Results 21 to 30 of about 101,710 (207)

Assessment of Total Harmonic Distortion in Buck-Boost DC-AC Converters using Triangular Wave and Saw-Tooth based Unipolar Modulation Schemes

WSEAS Transactions on power systems, 2022
This paper presents an assessment of the levels of total harmonic distortion (THD) in buck-boost DC-AC converters using triangular wave and saw-tooth unipolar based-modulation schemes.
C. Eya, Ayodeji Olalekan Salau, S. L. Braide, S. B. Goyal, V. A. Owoeye, O. Osaloni   +5 more
semanticscholar   +1 more source

Harmonic Influencing Factors and Their Characterization Under Black Start Mode of Floating Power Station

发电技术, 2022
When floating power stations use static frequency converters to black-start floating power station units, the harmonic effects are more serious than onshore power stations due to the isolated grid system and the limited electrical structure.
LIU Zhongkang, WANG Xitian, ZHAO Zhengyu, XIONG Jiangyue   +3 more
doaj   +1 more source

Analysis of Total Harmonic Distortion and implementation of Inverter Fault Diagnosis using Artificial Neural Network

Journal of Physics: Conference Series, 2022
As power electronics devices dependability is very significant to guarantee Multi Level Inverter (MLI) systems stable functioning, it is imperative to identify and position faults as promptly as possible.
T. G. Manjunath, A. Vikramathithan, H. Girish   +2 more
semanticscholar   +1 more source

Sensorless Voltage Estimation for Total Harmonic Distortion Calculation Using Artificial Neural Networks in Microgrids

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2021
In this brief, a sensorless voltage estimation approach for total harmonic distortion (THD) calculation is proposed to reduce number of voltage sensors in the microgrids.
Behrooz Adineh, M. Habibi, Alper Nabi Akpolat, F. Blaabjerg   +3 more
semanticscholar   +1 more source

Investigation of the usage of zigzag transformers to reduce harmonics distortion in distribution systems

Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2023
The increasing use of power electronics in various sectors leads to harmonic distortion in electric power systems, affecting power quality and equipment longevity.
Langlang Gumilar, Ibram Adib Wicaksono, Arif Nur Afandi, Ahmad Asri Abd Samat, Quota Alief Sias   +4 more
doaj   +1 more source

An approach of incorporating harmonic mitigation units in an industrial distribution network with renewable penetration

Energy Reports, 2021
Due to globalization and industrial development, the need of power is increasing day by day. In addition, due to the high demand for clean energy sources, the use of renewable systems has expanded in recent years.
Mushfiqul Ahmed, Nahid-Al- Masood, Tareq Aziz   +2 more
doaj   +1 more source

Feasibility Analysis for Power Transformer Expectancy and Loss of Life “A practical Case Study in Egyptian Electricity Transmission Company” [PDF]

Port Said Engineering Research Journal, 2014
Quality of power supply is now a major worldwide important issue making harmonic analysis an essential element in power system planning and design. Because of the power transformers are major components in power systems; this paper studies the impact of ...
Ibrahim Henidaq, Gamal Mahmoud, Ahmed Daoud, Hamed Zarzoura   +3 more
doaj   +1 more source

High Harmonic Reduction Using Passive Filters of Mountain Steel Company

Zanco Journal of Pure and Applied Sciences, 2021
An increasing amount of power electronics has created an immediate effect on the value of the electrical power source. Both of high control manufacturing loads and national loads explain harmonic in the system voltage.
Asmahan Y. Husen, Kamal H.Younis, Ameen A. Fatah   +2 more
doaj   +1 more source

A Proposed Harmonic Monitoring System for Large Power Users Considering Harmonic Limits

Energies, 2020
Most power utilities within Southern Africa are faced with the challenges of harmonic distortion due to the high penetration of renewable energy sources (RES) and the use of electronic devices.
Rosalia Sinvula, Khaled Mohamed Abo-Al-Ez, Mohamed Tariq Kahn   +2 more
doaj   +1 more source

Hardware in the Loop Real-Time Simulation of Improving Hosting Capacity in Photovoltaic Systems Distribution Grid With Passive Filtering Using OPAL-RT

IEEE Access, 2023
The industrial revolution in the world resulted in a rise in the desire for energy in recent years. Therefore, the trend was strong toward the utilization of alternative and sustainable energy sources, such as solar power and wind energy.
Mohamed A. Ismeil, Ahmed Alfouly, Hany S. Hussein, I. Hamdan   +3 more
doaj   +1 more source