Results 31 to 40 of about 1,369 (260)

A Priority-Based Synchronous Phasor Transmission Protocol Extension Method for the Active Distribution Network

Applied Sciences, 2019
With the advancement of active distribution network construction, to solve the shortcomings of the existing distribution network technology in distribution network perception and control, the relevant technologies of the Wide Area Measurement System ...
Weiqing Tao, Mengyu Ma, Ming Ding, Wei Xie, Chen Fang   +4 more
doaj   +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

Optimal µPMU Placement Considering Node Importance and Multiple Deployed Monitoring Devices in Distribution Networks

Energies
The placement of micro phasor measurement units in an active distribution network can improve the monitoring performance of the system. However, the price and placement cost of micro phasor measurement units are high, so existing research mostly focuses ...
Ruifeng Zhao, Jiangang Lu, Yizhe Chen, Yifan Gao, Kai Gan, Ming Li, Chengzhi Wei, Runhong Huang, Fan Xiao, Liang Che   +9 more
doaj   +1 more source

Analysis of Wide-Frequency Dense Signals Based on Fast Minimization Algorithm

Energies, 2022
To improve the detection speed for wide-frequency dense signals (WFDSs), a fast minimization algorithm (FMA) was proposed in this study. Firstly, this study modeled the WFDSs and performed a Taylor-series expansion of the sampled model.
Zehui Yuan, Zheng Liao, Haiyan Tu, Yuxin Tu, Wei Li   +4 more
doaj   +1 more source

Measurement accuracy verification of phasor measurement unit with dynamic phasor estimation

Archives of Electrical Engineering, 2018
Power systems that are highly loaded, especially by a stochastic supply of renewables and the presence of storages, require dynamic measurements for their optimal control. Phasor measurement units (PMUs) can be used to capture electrical parameters of a power system.
Bartłomiej Arendarski, Steffen Rabe, Wolfram Heineken, Przemysław Komarnicki   +3 more
openaire   +2 more sources

Childhood Acute Lymphoblastic Leukemia Survival in Western Kenya: Reduction in Early Deaths and Treatment Abandonment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background An earlier study on children diagnosed with acute lymphoblastic leukemia (ALL) at Moi Teaching and Referral Hospital (MTRH) in Kenya reported a low event‐free survival (EFS), excess treatment abandonment, and high induction mortality.
Gilbert Olbara, George Bogonko, Festus Njuguna, Sandra Langat, Martha Kipngetich, Dennis Njenga, Gertjan Johannes Kaspers, Terry Allen Vik   +7 more
wiley   +1 more source

Augmented Sensitivity Estimation Based Voltage Control Strategy of Active Distribution Networks With PMU Measurement

IEEE Access, 2019
The application of synchronized phasor measurement technology at distribution networks provides new options for voltage-to-power sensitivity estimation and voltage regulation.
Hongzhi Su, Peng Li, Peng Li, Xiaopeng Fu, Li Yu, Chengshan Wang   +5 more
doaj   +1 more source

Optimal Placement of Phasor Measurement Unit in Smart Grids Considering Multiple Constraints

Journal of Modern Power Systems and Clean Energy, 2023
The distribution of measurement noise is usually assumed to be Gaussian in the optimal phasor measurement unit (PMU) placement (OPP) problem. However, this is not always accurate in practice.
Tengpeng Chen, He Ren, Yuhao Sun, Markus Kraft, Gehan A. J. Amaratunga   +4 more
doaj   +1 more source

Tracking Health Related Quality of Life From Diagnosis to Follow‐Up Among Australian Children With Acute Lymphoblastic Leukaemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukaemia (ALL) is one of the most treatable forms of paediatric cancer; however, there is a substantial burden of treatment‐related toxicities (TRTs). In addition, the long‐term changes in children's health‐related quality of life (HRQoL) due to toxic treatments are not well understood.
Clare Ghows, Clarissa E. Schilstra, Karen McCleary, Nancy E. Briggs, Rishi S. Kotecha, Richard De Abreu Lourenco, Shanti Ramachandran, Ruelleyn Cockcroft, Rachel Conyers, Siobhan Cross, Luciano Dalla‐Pozza, Peter Downie, Tamas Revesz, Michael Osborn, Frank Alvaro, Claire E. Wakefield, Glenn M. Marshall, Toby Trahair, Marion K. Mateos, Joanna E. Fardell   +19 more
wiley   +1 more source

A harmonic model validation methodology for power generation units based on voltage-current phasor characteristic

International Journal of Electrical Power & Energy Systems
This paper proposes a comprehensive methodology to validate the harmonic model of power generation units based on the phasor (not only the magnitude) of harmonic quantities. A harmonic model validation method states “whether or how close a model emulates
Kia Malekian Boroujeni, Farhad Safargholi, Kaveh Malekian   +2 more
doaj   +1 more source