power oscillation

In the Fuergang hydropower station, there happened a violent reactive power oscillation when the small reactor-starting generator was put into operating with the large generator.

长葛市佛耳岗水库水电站电抗分流式发电机并列运行时，出现剧烈无功振荡。

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With the development of the inter-area power system, the low frequency oscillation becomes one of the most primary factors to endanger the safe operation and restrict the through-put capacity of the electrical network.

随着互联电力系统规模的日益增大，系统互联引发的低频振荡问题成为危及电网安全运行、制约电网传输能力的最主要因素之一。

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However, the coming substantive power electronic equipments, impactive and nonlinear loads in power system lead to a series of power quality problems, such as voltage sag, voltage swell, voltage fluctuation, harmonics, voltage notch, impulse, oscillation transient and so on.

但随之而来的各种电力电子设备、冲击性与非线性负荷的大量投入，导致供电质量出现电压暂降、电压暂升、电压波动、谐波、电压缺口、脉冲与振荡暂态干扰等一系列电能质量问题。

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Verify fast, high magnification excitation system for power system low frequency oscillation effects.

验证快速、高放大倍数的励磁系统对电力系统低频振荡的影响。

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For some old style generator units, interactive power oscillation often occurs during the using process.

对于一些老式机组, 使用过程中经常出现功率交互振荡,原因是供油存在干扰造成的.

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A fuzzy supplementary controller is designed for UPFC to damp tie line power oscillation in interconnected power systems. The parameters of FDC ( Fuzzy Damping Controller) are optimized using the gradient descent training method and the genetic algorithm respectively.

设计了一种统一潮流控制器（UPFC）模糊辅助控制器，能够阻尼互联系统之间功率低频振荡，分别使用遗传算法和梯度下降法实现了模糊阻尼控制器（FDC）的参数优化。

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Low frequency oscillation restraint in power systems that include asynchronized turbogenerators

异步化汽轮发电机对电力系统低频振荡的抑制

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Thyristor-Controlled Series Compensation have multi-functions of damping low-frequency power oscillation, enhancing transient stability of the power system and mitigating sub-synchronous resonance.

可控串联补偿装置具有阻尼线路功率振荡、提高电力系统暂态稳定性、抑制次同步谐振等多种功能。

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In this paper, the stability condition of optical resonator is introduced, the power losses of stable resonator and the threshold condition of optical oscillation is discussed, and the formulation of the relationship between the gain coefficient of work substance and the losses factor is derived.

本文对光学谐振腔的稳定条件做了介绍，并讨论稳定谐振腔的功率损耗和光振荡的阈值条件，导出了工作物质的增益系数与损耗因子的关系式。

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Tentative Study of Inter-area Large Power Oscillation Mechanism Caused by the Local Mode

局部振荡引起区间大功率振荡的机理

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Analysis of Chaotic Power Oscillation on Weak Tie Line

弱联络线功率浑沌振荡研究

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The large amplitude power oscillation is harmful to reactor safety and is not allowed.

这种现象对反应堆的安全十分不利，是不能允许的。

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Based on the fact that electric power is output from the HF terminal of the frequency converter, this paper analyzes the causes and harms of higher harmonics, as well as the reasons for the power cable oscillation radiation during transmission and their solutions.

根据变频系统高频输出电能特点，分析高次谐波产生原因和危害，并给出在电力电缆传输过程中产生振荡辐射的原因和解决方法。

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The analysis of forced power oscillation in power system

电力系统强迫功率振荡分析

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Power System Stabilizers ( PSS ) are effective in damping the low frequency oscillation.

电力系统稳定器 ( PSS ) 的应用,在抑制低频振荡方面取得了明显的效果.

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