This paper presents a fault classification method for transmission lines based on voltage phasors using classification and regression trees (CART). The proposed method is intended to aid system operators in understanding the outputs of a PMU only state estimator. Faults are classified into four categories when the estimator is positive sequence and into ten categories when the estimator is thre...

This paper presents an event identification process in complementary feature extractions via convolutional neural network (CNN)-based classification. The CNN is a suitable deep learning technique for addressing the two-dimensional power system data as it directly derives information from measurement signal database instead of modeling transient phenomena, where measured synchrophasor systems ar...

Secure and reliable opertation of the grid requires real time monitoring and control of entire power system. Phasor measurement units (PMU) are being deployed for real time monitoring and analysis of power system. The most important factor to be considered in placement problem is observability of power system with minimum number of PMUs. This paper proposed an Integer Linear Programming (ILP) b...

Widespread placement and high data sampling rate of current generation of Phasor Measurement Units (PMUs) in Wide Area Monitoring Systems (WAMS) result in huge amount of data to be analyzed and stored, making efficient storage of such data a priority. This paper presents a generalized compression technique that utilizes the inherent correlation within PMU data by exploiting both spatial and tem...

Nowadays, in modern management and control applications, line parameters need to be known more accurately than the past achieve a reliable operation of distribution grids. Phasor Measurement Units (PMUs) may improve estimation processes, but accuracy result is affected by all elements PMU-based measurement chain, particular instrument transformers. Current transformers (CTs) are nonlinear there...

Islanding detection is a necessary function for grid connected distributed generators. Usually, islanding detection methods can be classified as two catalogues: remote detecting methods and local detecting methods. Most of them have limitation and defects when they are applied in photovoltaic power stations. Recently synchronous phasor measuring units (PMU) is proposed to be applied for islandi...

In a large and complex interconnected power system, the measurement of synchronized bus voltage line current plays vital role in monitoring precise control various sophisticated electrical equipment for secure reliable operation. Phasor units (PMUs) are incorporated into wide area system to extract different signals phasors. this paper, capacity PMU phasor estimation algorithm is explored based...

With the rapid growth of usage of phasor measurement units (PMUs) for modern power grids, the application of synchronized phasors (synchrophasors) to real-time voltage security monitoring has become an active research area. This paper presents a novel approach for fast determination of loading margin using PMU data from a wide-area monitoring system (WAMS) to construct the voltage stability bou...

This paper explored a novel method for strategic monitoring of a power system to schematically monitor power system variables that are sensitive to transients. The characteristics of a fully developed transient or power swing increase frequency slip rates, generator pole slips, rotor out-of-step etc. whose effects lead to loss of synchronism of coherent generators in a power system. When these ...

The Supervisory Control and Data Acquisition (SCADA) State Estimator (SE) and the Phasor Measurement Units (PMU’s) network constitute the communication infrastructures meant to provide the “smart grid” dispatcher with wide-area bus phase angles and other data, from which the operational status of the grid can be assessed— if the measurements are not compromised somewhere along their way to the ...