Results 21 to 30 of about 7,837,746 (330)
Fast DC Offset Removal for Accurate Phasor Estimation using Half-Cycle Data Window [PDF]
Journal of Electrical and Computer Engineering Innovations, 2022 Background and Objectives: Current and voltage signals' distortion caused by the fault in the power system has negative effects upon the operation of the protective devices.
H. Sardari, B. Mozafari, H. A. Shayanfar
doaj +1 more source
Efficient detection for multifrequency dynamic phasor analysis [PDF]
, 2016 Analysis of harmonic and interharmonic phasors is a promising smart grid measurement and diagnostic tool. This creates the need to deal with multiple phasor components having different amplitudes, including interharmonics with unknown frequency locations.
Frigo, Guglielmo +2 more
core +1 more source
Optimal PMU Placement for Power System Dynamic State Estimation by Using Empirical Observability Gramian [PDF]
, 2014 In this paper the empirical observability Gramian calculated around the operating region of a power system is used to quantify the degree of observability of the system states under specific phasor measurement unit (PMU) placement.
Kang, Wei, Qi, Junjian, Sun, Kai
core +3 more sources
Energies, 2018 Micro phasor measurement units (μPMU) installed in active distribution networks are very useful for improving observability by acquiring system real-time data.
Jiang Li +4 more
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Improved BPSO for optimal PMU placement [PDF]
, 2015 Optimal phasor measurement unit (PMU) placement involves the process of minimizing the number of PMU needed while ensuring entire power system network completely observable.
Rahman, NHA, Theodoridis, M, Zobaa, AF
core +1 more source
Dynamic phasor and frequency estimator for phasor measurement units
IET Generation, Transmission & Distribution, 2010 Synchrophasors and frequency estimations play an increasingly important role in power systems. Discrete Fourier transform (DFT) may introduce errors into phasor and frequency estimations under dynamic conditions, such as power oscillation. A dynamic phasor and frequency estimator for phasor measurement units (PMUs) is proposed to improve accuracy by ...
R.K. Mai, Z.Y. He, L. Fu, W. He, Z.Q. Bo
openaire +1 more source
A Novel Multi-Area Distribution State Estimation Approach for Active Networks
Energies, 2021 This paper presents a hierarchically distributed algorithm for the execution of distribution state estimation function in active networks equipped with some phasor measurement units.
Mohammad Gholami +4 more
doaj +1 more source
Phasor estimation using conditional maximum likelihood: Strengths and limitations [PDF]
, 2015 International audienceThis paper focuses on the estimation of the phasor parameters in three-phase power systems for smart grid monitoring. Specifically, it investigates the use of the Conditional Maximum Likelihood (ML) for phasor parameter estimation ...
Belouchrani, A +2 more
core +2 more sources
Linear Phasor Estimator Assisted Dynamic State Estimation
IEEE Transactions on Smart Grid, 2018 Measurements provided by the phasor measurement units (PMUs) in a power network can be highly erroneous. Furthermore, some generating units may not have a local PMU, therefore it may not be possible to obtain high accurate and reliable results based on the previously studied dynamic state estimation approaches, which rely on the raw measurements ...
Alireza Rouhani, Ali Abur
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Vulnerability analysis of satellite-based synchronized smart grids monitoring systems [PDF]
, 2014 The large-scale deployment of wide-area monitoring systems could play a strategic role in supporting the evolution of traditional power systems toward smarter and self-healing grids. The correct operation of these synchronized monitoring systems requires
Ahmed faheem Zobaa +19 more
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