Results 301 to 310 of about 11,364,674 (354)

Non-Harmonic Alternating Currents

Transactions of the American Institute of Electrical Engineers, 1927
Certain principles are presented for solving non-harmonic a-c. problems. Graphical methods are already well known for solving practically any problem, when currents and electromotive forces are sinusoidal, by vector diagrams in a plane. In certain special cases such diagrams give correct results when currents and electromotive forces are non-sinusoidal,
openaire   +2 more sources

Reducing Supply Current Harmonics

IEEE Industry Applications Magazine, 1998
In this article, a simple and effective method for reducing the supply current harmonics has been proposed for a parallel connected 12-pulse thyristor converter with an interphase reactor. The proposed method requires only an interphase reactor with an optimal inductance value being much smaller than conventional inductance values, without any ...
Toshihiko Tanaka, Naotsugu Koshio, Hirofumi Akagi, Akira Nabae   +3 more
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

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
Sandeep Kolluri, N. Gorla, Rajesh Sapkota, S. K. Panda   +3 more
semanticscholar   +1 more source

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

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

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

Superposition of current and voltage harmonics

2018 ELEKTRO, 2018
This paper deals with power quality that is aimed on voltage and current harmonics. The analysis describes the household appliances producing the harmonic interference, because they consist of semiconductor components. The next reason is that a large number of household appliances are operated in the same time.
Andrej Bolf, Alena Otcenasova, Michal Regula, Marek Novak   +3 more
openaire   +1 more source

Harmonic analysis of current waveforms using optical current sensor

IEEE Transactions on Instrumentation and Measurement, 2002
This paper reports on the research and development of an optical current sensor for harmonic analysis within the electricity supply network. The device has a measurement capability, limited by the sampling frequency of the analog-to-digital converter, to around 20 kHz. We report on experimental verification of these measurements up to the 60th harmonic
Michie, W.C., Cruden, A.J., Niewczas, P., Madden, W.I., McDonald, J.R., Gauduin, M.   +5 more
openaire   +3 more sources

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