Results 21 to 30 of about 79,309 (294)

Prediction of switching impulse breakdown voltage of complex gap based on SVM [PDF]

Archives of Electrical Engineering, 2022
Complex gaps may be formed when carrying out live working in substations, while the discharge characteristics of complex gaps are different from those of single gaps.
Zhenpeng Tang, Yuancheng Qin, Changsheng Wu, Ronghuan Mai   +3 more
doaj   +1 more source

Impact of PWM strategies on RMS current of the DC-link Voltage Capacitor of a dual-three phase drive [PDF]

, 2014
The major drawback of usual dual three-phase AC machines, when supplied by a Voltage Source Inverter (VSI), is the occurrence of extra harmonic currents which circulate in the stator windings causing additional losses and constraints on the power ...
ROUHANA, Najib, DUGUEY, Jean-François, Jean-Francois Duguey, SEMAIL, Eric, Eric Semail, Najib Rouhana   +5 more
core   +1 more source

Distribution Network Low Voltage Prediction Method Based on Least Squares Support Vector Machine

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Due to the lack of a direct functional relationship between voltage and voltage related parameters in the distribution network, it is difficult to scientifically carry out low voltage prediction. Therefore, a low voltage prediction method based on least squares support vector machine is proposed.
Zhiyang Yao, Qingren Jin, Guo Min, Weidong Chen   +3 more
openaire   +1 more source

Machine learning based hosting capacity determination methodology for low voltage distribution networks

, 2023
Publisher Copyright: © 2023 The Authors. IET Generation, Transmission & Distribution published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology.For the past few years, the addition of renewable energy sources has been ...
Qammar, Naveed, Mahmoud, Karar, Ammar Arshad, Miller, Robert John, Robert John Miller, Lehtonen, Matti, Karar Mahmoud, Matti Lehtonen, Naveed Qammar, Arshad, Ammar   +9 more
core   +1 more source

DC Voltage Balancing Strategy of a Bipolar-Output Active Rectifier for More Electric Aircraft Based on Zero Vector Redistribution

IEEE Access, 2021
The ±270 V bipolar dc distribution has become an attractive power supply scheme in more electric aircraft (MEA). In this paper, a dc voltage balancing strategy based on zero vector redistribution (ZVR) is proposed for a three-phase coupled ...
Yajun Zhao, Wenxin Huang, Feifei Bu
doaj   +1 more source

A pre-intervention study of malaria vector abundance in Rio Muni, Equatorial Guinea: their role in malaria transmission and the incidence of insecticide resistance alleles. [PDF]

, 2008
BACKGROUND: Following the success of the malaria control intervention on the island of Bioko, malaria control by the use of indoor residual spraying (IRS) and long-lasting insecticide-treated nets (LLITN) was extended to Rio Muni, on the mainland part of
Mohloai, P., Govender Dayanandan, Ramdeen, Varsha, Kleinschmidt, Immo, Ramdeen Varsha, Bass, C. G., Schwabe, C, Govender, D, Ramdeen, V., Kleinschmidt, I., Edu Amado, Govender, D., Edu, Amado Edjang, Mohloai, Peter, Kleinschmidt Immo, Bass, Chris, Yellot Lee, Edu, AE, Bass, C, Maharaj, R, Yellot, Lee, Ridl Frances C, Schwabe Christopher, Maharaj, Rajendra, Torrez, M, Ramdeen, V, Mohloai, P, Schwabe, C., Ridl, Frances C, Torrez Miguel, Ridl, F. C., Ridl, FC, Torrez, Miguel, Maharaj, R., Yellot, L., Mohloai Peter, Govender, Dayanandan, Torrez, M., Edu, A. E., Schwabe, Christopher, Yellot, L, Bass Chris, Maharaj Rajendra, Kleinschmidt, I   +43 more
core   +1 more source

A Method for the Simultaneous Suppression of DC Capacitor Fluctuations and Common-Mode Voltage in a Five-Level NPC/H Bridge Inverter

Energies, 2019
To suppress the direct current (DC) capacitor voltage fluctuations and the common-mode voltage (CMV) in a three-phase, five-level, neutral-point-clamped (NPC)/H-bridge inverter, this paper analyzes the influence of all voltage vectors on the neutral ...
Ming Wu, Zhenhao Song, Zhipeng Lv, Kai Zhou, Qi Cui   +4 more
doaj   +1 more source

Probability Density Function of Three-Phase Ellipse Parameters for the Characterization of Noisy Voltage Sags

IEEE Access, 2020
This work deals with the statistical analysis of additive noise impact on the space-vector ellipse parameters used to detect and classify three-phase voltage sags. In fact, since voltage waveforms are always corrupted by additive noise and harmonics, the
Diego Bellan
doaj   +1 more source

Machine Learning-Based Fault Location for Smart Distribution Networks Equipped with Micro-PMU

Sensors, 2022
Faults in distribution networks occur unpredictably, causing a threat to public safety and resulting in power outages. Automated, efficient, and precise detection of faulty sections could be a major element in immediately restoring networks and avoiding ...
Hamid Mirshekali, Rahman Dashti, Ahmad Keshavarz, Hamid Reza Shaker   +3 more
doaj   +1 more source

Insecticide resistance in Culex quinquefasciatus from Zanzibar: implications for vector control programmes. [PDF]

, 2012
\ud \ud Zanzibar has a long history of lymphatic filariasis (LF) caused by the filarial parasite Wuchereria bancrofti, and transmitted by the mosquito Culex quinquefasciatus Say.
Ali, Abdullah S., Mohammed, Khalfan, Khalfan Mohammed, Khatib, Bakari O., Machin, Camille, Kelly-Hope Louise A, Louise A Kelly-Hope, Ali, Abdullah S, Jones, Chris, Mcha Juma, Mohammed Khalfan, Khatib, Bakari O, Juma Mcha, Ranson, Hilary, McHa, Juma, Jones Christopher M, Abdullah S Ali, Kelly-Hope, Louise, Ranson, Hilary; id_orcid, Silas Majambere, Majambere Silas, Christopher M Jones, Bakari O Khatib, Kelly-Hope, Louise A, Machin Camille, Ali Abdullah S, Camille Machin, Jones, Christopher M, Khatib Bakari O, Majambere, Silas, Hilary Ranson, Ranson Hilary   +31 more
core   +1 more source