Results 231 to 240 of about 1,409,523 (291)

Improving Passive Filter Compensation Performance With Active Techniques

IEEE Transactions on Industrial Electronics, 2003
This paper presents the performance analysis of a hybrid filter composed of passive and active filters connected in series. The analysis is done by evaluating the influence of passive filter parameters variations and the effects that different active ...
Luis A Moran, J R Espinoza
exaly   +2 more sources

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Quasi-Passive Filter for Harmonic Filtering

Electric Power Systems Research, 2008
To overcome the limitations of conventional shunt passive filters, a quasi-passive filter has been proposed in this paper. It comprises of a parallel and series tuned LC tank circuit. Unlike the conventional shunt passive filter, the quasi-passive filter utilizes a large value ac capacitor.
R Mahanty
exaly   +2 more sources

Matrix filters for passive sonar

2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221), 2002
This paper introduces matrix filters as a tool for localization and detection problems in passive sonar. The outputs of an array of sensors, at some given frequency, can be represented by a vector of complex numbers. A linear filtering operation on the sensor outputs can be expressed as the multiplication of a matrix (called a matrix filter) times this
Vaccaro, Richard J., Harrison, Brian F.
openaire   +3 more sources

Analysis of the Passive Damping Losses in LCL-Filter-Based Grid Converters [PDF]

IEEE Transactions on Power Electronics, 2013
Passive damping is the most adopted method to guarantee the stability of LCL-filter-based grid converters. The method is simple and, if the switching and sampling frequencies are sufficiently high, the damping losses are negligible.
Frede Blaabjerg, Marco Liserre, Rafael Peña-Alzola   +2 more
exaly   +4 more sources

Analysis and Design of Passive Polyphase Filters

IEEE Transactions on Circuits and Systems I: Regular Papers, 2008
Passive RC polyphase filters (PPFs) are analyzed in detail in this paper. First, a method to calculate the output signals of an n-stage PPF is presented. As a result, all relevant properties of PPFs, such as amplitude and phase imbalance and loss, are calculated.
Ryynänen Jussi, Stadius Kari, Halonen Kari A I, Kaukovuori Jouni   +3 more
openaire   +1 more source

An investigation on the selection of filter topologies for passive filter applications

IEEE PES General Meeting, 2009
Passive filters have been a very effective solution for power system harmonic mitigation. These filters have several topologies that give different frequency response characteristics. The current industry practice is to combine filters of different topologies to achieve a certain harmonic filtering goal.
A.B. Nassif, null Wilsun Xu, W. Freitas
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A sharp programmable passive filter based on filtering by Aliasing

2015 Symposium on VLSI Circuits (VLSI Circuits), 2015
This paper presents the 1st integrated circuit demonstration of Filtering by Aliasing (FA). FA is a recent technique that uses linear periodically time varying (LPTV) analog circuitry prior to a sampler to provide a desired CT-to-DT transfer function. Such LPTV signal processing offers far superior programmability and performance relative to LTI design.
Neha Sinha, Mansour Rachid, Sudhakar Pamarti   +2 more
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