Results 1 to 10 of about 9,766 (262)
Motor drive systems based on diode-rectifier are utilised in many industrial and commercial applications due to their cost-effectiveness and simple topology.
Abdulrahman Alduraibi +2 more
doaj +3 more sources
The paper reports an experimental non-linear load evaluation regarding current harmonics sensitivity to supply voltage harmonics. A base for the model is proposed relying on the time-domain waveform variations, rather than impedance or conductance ...
Kamran Daniel +5 more
doaj +3 more sources
Measuring Harmonics With Inductive Voltage Transformers in Presence of Subharmonics [PDF]
The measurement of harmonics is one of the key tasks in modern power systems, performed basically for power quality assessment, verification of planning levels compliance, immunity and compatibility purposes, and so on. Especially at medium voltage (MV) and high voltage (HV) levels, harmonics are always measured through voltage and current transformers
Gabriella Crotti +2 more
exaly +5 more sources
Power System Distortion Mitigation by Using Series Active Power Filter [PDF]
The power quality improvement faces different significant problems due to the wide use of power electronics and voltage instability. To overcome these different power quality problems, an active power filter is used.
Muhammad Mahmoud +2 more
doaj +1 more source
Introduction. Nowadays, power quality issues are of considerable interest to both utilities and end users as they cause significant financial losses to the industrial customers.
S. T. Zahra +4 more
doaj +1 more source
Measurements and Analysis of Partial Discharges at HVDC Voltage with AC Components
This paper presents the methodology for phase-resolved partial discharge measurements in HVDC systems with a DC voltage containing trace AC harmonics or a DC voltage ripple.
Marek Florkowski +2 more
doaj +1 more source
Harmonics Detection and its Mitigation in a Doubly Fed Induction Generator based Power System
Ideally, electric supplying companies are projected to convey sinusoidal voltage having the frequency of constant rate, while the consumers are expected to extract the current in sinusoidal forms with power factor nearly equal to unity.
Muhammad Kashif +5 more
doaj +5 more sources
Single-phase and three-phase AC-AC converters are employed in variable speed drive, induction heating systems, and grid voltage compensation. They are direct frequency and voltage controllers having no intermediate power conversion stage.
Naveed Ashraf +3 more
doaj +1 more source
Experimental Analysis on Influences of Harmonic Voltage at High-Voltage Network on Harmonic Current at Medium-Voltage Network [PDF]
In this paper, we describe how harmonic voltage in transmission networks influences harmonic currents in distribution networks. In the conventional equivalent circuit for harmonic analysis based on computer simulations, harmonic currents in distribution networks were regarded as a constant harmonic current source.
Junichi Inagaki, Yasuhiro Hayashi
openaire +1 more source
This paper presents a spatial harmonics compensation method for mutually coupled switched reluctance machines (MCSRMs) with sinusoidal current excitation. The regulation by linear controllers to achieve sinusoidal currents in MCSRMs is challenging due to
Peter Azer +2 more
doaj +1 more source

