Results 31 to 40 of about 33,988 (309)

3-D Analytical Model of Armature Reaction Field of IPMSM With Multi-Segmented Skewed Poles and Multi-Layered Flat Wire Winding Considering Current Harmonics

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, Jiaming Li, Huichao Zhao, Jinhao Wang, Xiangrui Yin, Shuguang Zuo, Xudong Wu, Haifeng Lu   +7 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, Ahmed M. Ibrahim, Ahmed F. Zobaa   +2 more
openaire   +3 more sources

Harmonic distortion in CMOS current mirrors [PDF]

ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Circuits and Systems (Cat. No.98CH36187), 2002
One of the origins of harmonic distortion in CMOS current mirrors is the inevitable mismatch between the MOS transistors involved. In this paper we examine both single current mirrors and complementary class AB current mirrors and develop an analytical model for the mismatch induced harmonic distortion.
openaire   +1 more source

General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding [PDF]

, 2014
this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated.
LEGRANGER, Jerome, ASLAN, Bassel, SEMAIL, Eric   +2 more
core   +1 more source

Influence of Travelling Current Linkage Harmonics on Inductance Variation, Torque Ripple and Sensorless Capability of Tooth-Coil Permanent-Magnet Synchronous Machines [PDF]

, 2014
This paper introduces an important source of torque ripple in PMSMs with tooth-coil windings (TC-PMSMs). It is theoretically proven that saturation and cross-saturation phenomena caused by the non-synchronous harmonics of the stator current linkage cause
Petrov, Ilya, Pyrhönen, Juha, Ponomarev, Pavel   +2 more
core   +1 more source

Coordinated control for harmonic mitigation of parallel voltage-source inverters

CES Transactions on Electrical Machines and Systems, 2018
The increasing use of power electronic devices can deteriorate the power quality by introducing voltage and current harmonics. In islanded microgrids, the presence of nonlinear loads can distort the point of common coupling (PCC) voltage, while the dead ...
Yang Qi, Jingyang Fang, Jiazhe Liu, Yi Tang   +3 more
doaj   +1 more source

Spatiotemporal phase-matching in capillary high-harmonic generation [PDF]

, 2012
We present a simple phase-matching model that takes into account the full spatiotemporal nature of capillary high-harmonic generation. Spectra predicted from the model are compared to experimental results for a number of gases and are shown to reproduce ...
Rogers, Edward T.F., Praeger, M., Brocklesby, W. S., Grant-Jacob, James, Stebbings, Sarah L., Frey, Jeremy G., Rogers, E. T. F., de Paula, A., Rogers, E., de Paula, Ana M., Froud, C. A., Froud, Christopher A., Brocklesby, William S., Mills, Benjamin, Grant-Jacob, J., Frey, J. G., Praeger, Matthew, Mills, B., Frey, J., de Paula, A. M., Stebbings, S., Froud, C., Brocklesby, W.   +22 more
core   +1 more source

Design and implementation of a modified fourier analysis harmonic current computation technique for power active filters using DSPs

, 2001
The design and implementation of a harmonic current computation technique based on a modified Fourier analysis, suitable for active power filters incorporating DSPs is presented.
El-Habrouk, M, M.K. Darwish, Darwish, MK, M. El-Habrouk   +3 more
core   +1 more source

Current harmonics generated by motor-side converter: new standardisations

, 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, Yaghoobi, Jalil, Zare, Firuz   +2 more
core   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source