Results 101 to 110 of about 89,415 (299)
SensorsTo solve the problem of the large size of traditional industrial frequency phase-shift transformers and the harmonic distortion of multi-pulse wave rectifier systems, this paper proposes a three-stage shunt zigzag power electronic phase-shift transformer
Xiuqing Mu +6 more
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Towards a (more) electronic transmission and distribution (eT&D)
CES Transactions on Electrical Machines and Systems, 2017 The challenges and the path towards a (more) electronic transmission and distribution (eT&D) is presented in this paper. The challenges are first identified together with key stakeholders in the drive for grid modernization.
Don Tan, Damir Novosel
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Harmonic Analysis Of Power Electronic Transformer
, 2018 Transformer size can be reduced significantly by increasing the frequency of the transformer, which can be achieved by using several power electronic converters on both sides of the transformer. This high frequency transformer is called power electronic transformer, but high frequency increases iron loss significantly.
openaire +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
IEEE Access, 2019 For the electronic power transformer, the dc voltage balance is an important issue. Unbalanced dc voltages will degrade the performance of the device and may trigger the dc voltage protection.
Jie Tian +6 more
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Advanced Functional Materials, EarlyView.Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr +7 more
wiley +1 more source
Diance yu yibiaoCascaded power electronic transformer usually adopts large capacitance to suppress the capacitance voltage fluctuation of sub modules, which seriously limits the improvement of power density of power electronic transformer.
NIU Chunhao, XU Yonghai
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Application of transform in fault diagnosis of power electronics circuits
Scientia Iranica, 2012 AbstractA method based on S transforms and support vector machines was presented for fault diagnosis of power electronics circuits in which the S transform time-frequency analysis of the fault signal is used to extract the features corresponding to various faults. Then, fault types are identified through the pattern recognition classifier, based on SVM.
Rongjie Wang, Yiju Zhan, Haifeng Zhou
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Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)
Advanced Functional Materials, EarlyView.Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao +5 more
wiley +1 more source
Three phase power factor controller [PDF]
, 1984 A power control circuit for a three phase induction motor is described. Power factors for the three phases are summed to provide a control signal, and this control signal is particularly filtered and then employed to control the duty cycle of each phase ...
Nola, F. J.
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