Results 191 to 200 of about 5,070 (249)
Application of an improved LightGBM hybrid integration model combining gradient harmonization and Jacobian regularization for breast cancer diagnosis. [PDF]
Sci RepSun X.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
General Mathematical Solution for Selective Harmonic Elimination
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020This article proposes a general mathematical solution for a selective harmonic elimination (SHE) technique. The proposed procedure is valid for both symmetrical and unsymmetrical multilevel inverter (MLI) inverter configurations with a wide range of modulation indexes (mi).
Mahrous Ahmed +6 more
openaire +2 more sources
Extension of real time harmonic elimination theory to the traditional selective harmonic elimination
2016 8th International Conference on Modelling, Identification and Control (ICMIC), 2016Generally speaking, almost the existing method used to implement the selective harmonic elimination in real time based on look-up table, which will consume lots of memories of the embedded processor. This paper propose a method that extends the real time harmonic elimination strategy based in modified carrier signal theory to the results obtained by ...
B. Makhlouf, O. Bouchhida, M. Nibouche
openaire +1 more source
Simulation of surplus harmonics in selective harmonic elimination technique
2016 IEEE International Conference on Mechatronics and Automation, 2016Selective harmonic elimination technique can eliminate any order harmonics theoretically, but it is restricted by the initial value of switching angles and the switching speed of power device, therefore, it has surplus high-order harmonics. The surplus harmonics exist in the form of harmonics group, there is a window which harmonic wave amplitude close
Wenyi Zhang +3 more
openaire +1 more source
Generalization of Selective Harmonic Control/Elimination
IEEE 36th Conference on Power Electronics Specialists, 2005., 2006Previous work on selective harmonic elimination/control has made fundamental assumptions that enforce output waveform quarter- or half-wave symmetry, presumably in order to reduce the complexity of the resulting equations. However, the quarter- or half-wave symmetric assumption is not required and it restricts the solution space, which can result in ...
J.R. Wells, P.L. Chapman, P.T. Krein
openaire +1 more source
Selective harmonic elimination in a conventional inverter
2017 8th Annual Industrial Automation and Electromechanical Engineering Conference (IEMECON), 2017Ordinary single phase inverter gives a square wave output which when applied to electrical appliances may damage the later, reduce its efficiency as well as life as this inverter output waveform is not sinusoidal and contains lower and higher order harmonics in addition to fundamental. Moreover, the output voltage cannot be controlled.
Gautam Ghosh +5 more
openaire +1 more source
An analytical method of switching waveform design for selective harmonic elimination
Mathematics and Computers in Simulation, 2021Abstract The paper proposes an analytical approach to the design of switching waveforms to eliminate harmonics and thereby improve THD (Total Harmonic Distortion) in power converters. Generally, numerical solutions are used to obtain the switching angles to eliminate targeted harmonics and the solution requires guessing of an initial value and a ...
Sraddhanjoli Bhadra, Hirak Patangia
openaire +1 more source
Enhanced Metaheuristic Methods for Selective Harmonic Elimination Technique
IEEE Transactions on Industrial Informatics, 2018Meta-heuristic techniques have shown remarkable performance in a vast variety of engineering problems. Accurate solving of non-linear equation set in selective harmonic elimination (SHE) has been one of the widely discussed numerical problems in power electronics.
Mohammad Hossein Etesami +3 more
openaire +4 more sources
Design equations for selective harmonic elimination and microcontroller implementation
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014The paper presents an analytical approach to find switching angles for an optimal PWM signal. The solution is in closed form that eliminates the need for numerical solution to find the transition angles. The disadvantage in iterative computation is overhead in computational effort as it requires a PC with expensive software and solution time can be a ...
Hirak Patangia, Sraddhanjoli Bhadra
openaire +1 more source
Five-level converter with selective harmonic elimination for STATCOM
2015 Intl Aegean Conference on Electrical Machines & Power Electronics (ACEMP), 2015 Intl Conference on Optimization of Electrical & Electronic Equipment (OPTIM) & 2015 Intl Symposium on Advanced Electromechanical Motion Systems (ELECTROMOTION), 2015In this paper, five-level Static Synchronous Compensator (STATCOM) is analyzed with reduced number of power switches. The simulation has been performed by using a digital signal processing unit (DSP) and Matlab/Simulink together. Selective harmonic elimination, single phase real (P) and reactive (Q) power methods are used to control power flow in the ...
AKPINAR, EYUP, BALIKCI, ABDÜL
openaire +2 more sources