Results 51 to 60 of about 819 (196)

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

A Random Sampling-Rate MPPT Method to Mitigate Interharmonics from Cascaded H-Bridge Photovoltaic Inverters [PDF]

, 2020
Interharmonics have become one challenging issue in power systems. One potential source of interharmonic emissions from photovoltaic (PV) systems is the perturbation of the maximum power point tracking (MPPT).
Yiwei Pan, Sangwongwanich, Ariya; id_orcid, Yang, Yongheng; id_orcid, Yongheng Yang, Pan, Yiwei; id_orcid, Blaabjerg, Frede; id_orcid, Frede Blaabjerg, Ariya Sangwongwanich   +7 more
core   +1 more source

CURRENTS OF SINGLE-PHASE INDUCTION MOTORS SUPPLIED WITH VOLTAGE CONTAINING INTERHARMONICS

Scientific Journal of Gdynia Maritime University
In real power systems the voltage waveform is not a perfect sine, but contains various additional frequency components, like harmonics, and in some power systems also subharmonics and interharmonics, that are components of frequency less than the ...
Marcin Pepliński, Piotr Gnaciński
doaj   +1 more source

The Influence of Power Network Disturbances on Short Delayed Estimation of Fundamental Frequency Based on IpDFT Method with GMSD Windows

Energies, 2021
This paper presents an application of the IpDFT spectrum interpolation method to estimate the fundamental frequency of a power waveform. Zero-crossing method (ZC) with signal prefiltering was used as a reference method.
Józef Borkowski, Mirosław Szmajda, Janusz Mroczka   +2 more
doaj   +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

A Phase-Shifting MPPT to Mitigate Interharmonics from Cascaded H-Bridge PV Inverters [PDF]

, 2021
Interharmonic is an emerging issue in photovoltaic (PV) systems. It has been revealed in previous studies that the maximum power point tracking (MPPT) control is one potential source for interharmonics.
Yang, Y.; id_orcid, Blaabjerg, F.; id_orcid, Pan, Y.; id_orcid, Sangwongwanich, A.; id_orcid   +3 more
core   +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

Induction Motor Supplied with Voltage Containing Symmetrical Subharmonics and Interharmonics

, 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.
Marcin Pepliński, Piotr Gnaciński, Piotr Klimczak, Damian Hallmann, Adam Muc   +4 more
core   +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

Input current interharmonics in adjustable speed drives caused by fixed-frequency modulation techniques [PDF]

, 2016
Adjustable Speed Drives (ASDs) based on double-stage conversion systems may inject interharmonics distortion into the grid, other than the well-known characteristic harmonic components.
Soltani, H., Loh, Poh Chiang, Firuz Zare, Zare, Firuz, Blaabjerg, F., Loh, P., Hamid Soltani, Blaabjerg, Frede, Pooya Davari, Davari, P., Blaabjerg, Frede; id_orcid, Soltani, Hamid, Davari, Pooya, Poh Chiang Loh, Frede Blaabjerg   +14 more
core   +1 more source