Results 21 to 30 of about 7,852,908 (296)
Adaptive Filter and Resonant Controller Applied to Hybrid Series Active Power Filter [PDF]
, 2012 This paper proposes a control strategy for Hybrid Active Series Power Filter (HASPF) based on a P+Resonant compensator. The proposed control uses Adaptive Notch Filter to isolate the harmonic content of the source current and a P+Resonant regulator to calculate the harmonic voltage signal necessary to properly tune the hybrid branch.
Robson Bauwelz Gonzatti +5 more
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Reducing the Excess Variability of the Hodrick-Prescott Filter by Flexible Penalization [PDF]
, 2014 The Hodrick-Prescott filter is the probably most popular tool for trend estimation in economics. Compared to other frequently used methods like the Baxter-King filter it allows to estimate the trend for the most recent periods of a time series.
Bloechl, Andreas
core +1 more source
Eletrônica de Potência, 2006 This paper presents a system that provides photovoltaic generation as well as the ability to compensate current harmonics and voltage sags. The system can be controlled for current harmonics and reactive power compensation simultaneously by using a ...
Marcelo Cabral Cavalcanti +5 more
doaj +1 more source
Advanced nonlinear control of three phase series active power filter
MATEC Web of Conferences, 2014 The problem of controlling three-phase series active power filter (TPSAPF) is addressed in this paper in presence of the perturbations in the voltages of the electrical supply network.
Abouelmahjoub Y. +4 more
doaj +1 more source
Neural Networks Applied to the Control of a Four-Wire Shunt Active Power Filter
Eletrônica de Potência, 2005 This paper presents a four-wire shunt active power filter fully controlled with neural networks. The paper is centered on a current compensation method based on adaptive linear elements (adalines), which are powerful and easy-to-use neural networks.
Marcelo G. Villalva +1 more
doaj +1 more source
IEEJ Transactions on Industry Applications, 1990 Conventional passive filters have been broadly used to suppress the harmonics in power systems. However, they have the following disadvantages; (1) Source impedance affects the compensation characteristics. (2) Antiresonance between the source and the passive filter amplifies the harmonic current of the source at the specific frequency. (3) No harmonic
Fujita, Hideaki +2 more
openaire +2 more sources
КОМПЕНСАТОР РЕАКТИВНОЇ ПОТУЖНОСТІ З ПЛАВНИМ РЕГУЛЮВАННЯМ
Elektrotehnìka ta Elektroenergetika, 2014 Розглянуто широко використовувані пристрої компенсації реактивної потужності (ПКРМ) – батареї конденсаторів (БК) з тиристорним перемиканням, проведено аналіз їх недоліків: вплив вищих гармонік при несинусоїдальній напрузі мережі, неможливість забезпечити
V. V. Burlaka +3 more
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Active Damping in Series Connected Power Modules with Continuous Output Voltage
Power Electronics and Drives, 2021 This paper presents a modular and scalable power electronics concept for motor control with continuous output voltage. In contrast to multilevel concepts, modules with continuous output voltage are connected in series.
Ulmer Sabrina +2 more
doaj +1 more source
New trends in active filters for improving power quality [PDF]
, 1996 Since their basic compensation principles were proposed around 1970, active filters have been studied by many researchers and engineers aiming to put them into practical applications.
H. Akagi, Akagi, Hirofumi
core +1 more source
Elektrotehnìka ta Elektroenergetika, 2018 Purpose. Investigate the features of using a series power transformer for the implementation of longitudinal compensation. Methodology. Methods of solving systems of differential equations of the first order, methods of matrix transformations, methods ...
S. S. BONDARENKO +2 more
doaj +1 more source