1) LF oscillation
低频震荡
2) Amplitude of LFF
低频震荡的幅度
3) frequency oscillation
频率震荡
1.
The structure of Changdu power grid and the process of frequency oscillation accident are summed up,it is analyzed theoretically that the reason of the system oscillation is the ferromagnetic saturation of TV,low-frequency load reduction scheme for Changdu power grid is also analyzed,and the method against misoperation of low-frequency load reduction is put forward.
全文综述了昌都电网结构及电网频率震荡事故的过程,从理论上分析了中性点不接地的配电网中常会发生电压互感器(TV)饱和引起的铁磁谐振可能引起系统频率的震荡,并分析了昌都电网低周减载方案,提出了防止低周减载误动的方法。
4) low-frequency oscillation
低频振荡
1.
Research on low-frequency oscillation of Hunan power system under inter-connected state power gird;
全国联网条件下湖南电网低频振荡的研究
2.
Select swing curve to distill low-frequency oscillation information;
选择合适的曲线提取低频振荡信息
3.
Load characteristics effect on low-frequency oscillation damping of power systems;
负荷特性对电力系统低频振荡阻尼的影响
5) low frequency oscillations
低频振荡
1.
On the basis of the research results of Hilbert-Huang Transform and the application of it to the field of power system signal analysis in recent years,this paper summaries the study of power quality analysis,the harmonic identification,power system low frequency oscillations,parameter identification of synchronous machine,the partial discharge(PD) signal monitoring.
主要根据本课题组近几年Hilbert-Huang变换(HHT)理论及其在电力系统信号分析领域应用的研究成果,综述了HHT理论在电能质量检测、电力系统谐波分析、电力系统低频振荡、同步电机参数辨识、局部放电信号检测等问题的应用,并探讨了HHT理论应用的进一步研究的方向:低频振荡在线分析,同步电机参数辨识精度的提高,窄带噪声、随机脉冲等干扰下的局部放电信号在线检测等问题。
2.
The frequent and massive power exchange on tie-line between different areas makes the low frequency oscillations, especially in the inter-area mode it is more serious, and it impairs system stability and its performance.
为了对系统的振荡模式有一全面了解,根据系统所依据的数学模型介绍了各种常用的低频振荡分析方法及最新发展趋势,论述了一次系统所采用的各种抑制振荡措施及其优缺点,并提出了一种新的稳定控制思路。
3.
This paper introduces a novel method-HHT which is invented to deal with non-stationary signal to the analysis of low frequency oscillations.
论文将一种新的非线性、非平稳信号的处理方法- HHT(Hilbert-Huang transform)方法,应用于电力系统低频振荡分析之中。
6) low frequency oscillation
低频振荡
1.
Damping low frequency oscillation after the interconnection of East China and Fujian power grids by adopting TCSC technology;
采用可控串补技术解决华东—福建联网低频振荡问题
2.
Prony analysis of low frequency oscillation based on wavelet pretreatment technology;
基于小波预处理技术的低频振荡Prony分析
3.
Study on two-stage control for Unified Power Flow Controller to damp tie-line low frequency oscillation;
阻尼联络线低频振荡的UPFC两阶段控制方法研究
补充资料：脑震荡后综合征
脑震荡后综合征
postconcussional syndrome
部分颅脑损伤者从恢复期后逐渐形成“脑震荡后综合征”，其主要原因可能是他们曾被诊断为“脑震荡”。患者从此便长期自述头痛、头晕、失眠、记忆力减退、思想不能集中等一系列症状。症状消失后又复发，甚至可增添新的症状，但神经系统检查和神经系特殊检查均属正常。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条