Results 21 to 30 of about 11,364,674 (354)
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 ...
Limongi, Leonardo +3 more
core +1 more source
Current harmonics generated by motor-side converter: new standardisations [PDF]
, 2020 PWM voltage generated by power converters creates current harmonics in the range 2-150 kHz. To address the challenges created by these harmonics, new standards for harmonic emission within that frequency range is being developed.
Rathnayake, Hansika +2 more
core +1 more source
The Influence of Harmonics on Error Stability of Energy Meter Verification Device and Its Suppression Measures [PDF]
E3S Web of Conferences, 2019 .In view of the problem of poor error stability of the three-phase energy meter verification device under low current load, the working principle and error calculation method of the device are analyzed.
Song Lei +9 more
doaj +1 more source
Voltage and Current Excitation for Time-Harmonic Eddy-Current Problems [PDF]
SIAM Journal on Applied Mathematics, 2008 We give a systematic presentation of voltage or current intensity excitation for time-harmonic eddy-current problems. The key point of our approach resides in a suitable power law that permits us to understand the role of voltage excitation. We also shed light on the influence of the boundary conditions on the proposed formulations.
Alonso Rodriguez, Ana Maria +1 more
openaire +2 more sources
Bispectrum of stator phase current for fault detection of induction motor [PDF]
, 2009 A number of research studies has shown that faults in a stator or rotor generally show sideband frequencies around the mains frequency (50 Hz) and at higher harmonics in the spectrum of the Motor Current Signature Analysis (MCSA).
Gu, Fengshou +5 more
core +1 more source
Voltage harmonic reduction for randomly time-varying source characteristics and voltage harmonics [PDF]
, 2006 This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted.
Zobaa, AF
core +1 more source
Desktop Computer switching power supply: voltage and current harmonics emissions [PDF]
, 2021 The harmonic emissions of the switching power supply of a desktop computer was recorded for a CPU load of around 40%. Data are recorded on the phase for: - raw voltage - raw current - peak, average and quasi peak harmonics for voltage emissions ...
Daniela Istrate
core +1 more source
IEEE Access, 2020 A 3-D analytical model of armature reaction field (ARF) of interior permanent magnet synchronous motor (IPMSM) with multi-segmented skewed poles (MSP) and multi-layered flat wire winding (MFWW) considering current harmonics is proposed in this paper ...
Conggan Ma +7 more
doaj +1 more source
Bivariate stochastic model of current harmonic analysis in the low voltage distribution grid [PDF]
Proceedings of the Estonian Academy of Sciences, 2021 This paper presents a bottom-up bivariate analysis approach to estimate current harmonics by taking account of network and load variations. The current harmonics assessment in the presence of existing and future nonlinear loads is vital to study their ...
Muhammad Naveed Iqbal +5 more
doaj +1 more source
Harmonic assessment‐based adjusted current total harmonic distortion
The Journal of Engineering, 2016 Power systems suffer from harmonic distortion and extra ohmic losses associated with them. Moreover, all harmonic frequencies are mostly assumed to have the same effect on the system losses. However, the frequency‐dependency of the resistances should be taken into account, so that the apparent power and the power factor have to ...
Shady H.E. Abdel Aleem +2 more
openaire +3 more sources