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Integration of an Active Filter and a Single-Phase AC/DC Converter with Reduced Capacitance Requirement and Component Count [PDF]

open access: yes, 2015
Existing methods of incorporating an active filter into an AC/DC converter for eliminating electrolytic capacitors usually require extra power switches. This inevitably leads to an increased system cost and degraded energy efficiency.
Hui, SYR, Li, S, Qi, W, Tan, SC
core   +1 more source

High-Input Impedance Voltage-Mode Multifunction Filter

open access: yesApplied Sciences, 2021
This paper proposes a high-input impedance voltage-mode (VM) multifunction biquad filter which employs three current-feedback amplifiers (CFAs), three resistors, and two grounded capacitors.
San-Fu Wang   +3 more
doaj   +1 more source

CMOS OTA-Based Filters for Designing Fractional-Order Chaotic Oscillators

open access: yesFractal and Fractional, 2021
Fractional-order chaotic oscillators (FOCOs) have shown more complexity than integer-order chaotic ones. However, the majority of electronic implementations were performed using embedded systems; compared to analog implementations, they require huge ...
Martín Alejandro Valencia-Ponce   +6 more
doaj   +1 more source

Control Algorithms of Shunt Active Power Filter for Harmonics Mitigation: A Review

open access: yesEnergies, 2017
Current harmonics is one of the most significant power quality issues which has attracted tremendous research interest. Shunt active power filter (SAPF) is the best solution to minimize harmonic contamination, but its effectiveness is strictly dependent ...
Yap Hoon   +3 more
doaj   +1 more source

Power Management and Power Quality System Applied in a Single-Phase Nanogrid

open access: yesEnergies, 2022
This work aims to present an electrical power management system, between a photovoltaic generation system and a battery energy storage system, by using a low-power dual-stage microinverter connected to the electrical distribution network, configuring a ...
Fernando Marcos de Oliveira   +3 more
doaj   +1 more source

Variable Structure Control of DFIG for Wind Power Generation and Harmonic Current Mitigation

open access: yesAdvances in Electrical and Computer Engineering, 2010
This paper focuses on wind energy conversion system (WECS) analysis and control for power generation along with problems related to the mitigation of harmonic pollution in the grid using a variable-speed structure control of the doubly fed induction ...
BELMADANI, B.   +3 more
doaj   +1 more source

A hybrid active filter for damping of harmonic resonance in industrial power systems [PDF]

open access: yes, 1998
This paper proposes a hybrid active filter for damping of harmonic resonance in industrial power systems. The hybrid filter consists of a small-rated active filter and a 5th tuned passive filter.
Akagi, Hirofumi   +2 more
core   +1 more source

Zero-Phase FIR Filter Design Algorithm for Repetitive Controllers

open access: yesEnergies, 2023
Repetitive controllers (RCs) are linear control structures based on the internal model principle. This control strategy is known for its ability to control periodic reference signals, even if these signals have many harmonic components.
Pedro V. S. G. de Lima   +5 more
doaj   +1 more source

Research on Harmonic Management of Single-Phase AC Charging Pile Based on Active Filtering

open access: yesEnergies, 2023
Nowadays, AC charging piles are widely used, and with the increasing number of charging piles, the harmonic pollution generated by them becomes more serious and affects the power quality of the grid.
Xiangfu Ding   +5 more
doaj   +1 more source

A practical approach to harmonic compensation in power systems-series connection of passive and active filters [PDF]

open access: yes, 1991
The authors present a combined system with a passive filter and a small-rated active filter, both connected in series with each other. The passive filter removes load produced harmonics just as a conventional filter does.
Akagi, Hirofumi, Fujita, Hideaki
core   +1 more source

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