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Study of the mandibular canal and its surrounding canals by multi-view cone-beam computed tomography. [PDF]
Insights ImagingChen Y +6 more
europepmc +1 more source
The Gut-Brain Axis in Alzheimer's: From Microbiota Genetics to Stigmasterol's Neuroprotection Mechanism. [PDF]
Degener Neurol Neuromuscul DisDing T +9 more
europepmc +1 more source
Voltage sag compensation with energy optimized dynamic voltage restorer
IEEE Transactions on Power Delivery, 2002 The compensation capability of a dynamic voltage restorer (DVR) depends primarily on the maximum voltage injection ability and the amount of stored energy available within the restorer. A new phase advance compensation (PAC) strategy for the DVR is proposed in order to enhance the voltage restoration property of the device.
Vilathgamuwa, Mahinda +2 more
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Predictive Voltage Control of Transformerless Dynamic Voltage Restorer
IEEE Transactions on Industrial Electronics, 2015This paper presents a predictive voltage control scheme for the effective control of a transformerless dynamic voltage restorer (TDVR). This control scheme utilizes the discrete model of a voltage source inverter and an interfacing filter for the generation of the switching strategy of inverter switches.
Chandan Kumar, Mahesh K Mishra
exaly +2 more sources
Multilevel Optimal Predictive Dynamic Voltage Restorer
IEEE Transactions on Industrial Electronics, 2010 This paper presents an optimal predictive controller for a multilevel converter-based dynamic voltage restorer (DVR), which is able to improve the voltage quality of sensitive loads connected to the electrical power network. The optimal predictive controlled multilevel DVR can restore sags and short interruptions while reducing the total harmonic ...
J. Dionísio Barros +1 more
openaire +3 more sources
Voltage flicker mitigation with dynamic voltage restorer
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC), 2010 This paper is concerned with a pre-flicker compensation strategy adopted by a dynamic voltage restorer (DVR) to mitigate voltage flicker in a power system. The DVR configuration based on flying capacitor multicell (FCM) converter is proposed to mitigate the voltage flicker because of taking the FCM converter advantages such as transformer-less ...
Arash Khoshkbar Sadigh +3 more
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Multilevel Dynamic Voltage Restorer
IEEE Power Electronics Letters, 2004This paper presents the implementation and control of a high voltage dynamic voltage restorer (HVDVR) for use in power distribution network to compensate for sags in utility voltages. The proposed HVDVR is implemented using a multilevel inverter topology with isolated DC energy storages, allowing the direct connection of the HVDVR to the distribution ...
P.C. Loh +3 more
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Research and design of dynamic voltage restorer
IEEE 10th International Conference on Industrial Informatics, 2012The demand on electrical power quality is ever increasing along with the growing technological advancement. Voltage sag is the most frequently happening problem on power system and might cause great economic loss. To solve this problem, Dynamic Voltage Restorer (DVR) is the most efficient and economic device at present.
Songsong Chen +3 more
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Supervisory control of dynamic voltage restorers
IEE Proceedings - Generation, Transmission and Distribution, 2004The impact of system issues on the performance and power rating of dynamics voltage restorers is examined. Algorithms to restore a network voltage sag or swell to given set points have been the subject of significant research in the past. The supervisory control scheme is examined to determine these set points.
Ramachandaramurthy, V. K. +5 more
openaire +4 more sources