Application of phasor measurements and partial energy analysis in stabilizing large disturbances

Stanton, S. E.; Slivinsky, Charles; Martin, Ken; Nordstrom, J.

doi:10.1109/59.373953

Cited by 70 publications

(32 citation statements)

References 6 publications

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“…Over the years, many efforts have been focused on investigating the use of PMUs in wide area monitoring, protection, and control [4][5][6]. The PMU has gained wide acceptance as a tool for enhancing the situational awareness of the power grid.…”

Section: Introductionmentioning

confidence: 99%

Characterizing dynamic behavior of PMUs using step signals

Ren

Kezunovic

Stenbakken

2010

Int Trans Elec Energy Syst

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SUMMARYEvaluating performance of PMUs to verify the consistency of phasor measurements is of a great importance since it promotes the interoperability among PMUs from different manufacturers. This paper presents a set of test methodology and tools for evaluating the dynamic performance of PMUs when exposed to a step change of input signals. A phasor estimation scheme is proposed to achieve high accuracy of reference phasors. An interleaving technique applied on output phasors can equivalently increase the reporting rate and can precisely depict the transient behavior of a PMU under the step input. Four types of tests with balanced and unbalanced three-phase step signals are performed as reference signals to characterize the step responses. Three commercial PMUs are selected to perform step tests using the dynamic test system developed at NIST. A set of programs are developed based the dynamic test system to automate step test procedures. The test results are outlined at the end.

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Section: Introductionmentioning

confidence: 99%

Characterizing dynamic behavior of PMUs using step signals

Ren

Kezunovic

Stenbakken

2010

Int Trans Elec Energy Syst

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“…In reference [1][2][3][4], the power angle difference between any two generators is used as a transient instability indicator. If it exceeds a predefined threshold value, the power system is considered to enter transient instability status.…”

Section: Introductionmentioning

confidence: 99%

Development of a WAMS based test platform for power system real time transient stability detection and control

Zhao

Zhang

et al. 2016

Prot Control Mod Power Syst

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The real-time transient stability detection and emergency control technology based on wide area response has become a hot research area in power system stability studies. Several different technologies have been proposed, but lots of problems remain to be solved before they can be applied in practice. A wide area measurement system (WAMS) based test platform is developed for transient stability detection and control. The design as well as main function modules of the platform are introduced. In addition, three generator power angle prediction methods and six response based transient instability detection technologies are given. Results of engineering application demonstrate that the developed test platform can provide a real-time operation environment, which can effectively compare and analyze the validity and practicability of these transient stability detection technologies. Based on the measured perturbed trajectories from actual power systems or the Real-Time Digital Simulators (RTDS), the platform can realize the assessment and visual result presentation of various responses from different transient instability detection technologies. The test platform can be applied to different power systems and it is convenient to embed new transient instability detection modules. Meanwhile some deficiencies and shortcomings in engineering application are pointed out and corresponding suggestions are given. In conclusion, the hardware and software structure, function modulus and engineering applications are presented. The application in actual power systems shows that it has a good application perspective.

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“…We have preferred to state the problem in this way as we are making use of the IKF. 3 It is worth mentioning that, although distribution networks are characterized by unbalanced lines and unsymmetrical loads with consequent presence of different sequence components into the three-phase voltage and current phasors, we here consider, as a first approximation, the case of balanced networks. Therefore, we shall make reference to the direct sequence only.…”

Section: Introductionmentioning

confidence: 99%

“…In the last decade, the large use of the so-called Phasor Measurement Units (PMUs) for the monitoring of the transmission networks, has influenced the operational practices of these systems concerning the following aspects: i) system stability; ii) state estimation (SE); iii) system reliability; and iv) protections schemes (e.g. [3]- [9]). In view of the evolution of distribution networks from passive S. Sarri, R. Cherkaoui and M. Paolone are with the École Polytechnique Fédérale de Lausanne EPFL, Lausanne, Switzerland, (e-mail: styliani.sarri@epfl.ch, mario.paolone@epfl.ch, rachid.cherkaoui@epfl.ch).…”

Section: Introductionmentioning

confidence: 99%

“…As discussed in [30], it is worth noting that when synchrophasors measurements are available, the selection of the bus voltage phasor angle reference in the SE problem can be suitably modified compared to the traditional approach here used. It is also important to mention that, if PMU measurements are available, at least one of these should be located in correspondence of the slack bus in order to properly define equation (3).…”

Section: Introductionmentioning

confidence: 99%

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