Abstract In this paper, the fusion estimation problem is investigated for a class of multi-rate power systems with randomly occurring delays in supervisory control and data acquisition (SCADA) measurements. The system measured by SCADA phasor measurement unit (PMU), state updating period allowed to be different from sampling periods PMU. phenomenon characterized set Bernoulli distributed random...

Phasor Measurement Units (PMUs) are in growing attention in recent power systems because of their paramount abilities in state estimation. PMUs are placed in existing power systems where there are already installed conventional measurements, which can be helpful if they are considered in PMU optimal placement. In this paper, a method is proposed for optimal placement of PMUs incorporating conve...

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Voltage sags are the most common power quality disturbance usually associated with power system faults, which can cause huge economic loss, making it the focus of emerging research. The proposed voltage sag detection technique for a single-line-to-ground (SLG) fault is presented using the PMU measurement data for improving the power quality. Various voltage sag detection techniques have been di...

In this paper, an efficient and comprehensive hybrid intelligent technique for the optimal placement of phasor measurement units (PMUs) is proposed to minimize the number of PMU installation subjected to full network observability. Three main purposes of PMUs output synchronous measurements are monitoring, control, and protection of power system. We have combined Binary Imperialistic Competitio...

In this paper, frequency oscillation has been present as it is an important issue in power systems, especially when joined to the new trend use alternative energies energy source, well be a big risk for inter-connection of modern electric networks. Wind farm acts and connected two buses on Iraqi system. Because low-frequency monitoring needs accurate fast, main objective propose novel online sy...

Phasor Measurement Units (PMUs) are starting to see increased deployment, enabling accurate measurement of power grid electrical properties to determine system health. Due to the costs associated with PMU acquisition and maintenance, it is practically important to place the minimum number of PMUs in order to achieve system complete observability. In this paper, we consider a variety of optimiza...

Part I of this paper set sets forth theory and algorithms for adaptive fault detection/location technique, which is based on Phasor Measurement Unit (PMU). This paper is Part II of this paper set. A new timing device named “Global Synchronism Clock Generator, GSCG” including its hardware and software design is described in this paper. Experimental results show that the synchronized error of ris...