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SAPF – eine seltene, aber schwere Komplikation

intensiv, 2019
ZusammenfassungVon der Sepsis-assoziierten Purpura fulminans sind überwiegend Kinder zwischen einem und drei Jahren und Jugendliche zwischen 16 und 18 Jahren betroffen. Eine frühe Diagnose ist auch deswegen so wichtig, damit die Wahrscheinlichkeit einer Amputation so gering wie möglich ...
Jasmin Arrich, Frank M. Brunkhorst
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Adaptive control for MMC-SAPF with balanced and unbalanced PCC voltage

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
Three-phase three-wire shunt active power filter (SAPF) with traditional positive-sequence control can only compensate part of the nonlinear load current harmonics if the PCC voltage changes from balanced to unbalanced condition. Changes of both nonlinear load current harmonic components and equivalent circuit for modular multilevel converter based ...
Chengjing Li   +4 more
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Subarachnoidal-pleural fistula (SAPF) as an unusual cause of persistent pleural effusion. Beta-trace protein as a marker for SAPF. Case report and review of the literature

Acta Clinica Belgica, 2014
We describe a case of a 56-year-old woman who developed a recurrent pleural effusion after a thoracoscopic resection of an anterior bulging thoracic disc hernia (level D9-D10). Despite several evacuating pleural punctions, dyspnea reoccurred due to recurrent pleural effusion, the same side as the disc resection.
S, Deseyne   +4 more
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A new control algorithm for supercapacitor based SAPF topology

2018 Technologies for Smart-City Energy Security and Power (ICSESP), 2018
This paper presents a Modified Leaky Least Mean Square (MLLMS) control algorithm for a three-phase Supercapacitor based Shunt Active Power Filter (SSAPF) to mitigate the power quality problems in the grid. Specially, alleviation of Source current harmonics, reactive power, and load unbalancing in the system are realised by the efficient control ...
Mrutyunjaya Mangaraj   +3 more
openaire   +1 more source

Comparison of three evolutionary algorithms for harmonic mitigation using SAPF

2011 6th International Conference on Industrial and Information Systems, 2011
For power quality improvement, shunt active power filters (SAPF) having PWM controlled voltage source inverter (VSI) topology is extensively used in distribution networks, which utilizes the PI controller for reference voltage tracking. PI controller tuning with the assumption of linear PWM model leads to unsatisfactory results under varying operating ...
Rambir Singh   +2 more
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Admittance Modeling, Analysis, and Reshaping of Harmonic Control Loop for Multiparalleled SAPFs System

IEEE Transactions on Industrial Informatics, 2021
Large-scale harmonic current pollution exists widely in power grid due to the massive applications of power electronic equipment, which affects the efficiency and reliable operation of the whole system. Owing to its excellent controllability, dynamic response performance, and compensation precision, the multiparalleled shunt active power filters (SAPFs)
Kangli Liu   +6 more
openaire   +2 more sources

Sparse LMS control algorithm for Fuel Cell based SAPF

2016 IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics Engineering (UPCON), 2016
Nowadays, modification and hybridization of the Custom Power Device (CPD) topology are occurring massively to provide the better power quality service in the distribution system. The selection of a suitable adaptive control algorithm for such CPD is also a tough job for the researchers due to the complexity of the power system.
Penthia Trilochan   +3 more
openaire   +1 more source

Fuel Cell Based Sapf System with Dual Mode Operation

2020 5th International Conference on Devices, Circuits and Systems (ICDCS), 2020
This paper presents a comprehensive fuel cell based shunt active power filter (SAPF) system operated in dual mode of power quality improvement and sustaining the load power requirement during supply interruption condition. The former mode of this system is based on synchronous reference frame (SRF) control algorithm and for the latter mode it is ...
Nishant Patnaik   +2 more
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Harmonic mitigation and resonance damping of MMC-SAPF with low switching frequency

2021 IEEE 4th International Electrical and Energy Conference (CIEEC), 2021
The shunt power capacitor will cause parallel resonance in the medium voltage (MV) power distribution system with nonlinear load. MMC-SAPF with low switching frequency is applied to handle this problem. Firstly, topology and control of device including modulation strategy is studied.
Congzhi Cheng   +6 more
openaire   +1 more source

Performance analysis of SRF based SAPF with PI and FUZZY controllers

2015 International Conference on Control Communication & Computing India (ICCC), 2015
Current harmonics are the major problem that seen in the distributed system due to the wide spread usage of the harmonic loads. Conventionally, the harmonic related problems are reduced by using the passive harmonic filters. The performance of the passive filter largely depends up on the system impedance and it subjected to change frequently.
Sajin Sahadev, null Manju B
openaire   +1 more source

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