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A novel method for locating the source of sustained oscillation in power system using synchrophasors data

Protection and Control of Modern Power Systems 2020年第1期5卷 340-351页

作者： mohd Zuhaib mohd rihan mohd Tayyab Saeed Electrical Engineering Department Zakir Husain College of Engineering and TechnologyAligarh Muslim University(AMU)AligarhIndia Al-Mostajed Technologies Pvt Ltd DubaiUAE

Large interconnected power systems are usually subjected to natural oscillation(NO)and forced oscillation(FO).NO occurs due to system transient response and is characterized by several oscillation modes,while FO occurs due to external perturbations driving generation *** to NO,FO is considered a more severe threat to the safe and reliable operation of power ***,it is important to locate the source of FO so corrective actions can be taken to ensure stable power system *** this paper,a novel approach based on two-step signal processing is proposed to characterize FO in terms of its frequency components,duration,nature,and the location of the *** recorded by the Phasor Measurement Units(PMUs)in a Wide Area Monitoring System(WAMS)is utilized for *** PMU data usually contains white noise and appears as multi-frequency oscillatory signal,the first step is to de-noise the raw PMU data by decomposing it into a series of intrinsic mode functions(IMF)using Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise(ICEEMDAN)*** most appropriate IMF containing the vital information is selected using the correlation *** second step involves various signal processing and statistical analysis tools such as segmented Power Spectrum Density(PSD),excess kurtosis,cross PSD *** achieve the desired *** analysis performed on the simulated two-area four-machine system,reduced WECC-179 bus 29 machine system,and the real-time power system PMU data set from ISO New England,demonstrates the accuracy of the proposed *** proposed approach is independent of complex network topologies and their characteristics,and is also robust against measurement noise usually contained in PMU data.

关键词： Forced oscillation(FO) Natural oscillation(NO) Phasor measurement unit(PMU) Wide area monitoring system(WAMS) Empirical mode decomposition(EMD)etc

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Vulnerability Analysis of Wide Area Measurement System in the Smart Grid

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Smart Grid and Renewable Energy 2013年第6期4卷 1-7页

作者： mohd rihan Mukhtar Ahmad M. Salim Beg Electrical Engineering Department AMU Aligarh India Electronics Engineering Department AMU Aligarh India.

The smart grid will be a power grid more “aware” of its operating state and having the ability to self-heal. These features may be incorporated into the grid by implementing a phasor measurement units based wide area measurement system. Such a system will help in better real time monitoring and control of the grid. However, the wide area measurement system is subject to challenges with respect to its security. In this paper, a comprehensive analysis of security issues with a wide area measurement system is presented and the research efforts required to be taken are identified. Moreover, the effect of communication failure on a PMU installed system has been presented using integer linear programming.

关键词： Wide Area Measurement Security PMU Smart Grid Smart Grid Security

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