Results 31 to 40 of about 4,310,555 (258)

Improved design of passive damping for single phase grid‐connected LCL filtered inverter considering impedance stability

IET Power Electronics
Grid‐connected inverters with an inductor–capacitor–inductor (LCL) filter usually require the implementation of damping in the filter to suppress the resonance associated with the filter and hence ensure internal stability.
Ramy Ali, Hamed Heydari‐doostabad, Shahab Sajedi, Terence O'Donnell   +3 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

A novel and easy‐to‐implement modulation scheme for reducing modulation complexity in modular multilevel converter

IET Power Electronics
Modulation strategy plays a key role in the operation of modular multilevel converters (MMC). Although many studies have been carried out on its optimization in MMC, the limitations of hardware implementation are seldom considered.
Zichen Wang, Zhijie Liu, Ke‐Jun Li, Jinxin Dou, Zhonglin Guo, Xiaoxue Ge   +5 more
doaj   +1 more source

UUDAT based on the modular multilevel converter and diode bridges for high-voltage DC application

The Journal of Engineering, 2019
Conventional unidirectional DC/DC converters for high-voltage direct current application employ DC/AC/DC technology and suffer from high converter cost and power loss.
Meng Zhou, Wang Xiang, Wenping Zuo, Weixing Lin, Jinyu Wen, Zhujun Xie   +5 more
doaj   +1 more source

Tuning harmonic absorption of voltage source converters

, 2010
This paper develops a tool for controlling the harmonic absorption of hysteretic controlled voltage source converters that are connected to a power system. Each VSC is controlled by a state feedback control input to a hysteretic comparator.
Zare, F, Ghosh, Arindam, Firuz Zare, Gerard Ledwich, Arindam Ghosh, Ledwich, Gerard, zare, F., Ledwich, G.   +7 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Avid Convertors

, 2014
Avid Convertors in racks.https://repository.belmont.edu/ownphotos/1206/thumbnail ...
Ocean Way Nashville
core   +1 more source

Analysis and improvement of the reactive power cascade control strategy for MMC‐HVDC receiving‐end converter connected to weak grid

IET Generation, Transmission & Distribution
The weak AC grid in a modular multilevel converter modular multilevel converter based high voltage direct current (MMC‐HVDC) receiving‐end system requires faster reactive power support from the receiving‐end MMC.
Junhua Xu, Guopeng He, Yong Liu, Songqin Tang, Daiyu Xie, Mingyuan Chen   +5 more
doaj   +1 more source

Analysis of power transmission limit for the VSC-HVDC feeding weak grid

The Journal of Engineering, 2019
The power transmission characteristics of the high-voltage DC (HVDC) feeding system are the key issues to evaluate the ability of the grid to eliminate DC power.
Aijun Wu, Zhichang Yuan, Hong Rao, Baorong Zhou, Hongxin Li   +4 more
doaj   +1 more source

Topology for VSC transmission

, 2001
The increasing rating and improved performance of self-commutated semiconductor devices have made DC power transmission based on voltage-source power convertors (VSCs) possible. This technology is called VSC transmission.
Cartwright, P., Horton, P., Andersen, B., Xu, L., B.R. Andersen   +4 more
core   +1 more source