Applications of wavelet transform on power engineering problems — A brief review

2017 ◽  
Vol 15 (03) ◽  
pp. 1730001
Author(s):  
Subramani Chinnamuthu ◽  
C. Vimala ◽  
A. A. Jimoh ◽  
Adedayo Ademola Yusuff
Keyword(s):  
Wavelet Transform ◽  
Power System ◽  
Review Paper ◽  
Power Engineering ◽  
System Stability ◽  
Engineering Research ◽  
Engineering Problems ◽  
Different Types ◽  
Power Measurements ◽  
Selection Of

The main scope of this paper is about the applications of wavelet transform (WT) on power engineering research. This review paper deals with the summary of applications of WT to different power system problems including transmission line faults detection, power quality issues, power forecasting, power measurements and power system stability. Different types of wavelet are used for the solution of various power engineering issues, and the selection of suitable wavelet for specific problems is also discussed in this paper with the support of literature.

Design of Filter based Wide Area Damping Controllers in Power System

2018 ◽  
Vol 19 (2) ◽  
Author(s):  
Mahendra Bhadu ◽  
Nilanjan Senroy
Keyword(s):  
Power Systems ◽  
Power System ◽  
Random Noise ◽  
System Stability ◽  
Wide Area ◽  
Analog Filter ◽  
Process Noise ◽  
Damping Controllers ◽  
Wide Area Damping Controller ◽  
Selection Of

AbstractIn this paper, the concept of analog filter circuit is used for designing of wide area damping controller (WADC) in power system. The designed continuous mode filter based WADC is robust enough to deal with the problem of imperfect communication medium, which include process noise, measurement noise and signal latency in wide area remote signal. Residue method is used for the selection of wide area control signal and controller location. Modelling of imperfect communication network is done using Pade approximation and by inserting Gaussian random noise. The effectiveness of filter based WADC as a power system stability agent is assessed in the frequency domain using two typical test power systems and via appropriate time domain simulations based upon the non-linear model on MATLAB/Simulink software platform.

Identification of Appropriate Wavelet for Vibration Study of Mechanical Impacts

2013 ◽  
Author(s):  
Seyed Majid Yadavar Nikravesh ◽  
Hossein Taheri ◽  
Peter Wagstaff
Keyword(s):  
Mathematical Model ◽  
Wavelet Transform ◽  
Wavelet Analysis ◽  
Wavelet Transformation ◽  
Local Response ◽  
Test Plate ◽  
Different Types ◽  
Experimental Response ◽  
The Impact ◽  
Selection Of

The purpose of this paper is to discuss the selection of the most appropriate wavelets to analyze the vibration response of structures due to mechanical impacts. For this reason the wavelet transformation is briefly introduced, then the different types of wavelets, which are commonly used in this type of application are presented. Subsequently, the effects of selecting different types of wavelet to study the vibrations of a mechanical system are evaluated using a mathematical model. Afterwards, the wavelet transform is used to analyze the experimental response caused by the impact of a hammer on a test plate. This shows that the existence of a zone of local response due to reinforcement under the plate’s cover can be distinguished using the wavelet analysis.

scholarly journals Formalized reliability analysis during the electric power systems modes management

2020 ◽  
Vol 216 ◽  
pp. 01008
Author(s):  
O.Yu. Sigitov ◽  
N.Sh. Chemborisova ◽  
I.D. Chernenkov
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
Electric Power System ◽  
Maximum Efficiency ◽  
System Control ◽  
Power System Control ◽  
Different Types ◽  
Selection Of

The current problem of the selection of the electric power system control nodes, which can be used to solve multicriterial problems of the consumers reliable supply with the electric power of the necessary quality of maximum efficiency is investigated. At the same time, a new method of making decisions while choosing electric power system control nodes is proposed. It is necessary to take into account a set of different types of indicators which characterize different properties of these nodes.

Potential Uses of Vinegar as a Medicine and Related in vivo Mechanisms

2016 ◽  
Vol 86 (3-4) ◽  
pp. 127-151 ◽  
Author(s):  
Zeshan Ali ◽  
Zhenbin Wang ◽  
Rai Muhammad Amir ◽  
Shoaib Younas ◽  
Asif Wali ◽  
...  
Keyword(s):  
Chemical Structure ◽  
Review Paper ◽  
Heart Diseases ◽  
Folk Medicine ◽  
Active Role ◽  
Current Review ◽  
Different Types ◽  
Positive Effect

While the use of vinegar to fi ght against infections and other crucial conditions dates back to Hippocrates, recent research has found that vinegar consumption has a positive effect on biomarkers for diabetes, cancer, and heart diseases. Different types of vinegar have been used in the world during different time periods. Vinegar is produced by a fermentation process. Foods with a high content of carbohydrates are a good source of vinegar. Review of the results of different studies performed on vinegar components reveals that the daily use of these components has a healthy impact on the physiological and chemical structure of the human body. During the era of Hippocrates, people used vinegar as a medicine to treat wounds, which means that vinegar is one of the ancient foods used as folk medicine. The purpose of the current review paper is to provide a detailed summary of the outcome of previous studies emphasizing the role of vinegar in treatment of different diseases both in acute and chronic conditions, its in vivo mechanism and the active role of different bacteria.

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