Results 21 to 30 of about 34,619 (164)

Review of oscillations in VSC-HVDC systems caused by control interactions

open access: yesThe Journal of Engineering, 2019
Owing to the fast control response and distinct characteristics of the voltage source converter (VSC), various types of oscillation incidents related to the VSC-HVDC systems have been observed around the world.
Congqi Yin   +3 more
doaj   +1 more source

On the Importance of Passive Acoustic Monitoring Filters

open access: yesJournal of Marine Science and Engineering, 2021
Passive acoustic monitoring (PAM) is a noninvasive technique to supervise wildlife. Acoustic surveillance is preferable in some situations such as in the case of marine mammals, when the animals spend most of their time underwater, making it hard to ...
Rafael Aguiar   +4 more
doaj   +1 more source

Harmonic Overloading Minimization of Frequency-Dependent Components in Harmonics Polluted Distribution Systems Using Harris Hawks Optimization Algorithm

open access: yesIEEE Access, 2019
This paper presents a novel approach to optimal planning of a resonance-free C-type harmonic filter to minimize the harmonic overloading level of frequency-dependent components in a non-sinusoidal distribution system.
Shady H. E. Abdel Aleem   +3 more
doaj   +1 more source

Self‐packaged MISL‐based miniaturized high Q factor bandpass filter

open access: yesElectronics Letters
This paper proposes a technique named self‐packaged metal integrated suspended line (MISL) to design a high Q factor bandpass filter (BPF). This unique construction simplifies the traditional suspended stripline and substrate integrated suspended line ...
Kaixue Ma, Songhua Lin, Yi Wu
doaj   +1 more source

Hybrid Power Filter Based on a Six-Switch Two-Leg Inverter

open access: yesEletrônica de Potência, 2014
Hybrid power filters (HPFs) are considered an attractive solution to overcome the problem of current harmonics generated by nonlinear loads. They mix low power rating active filters with passive filters, but many of these HPF topologies have a great ...
Leonardo R. Limongi   +4 more
doaj   +1 more source

Calculation method for equivalent model of AC filters in HVDC transmission system

open access: yesThe Journal of Engineering, 2019
AC filter is an important part of HVDC system, which can restrain the AC-side harmonics effectively and compensate for the reactive power consumed by converter station.
Lv Wentao   +4 more
doaj   +1 more source

Voltage/Current-Mode Multifunction Filters Using Current-Feedback Amplifiers and Grounded Capacitors

open access: yesActive and Passive Electronic Components, 2010
One configuration for realizing voltage-mode multifunction filters and another configuration for realizing current-mode multifunction filters each using two current-feedback amplifiers (CFAs) are presented.
Jiun Wei Horng   +2 more
doaj   +1 more source

Coefficients Calculation in Pascal Approximation for Passive Filter Design

open access: yesComputation, 2018
The recently modified Pascal function is further exploited in this paper in the design of passive analog filters. The Pascal approximation has non-equiripple magnitude, in contrast of the most well-known approximations, such as the Chebyshev ...
George B. Kasapoglu   +3 more
doaj   +1 more source

Reflectionless Bandpass Filters Using Two Dual Bandpass Filters

open access: yesIET Microwaves, Antennas & Propagation
A reflectionless filter is designed based on the dual‐circuit theory. Two types of reflection‐less filters are presented for this methodology. The proposed configuration consists of two dual branches. Two dual‐bandpass filters are used in two branches of
Mohammad‐Mahdi Taskhiri   +1 more
doaj   +1 more source

Ladder broadband damping filters

open access: yesИзвестия высших учебных заведений: Проблемы энергетики
RELEVANCE. The large proliferation of various nonlinear loads has led to serious power-quality related problems in power systems. THE PURPOSE. In this paper, we consider design procedure of broadband passive filters with flat frequency characteristics.   
V. P. Dovgun   +4 more
doaj   +1 more source

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