Results 51 to 60 of about 201 (163)

Experimental Analysis of Transformer Core Vibration and Noise under Inter-Harmonic Excitation

Applied Sciences, 2022
With the wide application of power electronic devices and nonlinear loads, the resulting inter-harmonic pollution is becoming more and more serious in the power system.
Qiang He, Chao Fan, Guang Yang, Huiqi Li, Jiadong Li, Xiaogang Chen   +5 more
doaj   +1 more source

Detection of Harmonic and Interharmonics Contents in Water Desalination Plants' Distribution System Based on Deep Learning Algorithms

Energy Science &Engineering, Volume 13, Issue 11, Page 5451-5464, November 2025.
Developed harmonics and interharmonics detection framework. ABSTRACT Water desalination plants are significant consumers of electric power, making them some of the largest energy users in power grids. Their electricity consumption presents an urgent challenge for efficient and sustainable operation, and they are among the most power‐quality‐threatening
Hasnaa M. El‐Arwash, Maytham Alabid, Ragab A. El‐Sehiemy, Lamiaa A. A. Said   +3 more
wiley   +1 more source

Harmonic and interharmonic detection based on adaptive wavelet and improved EWT

Zhejiang dianli
To address the issues of noise sensitivity and over-decomposition when decomposing harmonic signals using empirical wavelet transform （EWT）， a method based on adaptive wavelet denoising and improved EWT is proposed for detecting harmonics and ...
KONG Chuirui, CHEN Fengxian, YANG Lingrui, CHE Yukui, YANG Haixian, XIA Wei, GUO Cheng   +6 more
doaj   +1 more source

Induction Motor Supplied with Voltage Containing Symmetrical Subharmonics and Interharmonics

Energies, 2022
Sinusoidal voltage fluctuations can be considered a specific result of the occurrence of voltage subharmonics and interharmonics, which are components of low frequency or not being an integer multiple of the frequency of the fundamental voltage harmonic.
Piotr Gnaciński, Damian Hallmann, Adam Muc, Piotr Klimczak, Marcin Pepliński   +4 more
doaj   +1 more source

Optimal control of single‐phase microgrid with photovoltaic and energy storage for improving operation performance and seamless state transition

Energy Conversion and Economics, Volume 6, Issue 5, Page 324-340, October 2025.
Abstract Under voltage sags, swells, stochastic load profiles and harmonic voltage distortion, conventional synchronisation mechanisms often fail to track the grid voltage immediately and accurately, leading to degraded control performance and potential power quality violations.
Shiv Shambhu Choudhary, Tripurari Nath Gupta   +1 more
wiley   +1 more source

Grid Integration of Single‐Phase Inverters Using a Robust PLL‐Less Control Strategy for Renewable Energy Applications

Energy Science &Engineering, Volume 13, Issue 9, Page 4539-4552, September 2025.
ABSTRACT In this paper, a PLL‐less control technique for single‐phase grid‐connected voltage source converter (VSC) system is proposed that overcomes shortcomings in traditional PLL‐based and existing PLL‐less techniques. The proposed method avoids the use of a PLL and thus significantly decreases the computational complexity of the system as well as ...
Adnan Tan
wiley   +1 more source

Kullback–Leibler Divergence‐Based Fault Detection Scheme for 100% Inverter Interfaced Autonomous Microgrids

Energy Science &Engineering, Volume 13, Issue 6, Page 2891-2900, June 2025.
ABSTRACT The development of a dependable and secure protection system is critical for further integration of renewable energy sources into electrical energy systems. To address the bidirectional power flow and limited fault current contribution of 100% inverter‐based microgrids, this article presents a differential fault detection scheme (DFDI) based ...
Ali Mallahi, Iman Sadeghkhani
wiley   +1 more source

New Power Balance Equations for Modelling Electric Arc Furnace

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
‐ Proposing two new power balance equations which consider both arc radius and length. ‐ Proposing four new EAF models. ‐ Time varying characteristics of the model are preserved as model parameters change every half cycle. ‐ Like the actual cases, the time variations are non‐stationary as different ARMA models are selected at every run of the models. ‐
Zahra Babaei, Haidar Samet, Vladimir Alexandrovich Serikov   +2 more
wiley   +1 more source

Research on Vibration and Noise of Converter Transformer Based on LCL Converter

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
The paper outlines the topology of the new LCL converter. Through theoretical analysis and experimental verification, it has been confirmed that the proposed LCL converter not only effectively sup‐presses harmonics but also significantly reduces the vibration and noise of the converter transformers.
Liang Zhao, Longfu Luo, Yuzhuo Wang, Hao Zhang, Yan Feng, Yanyun Jin   +5 more
wiley   +1 more source

Harmonic and Interharmonic Measurement Method Using Two-Fold Compound Convolution Windows and Zoom Fast Fourier Transform

Energies
With the rapidly increasing penetration of new energy resources, the power grid faces significant threats from harmonics. To measure and suppress these harmonics, numerous harmonic measurement methods have been proposed.
Xiangui Xiao, Lei Zhao, Shengjun Zhou, Haijun Liu, Zhong Fu, Dan Hu   +5 more
doaj   +1 more source