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...

This paper presents a novel algorithm for recovering missing data of phasor measurement units (PMUs). Due to the low-rank property of PMU data, missing measurement recovery can be formulated as a low-rank matrix-completion problem. Based on maximum-margin matrix factorization, we propose an efficient algorithm based on alternating direction method of multipliers (ADMM) for solving the matrix co...

Phasor measurement unit (PMU) technology is a need of the power system due to its better resolution than conventional estimation devices used for wide-area monitoring. PMUs can provide synchronized phasor and magnitude voltage current measurements state prevent blackouts. The drawbacks PMU are high cost device installation. main aspect using in electrical networks property observe adjacent buse...

Phasor data concentrators (PDCs) are the critical components of a wide area monitoring system (WAMS) in the smart grid. They are multi-processor devices employed to collect, concentrate, and synchronize phasor data that is from various phasor measurement units and from other PDCs. Because of their present significance and potential criticality for WAMS, reliability of PDCs has become a high pri...

This paper presents the fault detection technique in wide area power system network using Phasor Data Concentrator (PDC). Single line to ground (SLG) fault data of transmission line is processed using the WAMS technology. Phasor Data Concentrator (PDC) is primarily data collecting centres located at the control centre processing unit and is responsible for collecting all the PMUs data that is t...

The concept of using phasors to describe power system operating quantities dates back to 1893 and Charles Proteus Steinmetz’s paper on mathematical techniques for analyzing AC networks. More recently, Steinmetz’s technique of phasor calculation has evolved into the calculation of real time phasor measurements that are synchronized to an absolute time reference. Although phasors have been clearl...

1) Use of the complex wave oscillation method provided a measurement range of over 9 cmH201lls with a resolution of O.18 cmH20/1ls. 2) The respiratory system was expressed as a two-compartment model. By expressing the circuit characteristics as phasor loci, a method was shown whereby individual impedance parameter values could be derived frorn the measured impedance phasor loci. S) Vnder enflur...