Results 241 to 250 of about 7,852,908 (296)

Stimulation selectively blocks subthalamic high β-cortical high γ coupling in Parkinson's disease. [PDF]

open access: yesNeurotherapeutics
Berki ÁJ   +12 more
europepmc   +1 more source

A novel transformerless hybrid series active filter

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
This paper proposes a novel configuration of Series hybrid active filters. The proposed configuration could be connected to the grid without requiring a costly series injection transformer. This topology is capable of compensating current harmonics at the source and voltage distortion at the point of common coupling.
Alireza Javadi   +2 more
openaire   +1 more source

A grid-voltage-sensorless resistive active power filter with series LC-filter

2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017
Voltage-sensorless control has been investigated for Voltage Source Inverters (VSIs) for many years due to the reduced system cost and potentially improved system reliability. The VSI based Resistive Active Power Filters (R-APFs) are now widely used to prevent the harmonic resonance in power distribution network, for which the voltage sensors are ...
Haofeng Bai   +2 more
openaire   +4 more sources

A novel series-in series hybrid active power filter

2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition, 2008
In order to decrease the passive filter rating, suppress the large resonant peak when the passive part is used alone for the series-in series hybrid active power filter (SHAPF), a novel series-in SHAPF topology is proposed in this paper. It is a combined system of a traditional SHAPF and a capacitor which is connected in series with inverter and ...
null Liqing Tong   +3 more
openaire   +1 more source

Study of a New Series Hybrid Active Power Filter

2009 Pacific-Asia Conference on Circuits, Communications and Systems, 2009
This paper investigates the configuration of a new series hybrid active power filter consisting of a single tuned resonant branch between voltage source inverter and coupling transformer. The configuration is characterized by well filtering performance and reduces the capacity of active power filter.
Cunlu Dang   +3 more
openaire   +2 more sources

Stability Analysis of the Series-In Series Hybrid Active Power Filter

Applied Mechanics and Materials, 2011
For the important characteristic of the system stability, a state-space averaging model of the series-in series hybrid active power filter (SHAPF) is constructed to analyze its system stability by traditional control strategy taking into account the effect of the time delay in the digital control system, inverter, low pass filter and second-order ...
Yao Jie Sun, Li Qing Tong, Yan Dan Lin
openaire   +1 more source

A novel control strategy for the series-in series hybrid active filter

2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition, 2008
Based on the trap filter characteristic of the fundamental frequency series-resonance circuit for the series-in series hybrid active power filter, a new control strategy is proposed in this paper. The proposed control strategy, which can directly detect the voltage of the fundamental frequency series-resonance circuit as the reference signal, is more ...
null Liqing Tong   +3 more
openaire   +1 more source

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