Article | 01-October-2019
connected. Therefore, a lot of power electronic devices access to power grid harmonics, caused the converter power factor lower and parallel resonant circuit or series resonance, decrease active reactive power measurement accuracy, reduce the quality of power supply a series of problems, give the user the safe and security, economic operation of power system brings great harm. so harmonic suppression is very important.
Current research of harmonic suppression methods, mainly has: the harmonic
Jingwen Chen,
Xin Zhou,
Hongshe Dang
International Journal of Advanced Network, Monitoring and Controls, Volume 3 , ISSUE 3, 23–28
Article | 30-November-2018
I.
INTRODUCTION
With the transformation and upgrading of industrial cities, the application of nonlinear load like converter, rectifier and inverter that use power semiconductor-cored insulated gate bipolar transistor (IGBT) and intelligent power module (IPM) has been widely used. While plenty of high power nonlinear converter equipments have their advancement and reliability in energy saving and controlling technology, its inherent characteristics will generate a large amount of harmonic
Li Xiangchu,
Zhang wei
International Journal of Advanced Network, Monitoring and Controls, Volume 3 , ISSUE 4, 35–39
Article | 01-June-2015
This paper proposes an advanced nonlinear signal model to handle the intrinsic nonlinearity of the pulsation of photoplethysmogram (PPG) signals and so permit their assessment. This model consists of three-different sinusoidal source signals and it successfully reproduces the primary harmonic, the second harmonic, the respiratory and the other spectra stemming from the interaction of the three source signals. We demonstrate the potential of the model in various experiments on PPG signals. It is
H. Ozaki,
Y. Omura
International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 2, 921–943
Article | 10-April-2018
correct the modal truncation problem of model displacement method. The property given in the study shows that this correcting method can reduce the high-order modes that can’t be calculated to the lower-order modes that are easier to be computed. And the proposed method can also solve the problem causing by the singularity of stiffness matrix. The result of case given in the article shows that it can improve the accuracy of harmonic response effectively compared model displacement.
Jingfang Shen,
Peng Wang
International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 4, 152–156
Research paper | 25-July-2017
The purpose of the study was to test whether aesthetic judgments of music are affected by expertise or harmonic violation of musical sequences. The participants were 14 musical experts and 13 laypersons; they were asked to judge the beauty and correctness of extracts from J.S. Bach’s chorales. Experts and laypersons showed different late positive potential (LPP) responses to the appraisal of correctness. LPP also proved to be sensitive to the extent to which the extracts violated harmonic
Marta Jaśkiewicz,
Piotr Francuz,
Emilia Zabielska-Mendyk,
Dariusz Zapała,
Paweł Augustynowicz
Acta Neurobiologiae Experimentalis, Volume 76 , ISSUE 2, 142–151
Article | 08-April-2018
As for the complexity of the trigger pulse control method for the generally-used thyristor soft starter, The poverty of the continuity of the stator current, the shortage of the waveform distortion and the higher harmonic content. A type with IGBT to realize AC chopping regulation voltage soft starter has been designed，using the two-phase AC power control to achieve the aim of three-phase AC power control，ensuring the effect and saving the costs. The paper makes use of the MATLAB to analyze of
Jingwen Chen,
Hongshe Dang
International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 2, 90–97
Article | 01-December-2015
powerful complement for theoretical and experimental method. This paper uses ANSYS to analyze the single piezoelectric cantilever in static analysis, model analysis, harmonic response analysis and mechanical-electrical coupling analysis. It analyzes the natural frequency and voltage effect from four aspects which are length to thickness ratio, length to width ratio, the substrate thickness to piezoelectric thickness ratio and seismic mass. Test and measurement for piezoelectric energy harvester is
Yao Fenglin,
Meng Wengjun,
Zhao Jie,
Yin Hang
International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 4, 2018–2041
Review | 13-September-2016
. Ultrasound imaging is also used to monitor adrenal incidentaloma that is not eligible for a surgery. The paper presents recommendations concerning the performance and assessment of ultrasound examinations of the adrenal glands and their pathological lesions. The article includes new ultrasound techniques, such as tissue harmonic imaging, spatial compound imaging, three-dimensional ultrasound, elastography, contrast-enhanced ultrasound and parametric imaging. The guidelines presented above are consistent
Rafał Z. Słapa,
Wiesław S. Jakubowski,
Katarzyna Dobruch-Sobczak,
Anna A. Kasperlik-Załuska
Journal of Ultrasonography, Volume 15 , ISSUE 63, 377–387
Original Paper | 13-September-2016
Aim:The aim of the research was to assess the echogenicity of benign adrenal focal lesions using new ultrasound techniques.Material and method:34 benign adrenal masses in 29 patients were analyzed retrospectively. The examinations were conducted using Aplio XG (Toshiba, Japan) ultrasound scanner with a convex probe 1–6 MHz in the B-mode presentation with the combined use of new ultrasound techniques: harmonic imaging and spatial compound sonography. The size of the adrenal tumors, their
Rafał Z. Słapa,
Anna A. Kasperlik-Załuska,
Bartosz Migda,
Maciej Otto,
Katarzyna Dobruch-Sobczak,
Wiesław S. Jakubowski
Journal of Ultrasonography, Volume 15 , ISSUE 63, 368–376
Research Article | 20-February-2013
The multi-step error separation technique is a important method of roundness error separation, but it is not suitable to be used in measuring online for multiple inversion of tested parts, long measurement period and vulnerable to surroundings in the implementation process. In this paper, the studies of single-probe two-step error separation method have been realized by single sensor which is rotated by different angle two times. Not only the influence of harmonic control is reduced, but also
Lei Zhang,
Tong Li,
Jian Ding,
Xiumin Yang
International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 1, 279–296