Joint placement of phasor and conventional power flow measurements for fault observability of power systems

Kavasseri, Rajesh G.; Srinivasan, Sudarshan K.

doi:10.1049/iet-gtd.2010.0791

Cited by 52 publications

(36 citation statements)

References 15 publications

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“…According to the results obtained, the number of PMUs has been decreased greatly in comparison with proposed methods in . For instance, in , at least seven and eight PMUs are needed, respectively, for 14‐bus IEEE test system. By using the proposed algorithm, only five PMUs are needed on buses 2, 4, 6, 8 and 9.…”

Section: Resultsmentioning

confidence: 95%

“…Optimal placement of phasor measurement units (PMUs) for fault observability is studied in , . The author of formulates an optimization problem so that fault location can be performed using the bus impedance matrix and by only voltage measurements, which can be distant from the fault line.…”

Section: Introductionmentioning

confidence: 99%

“…The author of formulates an optimization problem so that fault location can be performed using the bus impedance matrix and by only voltage measurements, which can be distant from the fault line. Other methods for fault‐location observability separate the entire network into smaller sub networks and ensure the possibility of accurate two‐ or multi‐ended fault location for each of them. However, these methods may not lead to the minimum number of PMUs.…”

Section: Introductionmentioning

confidence: 99%

“…Wide-area impedance based fault-location methods utilizing the bus impedance matrix of the network and synchronized voltage and current measurements, which are not necessarily taken from the fault line, are presented in [18][19][20]. These impedance-based methods use both pre-and post-fault measurements and model the fault current sources as voltage source behind constant known impedance.Optimal placement of phasor measurement units (PMUs) for fault observability is studied in [18], [21,22]. The author of [18] formulates an optimization problem so that fault location can be performed using the bus impedance matrix and by only voltage measurements, which can be distant from the fault…”

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confidence: 99%

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A new algorithm for fault location on transmission lines by optimal PMU placement

Jegarluei

Dobakhshari

Ranjbar

et al. 2014

Int. Trans. Electr. Energ. Syst.

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Summary In this paper, the problem of placing a minimum number of phasor measurement units (PMUs) in a transmission system is considered so that faults on all lines of the network can be diagnosed and located irrespective of their locations. For this purpose, a PMU placement algorithm is applied to calculate the required data for impedance‐based fault location of any fault line in the network, achieving the full potential of the circuit laws throughout the system. Another algorithm is then proposed to compute the voltage and current values of the fault line for fault‐location purposes. Moreover, as many networks are already equipped with PMUs, the proposed algorithm makes it possible to locate faults on more lines of such networks compared to previous methods. The proposed algorithm for PMU placement is examined for 14, 30, 39 and 118 bus IEEE test systems. Additionally, fault location by synchronized voltage and current measurements, which can be remote from the faulted line, is performed on the 118‐bus IEEE test system. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

A new algorithm for fault location on transmission lines by optimal PMU placement

Jegarluei

Dobakhshari

Ranjbar

et al. 2014

Int. Trans. Electr. Energ. Syst.

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“…A Binary Integer Programming technique for instantaneous PMUs placement and conventional power flow measurements for fault observability in power systems proposed in [66]. The formulation is initially based on a nonlinear programming problem is unsolvable therefore initial formulation results in a binary non-linear integer programming problem that is transformed into a corresponding ILP problem through Boolean implications.…”

Section: Integer Programming (Ip)mentioning

confidence: 99%

Artificial Intelligence Versus Conventional Mathematical Techniques: A Review for Optimal Placement of Phasor Measurement Units

Negash

Khan

Yohannes

2016

Technol Econ Smart Grids Sustain Energy

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The Phasor Measurement Unit (PMU) is a contemporary metering device installed on system to enable the power system monitoring and control. PMUs are most accurate and advance time synchronized technology which provides measurements of voltages at the buses and also current phase values which are connected to those buses where these PMUs are located. PMU placement on each bus of a system is difficult to achieve either due to cost factor or due to non-existence limitation of communication facilities in some parts of the system. Moreover, as a consequence of Ohm's Law, when a PMU is placed at a bus, neighboring busses also become observable. This implies that a system can be made observable with a lesser number of PMUs than the number of busses. It is necessary to determine the minimum number of PMUs for entire observability of the power network. The optimal placement of PMUs (OPP) problem can be solved by various techniques. Hence in this paper a comprehensive review is presented on the OPP problems under the characterization of heuristic and mathematical methodologies. Also a comparison between

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A critical review of methods for optimal placement of phasor measurement units

Johnson

Moger

2020

Int Trans Electr Energ Syst

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Summary Situational awareness of the electric power system is the need of the hour. This is in the wake of recent blackouts in various parts of the world. These blackouts could have been prevented with better telemetry and real‐time monitoring of power system states. A fast and reliable measuring system with devices optimally employed across the network shall enable reliable system operation. Faster situational awareness and visualization helps the system operator to take faster preventive measures and maintain system stability. Wide Area Monitoring System uses phasor measurement units (PMUs) to measure power system states. PMUs measure synchronously real‐time voltages at various buses and current phasors, which are flowing toward these buses. But, there is a need to optimally find the locations for installation of PMUs in the network for an observable system, with minimum investment. This optimal placement of PMUs (OPP) is a binary optimization problem, combinatorial in nature. In this paper, progress achieved until now in the field of OPP studies are consolidated. A discussion on the characteristics of problem formulations and shortcomings of methods and constraints considered has been done. Challenges have been highlighted to provide a good foundation for new researchers.

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Joint placement of phasor and conventional power flow measurements for fault observability of power systems

Cited by 52 publications

References 15 publications

A new algorithm for fault location on transmission lines by optimal PMU placement

A new algorithm for fault location on transmission lines by optimal PMU placement

Artificial Intelligence Versus Conventional Mathematical Techniques: A Review for Optimal Placement of Phasor Measurement Units

A critical review of methods for optimal placement of phasor measurement units

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