This article develops a computationally efficient fault-detection method for power systems, by exploiting phasor measurement unit (PMU) data and Hessian locally linear embedding (HLLE) technique. First, via HLLE technique, high-dimensional PMU are transformed into low-dimensional coordinates, which effectively captures the fluctuations of data. Next, based on feature space T-squared statistic i...

This paper describes the latest developments in the wide area monitoring of electrical power grids, based on IEEE C37.118.1-2011 synchrophasor measurements. It outlines the fundamentals of synchrophasor systems, and focuses on the latest technological advancements and practical applications deployed in the existing and emerging power grids. With the emphasis on higher utilization of power syste...

Abstract Accurate acquisition of transmission line parameters is the basis for grid condition monitoring and data analysis, which great significance safe economic operation grid. With widespread use phasor measurement unit (PMU) technology, wideband information in can be exploited, broadens new direction parameter identification. In this paper, a method proposed to identify frequency based on i...

This paper proposes a novel online measurement-based Wide-Area Voltage Control (WAVC) method using Phasor Measurement Unit (PMU) data in power systems with Flexible AC Transmission System (FACTS) devices. As opposed to previous WAVC methods, the proposed does not require any model knowledge or participation of all buses and considers both active reactive perturbations. Specifically, exploits re...

The paper presents the design principles of a Phasor Data Concentrator (PDC) that implements both the absolute and relative time data pushing logics together with a third one that aims at minimizing the latency introduced by the PDC without increasing the data incompleteness, as suggested in the IEEE Guide C37.244-2013. The performance of the aforementioned logics are assessed and compared in t...

A data compression system capable of providing real-time streaming high-resolution continuous point-on-wave (CPOW) and phasor measurement unit (PMU) measurements is proposed. Referred to as adaptive subband (ASBC), the proposed technique partitions signal space into subbands adaptively compresses signals based on each subband's active bandwidth. The conforms existing industry standards, making ...

The goal of the proposed procedure in this dissertation is the implementation of phasor measurement unit (PMU) based instability detection for islanding prediction procedures using decision tree and neural network modeling. The islanding in the power system define as a separation of the coherent group of generators from the rest of the system due to contingencies, in the case that all generator...

In some recent articles, the spoofing of Phasor measurement unit (PMU) GPS receiver has been highlighted as a threat to power grid protection system. Having spoofed PMU GPS signals, one can manipulate the measurements and inject bad data to power grid protection system. The previous anti spoofing methods are all based on GPS signal analysis. The mentioned methods are just able to detect spoofin...