Results 31 to 40 of about 842,734 (293)
The HVDC commutation failure mechanism impacted by harmonics and its suppression method
Harmonics are an important cause of voltage distortion, and voltage reduction and voltage distortion are the main causes of commutation failure. But most of the current research studies on commutation failure are based on the drop in fundamental voltage ...
Guojiang Zhang +4 more
doaj +1 more source
An MOA Deterioration Monitoring Method Based on an Improved HMM
In view of MOA (metal-oxide arrester) deterioration monitoring, a monitoring method based on an improved hidden Markov model (HMM) is proposed. An improved HMM model used for MOA deterioration monitoring is established by obtaining MOA leakage current ...
FANG Yiyue +4 more
doaj +1 more source
Power Quality Improvement Using Dynamic Voltage Restorer
Power Quality is an essential concern in the modern power system that can affect consumers and utility. The integration of renewable energy sources, smart grid systems and extensive use of power electronics equipment caused myriad problems in the modern ...
Naeem Abas +4 more
doaj +1 more source
New Approach for Voltage Drop Estimation in the Busbars of Workshop Networks at Higher Current Harmonics Influence [PDF]
The presence of higher current harmonics has a negative impact on the efficiency and reliability of the elements of network. Higher current harmonics can lead to significant increases of resistance, voltage drop and active losses in busbar, also to ...
Kotsur M.I. +3 more
doaj +1 more source
Analysis for Industrial Grid Containing Nonlinear Loads
Harmonics is the most important issue among all issues related to the power quality. Harmonics comes from different non-linear loads like uninterruptible power supplies systems (UPS), variable speed motor drives, rectifiers, personal computers ...
Basim Mohammed Al Kadhimi
doaj +1 more source
An improved single phase SPLL with DC and harmonics suppression
This paper has proposed an improved single phase software phase lock loop (SPLL) with the ability of grid voltage DC and harmonics components suppression.
Long Xiao, Dongdong Chen
doaj +1 more source
Harmonics Study of 3-Phase Space Vector PWM Inverter [PDF]
This paper proposes the modeling ,implementation and simulation of three phase induction motor driver, using voltage- fed space vector pulse width modulation technique (SVPWM).The sources of total harmonics (i.e. total effective harmonics,inter-harmonics,
Ahamed Assad Hadi, Majid K. Al-Khatat
doaj +1 more source
Harmonic Voltage Reflection Analysis of UHF RFID Chips
In recent years, the exploitation of the nonlinear behavior of ultrahigh-frequency (UHF) radio frequency identification (RFID) chips has gained popularity. This article presents a measurement platform for the harmonic characterization of UHF RFID chips.
Muralter, Florian +4 more
openaire +2 more sources
dynoGP: Deep Gaussian Processes for Dynamic System Identification
This work introduces a novel class of deep models for system identification, dynamical deep Gaussian processes, which combine the strengths of data‐driven methods, such as those based on neural network architectures, with the ability to output a probability distribution for uncertainty representation.
Alessio Benavoli +3 more
wiley +1 more source
Tuning harmonic absorption of voltage source converters
This paper develops a tool for controlling the harmonic absorption of hysteretic controlled voltage source converters that are connected to a power system. Each VSC is controlled by a state feedback control input to a hysteretic comparator.
Zare, F +7 more
core +1 more source

