Results 251 to 260 of about 8,309,634 (293)

Control strategies for series and shunt active filters

2003 IEEE Bologna Power Tech Conference Proceedings,, 2004
Designs of shunt and series active filter controllers are presented in systems that have voltage and current with unbalances and/or harmonics. The control strategy considers the presence of harmonics and unbalances simultaneously in the system voltage and load current.
M. Aredes, L.F.C. Monteiro, J.M. Miguel
openaire   +1 more source

Voltage quality improvement by a series active filter

2009 International Conference for Technical Postgraduates (TECHPOS), 2009
nonlinear load and system problems has caused appearance of voltage problems such no sinusoidal voltage, sag and etc. A single phase seies active filter for mitigating voltage quality problems is simulated. Also a phase locked loop is used to control active filter.
M. Salehifar, A. Shoulaie
openaire   +1 more source

Simplified series active power filters

2010 IEEE Electrical Power & Energy Conference, 2010
Power harmonic is the important factors affect the safety of transmitting and transforming power. This paper presents a news simplified series single-phase active power filter based on controlling harmonic levels in residential and commercial areas.
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A novel series hybrid active power filter

2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004
A novel series hybrid active power filter is proposed. Compared with the conventional series active power filter (SAPF) or the series hybrid active power filter, its active part only needs to suppress some low order harmonics. So the capacity factor of the inverter's DC voltage is improved a lot and the power rating of the active part decreases ...
null Weimin Wu, null Liqing Tong, null MingYue Li, Z.M. Qian, null ZhengYu Lu, F.Z. Peng   +5 more
openaire   +1 more source

Development of active filter with series resonant circuit

PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference, 2003
An active AC harmonic filter, composed of high-frequency inverters and a series-resonant LC circuit turned to the fundamental frequency, is proposed to solve harmonic distortion problems on distribution systems at lower cost and with higher efficiency.
A. Nakajima, K. Oku, J. Nishidai, T. Shiraishi, Y. Ogihara, K. Mizuki, M. Kumazawa   +6 more
openaire   +1 more source

Incremental activation detection in FMRI series using kalman filtering

2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano (IEEE Cat No. 04EX821), 2005
We propose a new detection algorithm for functional magnetic resonance imaging (fMRI) data. Our basic idea is to use an extended Kalman filter (EKF) to fit a general linear model on fMRI time courses, under the assumption of one-degree autoregressive noise with unknown autocorrelation.
Alexis Roche, Jean-Baptiste Poline, Pierre-Jean Layahe   +2 more
openaire   +1 more source

Hierarchical Gaussian Filtering of Sufficient Statistic Time Series for Active Inference

2020
Active inference relies on state-space models to describe the environments that agents sample with their actions. These actions lead to state changes intended to minimize future surprise. We show that surprise minimization relying on Bayesian inference can be achieved by filtering of the sufficient statistic time series of exponential family input ...
Christoph Mathys, Lilian A. E. Weber
openaire   +4 more sources

Power factor correction using a series active filter

IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03., 2003
This paper present a low-cost approach to power factor correction (PFC) for single-phase diode rectifiers using a series active filter. Comparing with the traditional PFC, the proposed PFC has lower requirements of power device ratings, which leads to lower cost and higher efficiency, and it also can eliminate the bulky inductor needed in the ...
F.Z. Peng, Z. Pan, S. Wang, A. Hiruma
openaire   +1 more source

Design of series active filter for power quality improvement

2014 International Conference on Electronics, Communication and Computational Engineering (ICECCE), 2014
The voltage quality is one of the major concerns for industrial and distribution consumers. In this work, a series active filter for voltage compensation has been verified using vectorial power theory for a three-phase system with non-linear load. The simulation has been designed using MATLAB/Simulink.
Kalyanapu Pradeep Kumar, null Ilango K.
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Design and implementation of a hybrid series active filter system

Proceedings of PESC '95 - Power Electronics Specialist Conference, 2002
A hybrid series active filter system has been designed, built and installed at Beverly Pump Station in New England Electric Power Company utility for 765 kVA, 480 V adjustable speed drive load to comply with IEEE 519 recommended harmonic standards. The series active filter has a small rating-35 kVA which is 4% of the load kVA-and is controlled by a ...
S. Bhattacharya, D. Divan
openaire   +1 more source