An aggregation method of wind farms model for studying power system low frequency power oscillation

2017 ◽  
Author(s):  
Jingtian Bi ◽  
Wenjuan Du ◽  
H. F. Wang
Keyword(s):  
Power System ◽  
Low Frequency ◽  
Wind Farms ◽  
Aggregation Method ◽  
Power Oscillation ◽  
Low Frequency Power ◽  
Frequency Power

Survey of Ambient Excitation Based Power Oscillation Analysis Methods

2012 ◽  
Vol 614-615 ◽  
pp. 1013-1018
Author(s):  
Chang Liu ◽  
Chang Song Li ◽  
Hua Qiang Li
Keyword(s):  
Power System ◽  
Large Scale ◽  
Low Frequency ◽  
Fundamental Principle ◽  
Low Frequency Oscillation ◽  
Operation Analysis ◽  
Power Oscillation ◽  
Oscillation Analysis ◽  
Low Frequency Power ◽  
Ambient Excitation

In large-scale power system, low frequency power oscillation is becoming a serious threat to the power system operation. Analysis of low frequency oscillation includes model-based method and ambient-excitation-based method. Based on the investigation of the related recently-published papers, this paper presents a survey of ambient-excitation-based method. Firstly, the fundamental principle and underlying theory of ambient-excitation-based method are summarized. Furthermore, several ambient-excitation-based methods are categorized and their characteristics are introduced.

scholarly journals Setting Scheme and Experimental Verification of Multi-Input PSS Parameters for Damping Low Frequency Power Swing in Multi-machine Power System

2002 ◽  
Vol 122 (1) ◽  
pp. 137-144 ◽  
Author(s):  
Yoshihiro Kitauchi ◽  
Haruhito Taniguchi ◽  
Takashi Shirasaki ◽  
Yoshinori Ichikawa ◽  
Masahiko Amano ◽  
...  
Keyword(s):  
Power System ◽  
Experimental Verification ◽  
Low Frequency ◽  
Power Swing ◽  
Low Frequency Power ◽  
Frequency Power

Wind model for low frequency power fluctuations in offshore wind farms

Wind Energy ◽  
2009 ◽  
Vol 13 (5) ◽  
pp. 471-482 ◽  
Author(s):  
A. Vigueras-Rodríguez ◽  
P. Sørensen ◽  
N. A. Cutululis ◽  
A. Viedma ◽  
M. H. Donovan
Keyword(s):  
Low Frequency ◽  
Wind Farms ◽  
Offshore Wind ◽  
Wind Model ◽  
Offshore Wind Farms ◽  
Power Fluctuations ◽  
Low Frequency Power ◽  
Frequency Power

scholarly journals Toward asleep DBS: cortico-basal ganglia spectral and coherence activity during interleaved propofol/ketamine sedation mimics NREM/REM sleep activity

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jing Guang ◽  
Halen Baker ◽  
Orilia Ben-Yishay Nizri ◽  
Shimon Firman ◽  
Uri Werner-Reiss ◽  
...  
Keyword(s):  
Basal Ganglia ◽  
Rem Sleep ◽  
Standard Procedure ◽  
Low Frequency ◽  
Nrem Sleep ◽  
Sleep Cycle ◽  
Advanced Parkinson’S Disease ◽  
Low Frequency Power ◽  
The Brain ◽  
Frequency Power

AbstractDeep brain stimulation (DBS) is currently a standard procedure for advanced Parkinson’s disease. Many centers employ awake physiological navigation and stimulation assessment to optimize DBS localization and outcome. To enable DBS under sedation, asleep DBS, we characterized the cortico-basal ganglia neuronal network of two nonhuman primates under propofol, ketamine, and interleaved propofol-ketamine (IPK) sedation. Further, we compared these sedation states in the healthy and Parkinsonian condition to those of healthy sleep. Ketamine increases high-frequency power and synchronization while propofol increases low-frequency power and synchronization in polysomnography and neuronal activity recordings. Thus, ketamine does not mask the low-frequency oscillations used for physiological navigation toward the basal ganglia DBS targets. The brain spectral state under ketamine and propofol mimicked rapid eye movement (REM) and Non-REM (NREM) sleep activity, respectively, and the IPK protocol resembles the NREM-REM sleep cycle. These promising results are a meaningful step toward asleep DBS with nondistorted physiological navigation.

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