Results 31 to 40 of about 45,105 (281)

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

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

Robust Hybrid Linear State Estimator Utilizing SCADA and PMU Measurements

IEEE Transactions on Power Systems, 2021
This paper intends to improve the accuracy of power system State Estimation (SE) by introducing a hybrid linear robust state estimator. To this end, automatic bad data rejection is accomplished through an M-estimator, i.e.
A. S. Dobakhshari, M. Abdolmaleki, V. Terzija, S. Azizi   +3 more
semanticscholar   +1 more source

Optimal PMUs placement considering ZIBs and single line and PMUs outages

AIMS Energy, 2020
Phasor measurement unit (PMU) is among the most important measurement devices in modern power systems. It measures the voltage and current phasors which have both magnitude and phase angle using a common timing reference. These measurements are utilized in real time applications of electrical power systems. The main drawback of PMUs is its high cost so
Abdelazeem A. Abdelsalam, Karim M. Hassanin, Almoataz Y. Abdelaziz, Hassan Haes Alhelou   +3 more
openaire   +2 more sources

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, Alfredo Vaccaro, Behrendt K., Celano T., Dickerson B., Dion A., Giuseppina Formato, Hu Y., Iacoviello A., Larsson M., Lombardi M. A., Mack P., Madani V., Madani V., Orpen O., Phadke A. G., Schenato L., Terzija V., Ullo S., Yang Y.   +19 more
core   +1 more source

Data-Driven Event Detection of Power Systems Based on Unequal-Interval Reduction of PMU Data and Local Outlier Factor

IEEE Transactions on Smart Grid, 2020
With the deployment of phasor measurement units (PMU) and wide area measurement system (WAMS), it is feasible to have an insight into the events occurred in power systems based on measured data.
Shengyuan Liu, Yuxuan Zhao, Zhenzhi Lin, Yilu Liu, Yi Ding, Li Yang, Shimin Yi   +6 more
semanticscholar   +1 more source

Epstein-Barr virus reactivation is not causative for post-COVID-19-syndrome in individuals with asymptomatic or mild SARS-CoV-2 disease course

BMC Infectious Diseases, 2023
Purpose Post-COVID-19-Syndrome (PCS) frequently occurs after an infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). However, the understanding of causative mechanisms is still limited.
Alexandra Domnica Hoeggerl, Verena Nunhofer, Wanda Lauth, Natalie Badstuber, Nina Held, Georg Zimmermann, Christoph Grabmer, Lisa Weidner, Christof Jungbauer, Nadja Lindlbauer, Heidrun Neureiter, Tuulia Ortner, Maria Flamm, Jürgen Osterbrink, Eva Rohde, Sandra Laner-Plamberger   +15 more
doaj   +1 more source

A Graph-Theoretic Approach for Optimal Phasor Measurement Units Placement Using Binary Firefly Algorithm

Energies, 2023
The pursuit of achieving total power network observability in smart grids using Phasor Measurement Units (PMUs) carries a significant promise of real-time Wide-Area Monitoring, Protection, and Control (WAMPAC).
Onkemetse Tshenyego, Ravi Samikannu, Bokani Mtengi, Modisa Mosalaosi, Tshiamo Sigwele   +4 more
doaj   +1 more source

Communication infrastructure for situational awareness enhancement in WAMS with optimal PMU placement

Protection and Control of Modern Power Systems, 2021
Real time monitoring and control of a modern power system has achieved significant development since the incorporation of the phasor measurement unit (PMU).
B. Appasani, A. V. Jha, S. Mishra, A. N. Ghazali   +3 more
semanticscholar   +1 more source

PMU abnormal data identification algorithm based on stream clustering

电力工程技术, 2023
In order to ensure the accurate application of the data collected by the phasor measurement unit (PMU), it is necessary to eliminate the abnormal data in its measured values.
DENG Xiaoyu, WANG Xiangbing, CAO Huazhen, WANG Liuhuo, YAN Hongfeng, WANG Hongyu   +5 more
doaj   +1 more source