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Dusmanta Kumar Mohanta - One of the best experts on this subject based on the ideXlab platform.

  • A Brief Review of Phasor Measurement Units as Sensors for Smart Grid
    Electric Power Components and Systems, 2016
    Co-Authors: Dusmanta Kumar Mohanta, Cherukuri Murthy, Diptendu Sinha Roy
    Abstract:

    AbstractBasic Phasor Measurement Units are the sensing devices that capture power system Phasors synchronously over wide geographical areas with high precision by means of global positioning system enabled time-stamping. The data obtained from Phasor Measurement Units form the basis of all monitoring and control actions for wide-area Measurement systems, and hence, Phasor Measurement Units are the edifice of a wide-area Measurement system. Within the purview of Phasor Measurement Units, there have been diverse research contributions made in past decades. This article presents a brief review of Phasor Measurement Units performing their functions as smart sensors. The review includes their evolution, optimal placement, applications, and reliability assessment. The main contributions pertain to segregation of research findings into broad domains with corroborations to validate Phasor Measurement Units as the efficient sensors for the smart grid.

  • A graph theory approach for reliability analysis of Phasor Measurement Units using frequency and duration technique
    Proceedings of the Institution of Mechanical Engineers Part O: Journal of Risk and Reliability, 2014
    Co-Authors: Debomita Ghosh, Anvesha Mishra, T. Ghose, Dusmanta Kumar Mohanta
    Abstract:

    Failure frequency and steady-state availability are two key indices for reliability analysis of Phasor Measurement Units. Phasor Measurement unit is the edifice of wide area Measurement system and thus reliable operation is essential. Markov model is the general basis for evaluation of reliability indices, but it involves matrices of large dimension. This article describes the general purpose graphical approach for obtaining the two key reliability indices of Phasor Measurement Units from flow graph based on Markov model. It is concerned with the calculation of availability, frequency and outage duration of Phasor Measurement Units by module wise reliability analysis. This method itself is sufficient for sensitivity analysis of Phasor Measurement unit and helps in identifying the critical module within the Phasor Measurement unit.

  • communication feasibility analysis for smart grid with Phasor Measurement Units
    IEEE Transactions on Industrial Informatics, 2013
    Co-Authors: Debomita Ghosh, Tirthadip Ghose, Dusmanta Kumar Mohanta
    Abstract:

    The conventional power system is going through a paradigm change towards smart grid. Phasor Measurement Units (PMUs) have emerged as the edifice for information technology related to wide-area monitoring systems (WAMSs) for power system monitoring, information communication, and control purposes. The PMUs require communication links for a complex interconnected power grid, and proper spatial coordination plays a vital role for wireless communication network. Geographical information system (GIS) provides a rich set of functions to analyze the power network incorporating geospatial features. This paper investigates the impact of topological attributes on commissioning of wireless communication network for PMUs incorporating GIS aided analysis and to optimize one of the PMU location as main control station. This will not only serve for monitoring automation purposes, but will also ensure control automation. Case studies related to the eastern grid of India corroborate the efficacy of GIS-aided wireless communication for linking PMUs.

Masood Parvania - One of the best experts on this subject based on the ideXlab platform.

  • the pulse coupled Phasor Measurement Units
    International Conference on Smart Grid Communications, 2014
    Co-Authors: Lorenzo Ferrari, Reinhard Gentz, Anna Scaglione, Masood Parvania
    Abstract:

    We propose a cross-layer sensor network architecture to convert Measurements acquired by a population of sampling devices, into synchronous sensor array Measurements, using a network synchronization protocol that is inspired by the dynamics of pulse coupled oscillators (PCO). We study the specific application of these sensors in the distribution section of the Smart Grid as low cost Phasor Measurement Units, that we refer to as the Pulse Coupled PMUs (PC-PMUs). The paper studies the impact of synchronization error on the quality of the Phasor Measurements analytically and via numerical simulations, considering a solution in which sensing and synchronization signals are both over the power-line medium. The analysis is valid for generic networks where the connectivity is radial, and the numerical results are carried on a 33-bus test network representing a typical distribution feeder.

  • SmartGridComm - The pulse coupled Phasor Measurement Units
    2014 IEEE International Conference on Smart Grid Communications (SmartGridComm), 2014
    Co-Authors: Lorenzo Ferrari, Reinhard Gentz, Anna Scaglione, Masood Parvania
    Abstract:

    We propose a cross-layer sensor network architecture to convert Measurements acquired by a population of sampling devices, into synchronous sensor array Measurements, using a network synchronization protocol that is inspired by the dynamics of pulse coupled oscillators (PCO). We study the specific application of these sensors in the distribution section of the Smart Grid as low cost Phasor Measurement Units, that we refer to as the Pulse Coupled PMUs (PC-PMUs). The paper studies the impact of synchronization error on the quality of the Phasor Measurements analytically and via numerical simulations, considering a solution in which sensing and synchronization signals are both over the power-line medium. The analysis is valid for generic networks where the connectivity is radial, and the numerical results are carried on a 33-bus test network representing a typical distribution feeder.

Buhan Zhang - One of the best experts on this subject based on the ideXlab platform.

  • an effective fault location technique for transmission grids using Phasor Measurement Units
    International Journal of Electrical Power & Energy Systems, 2012
    Co-Authors: Zhen Jiang, Shihong Miao, Hao Xu, Buhan Zhang
    Abstract:

    Abstract This paper presents an effective fault location technique for transmission grids based on Phasor Measurement Units (PMUs). High accuracy in fault location is achieved by using both the fault observability with PMUs placement and an accurate distributed parameter line model for the transmission lines. The work performed in this paper is provided with high performance which is simplicity, sensitivity, stability and featuring robustness to the uncertainties in fault inception angle, load current and fault path resistance, and the accuracy and reliability of the calculation for the technique is very high. This paper illustrates the characteristics of the proposed algorithm and evaluates its performance by using transient fault data obtained from PSCAD/EMTDC simulations.

Elias Kyriakides - One of the best experts on this subject based on the ideXlab platform.

  • optimal placement of Phasor Measurement Units for power system observability
    IEEE Transactions on Power Systems, 2008
    Co-Authors: Saikat Chakrabarti, Elias Kyriakides
    Abstract:

    This paper proposes a method for optimal placement of Phasor Measurement Units (PMUs) for complete observability of a power system for normal operating conditions, as well as for single branch outages. A binary search algorithm is used to determine the minimum number of PMUs needed to make the system observable. In case of more than one solution, a strategy is proposed to select the solution resulting in the most preferred pattern of Measurement redundancy. The proposed method is used to benchmark the optimal PMU placement solutions for the IEEE 14-bus, IEEE 24-bus, IEEE 30-bus and New England 39-bus test systems. The proposed method is applied on a 298-bus system to determine the optimal placement of PMUs when conventional Measurements are available.

O P Malik - One of the best experts on this subject based on the ideXlab platform.

  • on line coherency recognition and identification of the reduced order system using Phasor Measurement Units
    International Review of Electrical Engineering-iree, 2013
    Co-Authors: Abdellah Shamisa, Mehdi Karrari, O P Malik
    Abstract:

    Phasor Measurement Units are increasingly being deployed in modern power systems for smart management of the networks. One of important application of such Units is to check the system stability conditions. Traditional methods for transient stability assessments have gained little attention in power industry, as they need right modeling of the large-scale power networks with nonlinear models for generators and loads, which are not readily available. In this paper, a new technique is presented for on-line coherency recognition and identification of the reduced order system. In the proposed method, the only requirement is to have access to some Measurement data from Phasor Measurement Units. The new method involves: coherency recognition, model order reduction and parameter estimation. Finally, time domain simulation of the reduced order system is used for the transient stability assessment. Simulation results show that identified reduced order model by the proposed method is valid for transient stability assessment even if the operating conditions and system configurations and parameters are not available or change, as it only uses the on-line Measurement data. The result in the proposed algorithm is independent of the kind of disturbance and its location in power system