Results 101 to 110 of about 3,794 (179)

Research on motor overvoltage issues in metallurgical environments using three-level inverters

Metalurgija
Industries such as nuclear power plants and underground mining are characterized by space constraints,forcing the use of long-wire cables to power motors.The impedance mismatch between long-wire cables and motors leads to overvoltage phenomena at motor ...
L. L. Meng, W. Dai
doaj  

Research on the Influence of Power Grid on the Operation of Voltage Source Inverter

Kongzhi Yu Xinxi Jishu, 2017
Three-phase input current unbalance is often happened in inverters, which causes devices damaged by overvoltage or over-current. Influences of grid unbalance, line impedance and multi-load on voltage source inverter and their mechanisms were analyzed ...
WANG Lucheng, HE Donglin, ZHANG Fengjiang   +2 more
doaj  

Preventing overvoltage in a distribution grid with large penetration of photovoltaic power

, 2016
Photovoltaic (PV) power generation is an important component in the future energy system. High penetration of PV power in a distribution power grid might however lead to overvoltage, i.e. +10% of rated voltage, for end-users. This study compares PV power
Widén, Joakim,, Luthander, Rasmus,, Munkhammar, Joakim,, Lingfors, David,   +3 more
core  

Research on ferromagnetic resonance type recognition of support vector machine based on chaos theory

AIP Advances
This study presents an innovative method for identifying ferroresonant overvoltage types in power systems by integrating chaos theory with support vector machine classification.
Yuliang Zhang, Na Liu, Xiao Chen, Yujie Chen, Haozhi Qin   +4 more
doaj   +1 more source

Mitigation of machine neutral point overvoltage in SiC motor drives by controlling antiresonance frequency and switching frequency

No descrinverter-fed motors are vulnerable to premature insulation failure due to overvoltage stress across stator windings because of antiresonance phenomenon which is characterized by two oscillatory overvoltage responses that manifest at the motor ...
Xibo Yuan (11766488), Mohamed Diab (11652895), Mustafa Memon (13797673)   +2 more
core  

An Investigation Into Overvoltage In Power Distribution Networks

, 2014
Overvoltage is a dangerous phenomenon in power distribution grid operation, which exerts influence on electrical devices, aging insulation and shortening the service life of electrical equipment used by power companies and customers.
Việt*, Đ. T. (Đinh)
core  

Chladni figures reduce ohmic losses in alkaline electrolysis. [PDF]

Ultrason Sonochem
Agrež V, Heidary Z, Gavaises M, Petkovšek R, Ohl CD.   +4 more
europepmc   +1 more source

Control Strategy for Asymmetric Faults on the Low-Frequency Side of a Sparse Modular Multilevel Converter

Sparse modular multilevel converters (SMMCs) are a new type of lightweight high-voltage large-power AC/AC converter that significantly reduces the number of components compared to modular multilevel matrix converters (M3Cs).
Yuwei Sun, Shengce Wang, Bao Liu, Zelin Zhang, Yunfei Xu, Guoliang Zhao, Chen Jia, Chao Fu   +7 more
core   +1 more source

High-resolution Dataset of Electric Vehicle Charging Responses Under Varied Power Quality Disturbances. [PDF]

Sci Data
Li H, Zhang Y, Yang S, Liu X.
europepmc   +1 more source

Limitations of Overvoltage Mitigation Methods in High PV Penetration LV Distribution Networks

The surging integration of Photovoltaic (PV) systems in low-voltage networks promises increased self-consumption and reduced energy costs, but its rapid adoption introduces new challenges.
POYRAZOĞLU, GÖKTÜRK, Ahmed, Eıhab Elgaıly Elmukshfı, Demirci, A., Ahmed, Eihab EE, DEMİRCİ, ALPASLAN   +4 more
core   +1 more source