Results 301 to 310 of about 10,262,280 (355)

Second-harmonic alternating current polarography

Australian Journal of Chemistry, 1966
The technique of second-harmonic a.c. polarography is discussed from the viewpoints of theoretical basis, experimental requirements, and scope of application. The theoretical relation is given for the second-harmonic current-component of a straightforward electrochemical reaction under conditions of a.c, polarography.
HH Bauer, DCS Foo
openaire   +1 more source

Combined Resonant Controller and Two-Degree-of-Freedom PID Controller for PMSLM Current Harmonics Suppression

IEEE transactions on industrial electronics (1982. Print), 2018
This paper presents a new control method to suppress current harmonics for permanent magnet synchronous linear motor (PMSLM) that is applied in the miniature microsecond laser cutting system.
Zhenbao Pan, Fei Dong, Jiwen Zhao, Lijun Wang, Hui Wang, Yinyi Feng   +5 more
semanticscholar   +1 more source

Research on Return Traction Current Harmonics

International Conference on Embedded and Multimedia Computing, 2020
The diagnostic tool of code current parameters and return traction current interferences is proposed. This apparatuses allows to analyze the spectrum and the value of interferences in the track circuits and to determine their sources.
T. Serdiuk, M. Feliziani, K. Serdiuk
semanticscholar   +1 more source

A New Control Architecture With Spatial Comb Filter and Spatial Repetitive Controller for Circulating Current Harmonics Elimination in a Droop-Regulated Modular Multilevel Converter for Wind Farm Application

IEEE transactions on power electronics, 2019
Circulating current control is one of the critical issues in modular multilevel converters (MMCs). When a frequency-droop-regulated MMC is used to integrate an offshore wind farm into an high-voltage dc transmission system, the variation in its operating
S. Kolluri, N. Gorla, Rajesh Sapkota, S. K. Panda   +3 more
semanticscholar   +1 more source

Current International Harmonization Efforts

2009
Efforts towards international cooperation or harmonization can occur at varying levels – at the level of technical and scientific requirements, of dossier format and content, or of assessment and review practices. Three contrasting models for regional cooperation in drug regulation harmonization, the corporate, populist, and cooperative, are described ...
openaire   +1 more source

Harmonic reduction in thyristor converters by harmonic current injection

IEEE Transactions on Power Apparatus and Systems, 1976
The paper describes analytical and experimental results for a new method of current harmonic reduction in thyristor converters. The principle of the method is to modify the current waveforms on the d.c. windings of the converter transformer by injecting harmonic currents at a particular frequency.
openaire   +1 more source

Eliminating harmonic neutral current problems

2008 IEEE/PES Transmission and Distribution Conference and Exposition, 2008
Powering multiple computer loads connected phase-neutral in a 3-phase wye distribution system places exceptional thermal stresses on the switchgear, transformers and wiring of that system. The presence of harmonic currents can lead to equipment failures and, in the worst case, fires.
openaire   +1 more source

Design and Analysis of Hybrid Active Power Filter for Current Harmonics Mitigation

IEEE India Conference, 2019
This paper focuses on modelling, designing and simulation of a cost effective hybrid filter for compensation of current harmonics from source current. The presented hybrid filter consists of two single tuned passive power filter tuned to the 5th and 7th ...
D. Daftary, M. Shah
semanticscholar   +1 more source

Harmonic oscillator driven by a quantum current

Physical Review Letters, 1989
We show that under certain circumstances a simple quantum harmonic oscillator driven by a quantum current evolves to unique pure states even if started as a mixed state. In various limits, these states exhibit nonclassical properties such as sub-Poissonian statistics, or more interestingly resemble macroscopic superpositions.
, Slosser, , Meystre, , Braunstein
openaire   +2 more sources

Cascaded Harmonic Current Control Loop for VSG Harmonic Current Suppression

2023 4th International Conference on Power Engineering (ICPE), 2023
Fan Yang, Xiaodong Tian, Lan Wu, Huansen Hong, Hengjie Jia, Junjie Feng   +5 more
openaire   +1 more source