiding, self-guiding occurs and laser beam oscillates along the propagation direction.
技术上曾经的失误在于，因疏忽导致了不合理的振荡槽路电容等价并联低值冷却水路水电阻，形成异常功率分流附加损耗问题。
The technical failure lies in ignoring the surge slot capacitor parallel connection with low value water cooling electric resistance, and induce abnormal power diffluence wasting.
负荷越靠近发电机，系统电压将越不易发生振荡失稳，但鞍结分岔对应的最大功率传输极限将减小。
When the load is near to generators, the possibility of voltage collapse caused by system voltage oscillate and the power limit corresponding to saddle-node bifurcation will decrease.
实验结果表明本文控制方案不仅能使中小功率异步电动机轻载运行时节能，还使其电磁转矩振荡减小。
These results indicate that the proposed control scheme not only saves energy while in light running of medium-low power asynchronous motors but also decreases the surge of the electromagnetic torque.
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