Results 31 to 40 of about 173,277 (307)

Fast Bus Voltage Control of Single-Phase Grid-Connected Converter With Unified Harmonic Mitigation

open access: yesIEEE Access, 2023
This paper presents a comprehensive analysis of the harmonic sources of the single-phase grid-connected voltage source converter (VSC), which leads to an alternative approach for DC bus voltage control of the VSC under grid voltage distortion with a ...
Akekachai Pannawan   +3 more
doaj   +1 more source

Determination of density of states of thin high-$T_c$ films by FET type microstructures

open access: yes, 2006
A simple electronic experiment with a field effect transistor type microstructure is suggested. The thin superconductor layer is the source-drain channel of the layered structure where an AC current is applied.
Mishonov, Todor, Stoev, Martin
core   +2 more sources

Electrical Tree Growth Characteristics in Epoxy Resin With Harmonic Superimposed DC Voltage

open access: yesIEEE Access, 2019
HVDC converters can generate harmonic voltage, which distorts the DC voltage quality and threatens epoxy resin insulation reliability. In this paper, the electrical tree growth was investigated in epoxy resin under harmonic superimposed DC voltage.
Boxue Du, Meng Tian, Jingang Su, Tao Han
doaj   +1 more source

Enhanced Torque Control of a PMSM Supplied by a Four-Leg Voltage Source Inverter Using the Third Harmonic [PDF]

open access: yes, 2008
This paper investigates an electrical drive composed of a four-leg voltage source inverter and a three-phase starconnected surface permanent magnet synchronous machine with concentrated windings. The inverter fourth leg is clamped to the neutral point of
GYSELINCK, Johan   +2 more
core   +6 more sources

Generation of second harmonic component of fault current in a doubly‐fed induction generator and mitigation measures for transformer protection

open access: yesIET Renewable Power Generation, 2021
The transient characteristics of short‐circuit current (SCC) in doubly‐fed induction generator (DFIG) are quite different from the widely researched conventional synchronous machines.
Tao Zheng   +5 more
doaj   +1 more source

Harmonic resonance on parallel high voltage transmission lines [PDF]

open access: yesIEEE Transactions on Power Delivery, 1997
Harmonic resonance has been observed, measured and modeled on parallel 500-kV lines that are about one wavelength at 2100 Hz, the 35th harmonic. A seemingly small harmonic injection at one location on the system causes significant problems some distance away such as telephone interference.
J.R. Harries, J.L. Randall
openaire   +1 more source

Studi Kualitas Energi Listrik Gedung Fakultas Teknik Universitas Bangka Belitung

open access: yesJurnal Serambi Engineering, 2021
One of the performances of the electric power system can be seen from the quality of electrical energy. In this study, the measurement of the quality of electrical energy was carried out using a power quality meter to obtain the values of current ...
Asmar Asmar, Wahri Sunanda
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

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