该词条未找到_海词词典

您要查找的是不是：

In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system. 在音响设备中出现的振荡频率极低的低频振荡，常因放大系统的正反馈回路引起。
A combined power system adaptive stabilized apparatus GPSS is designed to suppress low frequency oscillation and to improve power system stability. 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自适应稳定器GPSS(以下简称自适应稳定器GPSS).
The influence of inertia constant (H_D) of induction motor on low frequency oscillation (LFO) was studied. 研究感应电动机惯性时间常数HD对电力系统低频振荡(LFO)的影响.
One is the low bus voltage at Omei substation;and the other is the low frequency oscillation problem. 目前台电系统中存在两个主要问题：一个是峨眉汇流排电压过低的问题，另一个是潜藏在区域间的低频振荡问题。
The validity study of Prony analysis for low frequency oscillation in power system.Electric Power,2001,11(34):38-41. Prony算法分析低频振荡的有效性研究.;中国电力;2001;11(34):38-41
A combination power system hybrid adaptive stabilizer GPSS is designed to suppress low frequency oscillation and to improve power system stability. 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混合自适应稳定器(GPSS)。
A combination power system hybrid adaptive stabilizer GPSS is designed to suppress low frequency oscillation andto improve power system stability. 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混合自适应稳定器(GPSS)。
The validity study of Prony analysis for low frequency oscillation in power system [J].Electric Power, 2001, 34(11): 38-41. Prony算法分析低频振荡的有效性研究[J].;中国电力;2001;34(11):38-41
The validity study of prony analysis for low frequency oscillation in power system[J].Electric Power,2001,11(34):38-41(in Chinese). Prony算法分析低频振荡的有效性研究[J].;中国电力;2001;11(34):38-41
Finally, we try to find out the reason of low frequency oscillation of a CMSDA ( Cascode Multi-Stage Distributed Amplifier ) and the way to solve this problem. 再来，我们利用一个设计失败的多级串叠分布式放大器来讨论低频震荡的产生原因与解决方法。
Thus it realized effective extraction of all parameters of LFO signals and put forward a new explanation of the mechanism of very low frequency oscillation. 其次运用该文推导的阻尼比计算公式提取各振荡模态分量阻尼比，从而实现低频振荡模态参数的有效提取。
A new type of extended small signal stability region (E-SSSR) is presented so that it can consider the low frequency oscillation phenomena captured in power system operations. 引入一种新的扩展小扰动稳定域的概念,以弥补原有小扰动稳定域无法考虑电力系统(超)低频振荡的不足。
Because of the biggish inertia of boiler, the disturbance of combustion ratio cannot invoke power system low frequency oscillation of resonance mechanism. 由于锅炉具有很大的惯性，锅炉燃烧率扰动很难引起电力系统发生共振机理的低频振荡。
This is effective in preventing low frequency oscillation (of a few Hz or less) and has a particular effect on the rising waveform for a step change in pressure. 这有效地防止了低频震荡（几个赫兹或者更低），并且对压力小幅变化的上升波形产生特别的影响。
Besides, the effect of power system stabilizer (PSS) in enhancing the damping during dominant low frequency oscillation mode of power grid is researched. 研究了电力系统稳定器对系统主导振荡模式的阻尼作用。
This paper starts from the cause of low frequency oscillation (LFO) and than points out that there are several ways to study the LFO including its rejection measures. 摘要从低频振荡的起因开始，指出目前研究低频振荡的几种方法，综述了抑制低频振荡的措施。
PSS has been proved to be the most economical and effective equipment for damping low frequency oscillation, which can perform well to both the local mode and the inter-area one. PSS 已被证明是阻尼低频振荡的最有效、经济的装置，对本地振荡模式和区域间振荡模式均有很好的效果；
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. 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。
WU Min-hui,ZHANG Rong-lin.Researches on the low frequency oscillation and its control methods of the interties between Fujian and East China [J].Fujian Powerand Electrotechnics , 2001,21 ( 1 ): 9-12. [1]吴敏辉;张榕林.;福建与华东联网后低频振荡及其抑制措施的研究[J]
In the context of the NCAR daily reanalysis data of 1998,this paper investigates the source or sink features of atmospheric LFO (low frequency oscillation) over the Tibetan Plateau in summer 1998. 使用1998年美国NCAR再分析的逐日资料,研究了1998年夏季青藏高原大气低频振荡的源、汇特征。