Results 31 to 40 of about 10,262,280 (355)
Low order harmonic cancellation in a grid connected multiple inverter system via current control parameter randomization [PDF]
, 2005 In grid connected multiple inverter systems, it is normal to synchronize the output current of each inverter to the common network voltage. Any current controller deficiencies, which result in low order harmonics, are also synchronized to the common ...
Abeyasekera, T.D. +3 more
core +1 more source
Improvement of detectability for CMOS floating gate defects in supply current test [PDF]
, 2003 We already proposed a supply current test method for detecting floating gate defects in CMOS ICs. In the method, increase of the supply current caused by defects is promoted by superposing a sinusoidal signal on the supply voltage.
Hondo, Tsutomu +4 more
core +1 more source
Tikrit Journal of Engineering Sciences, 2018 The aim of this paper is to analyze the influence of adding serial inductance in AC side of the 3ph -6 pulse bridge rectifier on the reduction of harmonic distortion rate. A simulated model with serial inductance was analyzed.
Ghanim Thiab Hasan +2 more
doaj +1 more source
IEEE Open Journal of Power Electronics, 2020 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
Digital Current-Control Schemes [PDF]
, 2009 The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Bojoi, Iustin Radu +3 more
core +1 more source
Testing Sensitivity of A-Type Residual Current Devices to Earth Fault Currents with Harmonics
Sensors, 2020 In many applications, modern current-using equipment utilizes power electronic converters to control the consumed power and to adjust the motor speed. Such equipment is used both in industrial and domestic installations.
Stanislaw Czapp
doaj +1 more source
Vascular dementia: current concepts and nomenclature harmonization [PDF]
Dementia & Neuropsychologia, 2012 ABSTRACT Several types of cerebrovascular lesions are associated with cognitive decline, but the role of each type in dementia manifestation has yet to be determined. One of the greatest barriers of conducting clinicopathological studies in vascular dementia concerns the overlapping of nomenclature for these lesions.
openaire +7 more sources
Improved current-regulated delta modulator for reducing switching frequency and low-frequency current error in permanent magnet brushless AC drives [PDF]
, 2005 The conventional current-regulated delta modulator (CRDM) results in a high current ripple and a high switching frequency at low rotational speeds, and in low-frequency current harmonics, including a fundamental current error, at high rotational speeds ...
Howe, D., Wipasuramonton, P., Zhu, Z.Q.
core +1 more source
Energies, 2020 This article presents an effective algorithm to reduce acoustic noise, vibrations and torque ripple caused by cogging torque in three-phase Permanent Magnet (PM) motors under Field Oriented Control (FOC) operation.
M. Sumega, P. Rafajdus, M. Stulrajter
semanticscholar +1 more source
Current Harmonic Suppression for Dual Three-Phase Permanent Magnet Synchronous Motor Drives
IEEE Access, 2019 Due to motor asymmetry and system nonlinear factors, the dual three-phase permanent magnet synchronous motor (PMSM) drives produce a large number of current harmonics during operation. Based on the Vector Space Decoupling model, the six-phase currents of
Zhihuang Ruan, Wenxiang Song, Yan Yan
doaj +1 more source