Results 31 to 40 of about 3,150,912 (332)

VSC transmission system using flying capacitor multilevel converters and hybrid PWM control [PDF]

, 2007
A high-voltage direct current (HVDC) transmission system based on three-level flying capacitor (FC) multilevel converters with hybrid pulse-width modulation (PWM) is presented in this paper.
Agelidis, V.G., Xu, L.
core   +1 more source

Third harmonic injection control for co‐phase traction power supply system using direct AC/AC full‐bridge modular multilevel converter

IET Power Electronics, 2023
As the full‐bridge modular multilevel converter (FB‐MMC) enables direct three‐phase AC voltage to single‐phase AC voltage conversion with good power quality and high voltage level, it is suitable for the co‐phase traction power supply system.
Ruoning Tian, Xuezhi Wu, Long Jing, Jinke Li, Haitian Zhao, Huiwen Yan   +5 more
doaj   +1 more source

Harmonic Mitigation Using Passive Harmonic Filters: Case Study in a Steel Mill Power System

Energies, 2021
In this study, we mitigated the harmonic voltage in a power system that contained the roughing mill (RM) and finishing mill (FM) motor drives. AC/DC converter type RM drive is a non-linear, large-capacity varying load that adversely affects power quality,
Byungju Park, Jaehyeong Lee, Hangkyu Yoo, Gilsoo Jang   +3 more
doaj   +1 more source

Applicability Limits of Fixed-Spectrum Harmonic Models in Weak Low-Voltage Networks

IEEE Access
This paper investigates the applicability limits of simplified fixed-spectrum harmonic current source models in low-voltage distribution networks under varying operating conditions.
Dawid Bula
doaj   +1 more source

Modelling and analysis of LCC‐HVDC converter station for harmonic coupling of AC/DC power grid during geomagnetic storm

IET Power Electronics, 2023
In this paper, the problem of harmonic coupling between the converter transformer and the converter under the action of geomagnetically induced current (GIC) is proposed to be investigated.
Yang Peihong, Han Xiaoyong, Jiang Hui, Shi Xizhi, Zhang Zilei, Liu Chunming, Liu Lianguang   +6 more
doaj   +1 more source

Harmonic voltage measurement based on capacitive equipment dielectric equivalent model and responding current

Measurement science and technology
With the increasing proportion of new energy and the power electronic equipment in the power grid, accurate measurement of harmonic voltage has become increasingly important for power quality monitoring.
Lin Du, Hui Feng, Xin Li, Xianjun Shao, Zhi Yang   +4 more
semanticscholar   +1 more source

Multiple sets of solutions for harmonic elimination PWM bipolar waveforms: Analysis and experimental verification [PDF]

, 2006
Multiple sets of solutions for the selective harmonic elimination pulse-width modulation method for inverter control exist. These sets present an independent solution to the same problem but further investigation reveals that certain sets may offer an ...
Agelidis, VG, Balouktsis, A, Cossar, C, Cossar, C., Balouktsis, A., Balouktsis, I, Agelidis, V.G., Balouktsis, I.   +7 more
core   +1 more source

Fast Bus Voltage Control of Single-Phase Grid-Connected Converter With Unified Harmonic Mitigation

IEEE Access, 2023
This paper presents a comprehensive analysis of the harmonic sources of the single-phase grid-connected voltage source converter (VSC), which leads to an alternative approach for DC bus voltage control of the VSC under grid voltage distortion with a ...
Akekachai Pannawan, Tanakorn Kaewchum, Sakda Somkun, Marko Hinkkanen   +3 more
doaj   +1 more source

Electrical Tree Growth Characteristics in Epoxy Resin With Harmonic Superimposed DC Voltage

IEEE Access, 2019
HVDC converters can generate harmonic voltage, which distorts the DC voltage quality and threatens epoxy resin insulation reliability. In this paper, the electrical tree growth was investigated in epoxy resin under harmonic superimposed DC voltage.
Boxue Du, Meng Tian, Jingang Su, Tao Han
doaj   +1 more source

Generation of second harmonic component of fault current in a doubly‐fed induction generator and mitigation measures for transformer protection

IET Renewable Power Generation, 2021
The transient characteristics of short‐circuit current (SCC) in doubly‐fed induction generator (DFIG) are quite different from the widely researched conventional synchronous machines.
Tao Zheng, Jingxian Yan, Jing Li, Xingguo Wang, Hongcheng Zhao, Sirui Wang   +5 more
doaj   +1 more source