Results 311 to 320 of about 11,364,674 (354)

Influence of Harmonic System Voltages on the Harmonic Current Emission of Photovoltaic Inverters

2007 International Conference on Power Engineering, Energy and Electrical Drives, 2007
Harmonic currents of photovoltaic (PV)-inverters show a significant dependency on the harmonic voltage content of the alternating current (AC)-system voltage. Measurements of harmonic currents were carried out in low-voltage (LV)-systems and under laboratory test conditions with adjustable harmonic content of the AC-voltage.
J. SCHLABBACH, A. GROSS, CHICCO, GIANFRANCO   +2 more
openaire   +2 more sources

Harmonic pricing model based on harmonic costs and harmonic current excessive penalty

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011
Harmonic will do great harm to power grid and cause economic losses. In order to reduce such losses, the power utilities need additional investment for harmonic suppression measures. The harmonic losses and the additional investment capital together constitute the harmonic costs and they are the basis of harmonic pricing.
null Yong Peng, null Shun Tao, null Qun Xu, null Xiangning Xiao   +3 more
openaire   +1 more source

Current Harmonics and Unbalance Suppression of Dual Three-Phase PMSM Based on Adaptive Linear Neuron Controller

IEEE transactions on energy conversion, 2023
Yonggang Li, Yashan Hu, Z. Q. Zhu
semanticscholar   +1 more source

Analyzing and Reducing Current Harmonics of AC and DC sides of Cascaded H-Bridge Converters for Electric Vehicle Charging Stations

European Conference on Cognitive Ergonomics, 2019
In this paper, average modeling is derived for both AC and DC sides of grid-tied cascaded H-bridge converter (CHB). The proposed technique uses the AC current harmonics to control and reduce the current harmonic ripples on the DC sides of the CHB ...
A. Moeini, Shuo Wang
semanticscholar   +1 more source

Input Current Ripple and Grid Current Harmonics Restraint Approach for Single-Phase Inverter Under Battery Input Condition in Residential Photovoltaic/Battery Systems

IEEE Transactions on Sustainable Energy, 2018
When an existing photovoltaic (PV) system is upgraded to a residential PV/battery system, the single-phase PV inverter under both input conditions of battery and PV should be properly controlled to restrain the input current ripple and grid-current ...
Bin Liu, Lina Wang, Dongran Song, M. Su, Jian Yang, Deqiang He, Zhi-wen Chen, Shaojian Song   +7 more
semanticscholar   +1 more source

Effect of Harmonics Current on the Performance of Current Transformers

2022
Muhammad Syarifuddin Bin Sha'ari, Noramalina Abdullah   +1 more
openaire   +1 more source

Harmonic-current-restrained relays for differential protection

Electrical Engineering, 1938
DIFFERENTIAL relaying is the commonly accepted means of protecting large power transformers, a-c generators, and station bus systems against internal faults.1 The methods and circuits employed in various instances, while differing in detail, are all fundamentally the same in basic principle.
L. F. Kennedy, C. D. Hayward
openaire   +1 more source

The Effects of dc Current Polarization on Cochlear Harmonics

The Journal of the Acoustical Society of America, 1972
The effects of dc polarization of the cochlear partition were observed on harmonic distortion components in microphonics. The qualitative effects of negative polarization (scala vestibuli negative) were quite consistent and similar to those observed in the polarization of intermodulation distortion components.
J D, Durrant, P, Dallos
openaire   +2 more sources

The calculation of harmonics in rectified currents

Journal of the Institution of Electrical Engineers, 1930
The classical mathematical method of calculating the wave-form of rectified currents is applicable to rectifiers whose volt-ampere characteristic consists of two interesting straight lines. It is based on the observed fact that there is for each rectifier a conducting phase and an insulating phase.
openaire   +1 more source

Modelling, Calculation and Analysis of Electromagnetic Force and Vibroacoustic Behavior of Integer-Slot Permanent Magnet Synchronous Motor Considering Current Harmonics

Journal of Vibration Engineering & Technologies, 2022
Zhipeng Wu, S. Zuo, Zhiyong Huang, Xiaorui Hu, Siyue Chen, Chang Liu   +5 more
semanticscholar   +1 more source