Results 141 to 150 of about 101,710 (207)

Optimal total harmonic distortion minimization in multilevel inverter using improved whale optimization algorithm

International Journal of Emerging Electric Power Systems, 2020
This paper presents the solution to mitigate the total harmonic distortion (THD) in multilevel inverters (MLIs) using novel improved whale optimization algorithm (IWOA).
A. K. V. K. Reddy, K. Narayana
semanticscholar   +1 more source

Closed-Form Analytic Expression of Total Harmonic Distortion in Single-Phase Multilevel Inverters With Staircase Modulation

IEEE transactions on industrial electronics (1982. Print), 2020
In this letter, explicit analytic expression of output voltage total harmonic distortion (THD) in staircase modulated single-phase multilevel inverters (MLI) is derived and verified. The revealed nonrecursive formulae is expressed as a simple function of
Eli Barbie, R. Rabinovici, A. Kuperman
semanticscholar   +1 more source

Total Harmonic Distortion Decomposition Depending on Distortion Origin

IEEE Transactions on Power Delivery, 2005
The total harmonic distortion (THD) ratio is a well-known parameter that characterizes the distortion degree at a specific point of the grid. In this paper, a decomposition of the THD will be presented in order to determine the responsibility of the distribution company and the electrical energy consumer for the harmonic distortion measured at the ...
A. Ortiz, C. Gherasim, M. Manana, C.J. Renedo, L.I. Eguiluz, R.J.M. Belmans   +5 more
openaire   +1 more source

A Symmetrical Multilevel Inverter Topology with Minimal Switch Count and Total Harmonic Distortion

J. Circuits Syst. Comput., 2020
A multilevel inverter (MLI) with reduced number of power devices, especially for the higher output levels, is presented in this paper. The generalized topology for ([Formula: see text]) level MLI is developed with symmetrical isolated dc sources and ...
K. Janardhan, A. Mittal, A. Ojha
semanticscholar   +1 more source

Distortion: Total harmonic distortion in an asymmetrically clipped sinewave

IEEE Instrumentation & Measurement Magazine, 2011
The application of a signal to an electronic system such as an amplifier invariably results in an output that is, in some sense and to some extent, a distorted version of that input signal. The application to which the system is put is a major determiner of whether or not the distortion can be neglected or, at least, of how much distortion can be ...
Stephen Dyer, Justin Dyer
openaire   +1 more source

Measurement uncertainty in evaluating total harmonic distortion factor

IMTC 2001. Proceedings of the 18th IEEE Instrumentation and Measurement Technology Conference. Rediscovering Measurement in the Age of Informatics (Cat. No.01CH 37188), 2002
In the last years power quality issues have been growing in more and more interest, and therefore the definitions of power quality indices are of increasing concern. Obviously the validity of an index is tightly correlated to its measurement uncertainty.
C. DE CAPUA, LANDI, Carmine, G. C. MALAFRONTE   +2 more
openaire   +2 more sources

Stability and Total Harmonic Distortion Analysis with Performance of Grid-Tied PV Systems

2020 International Conference on Power, Energy, Control and Transmission Systems (ICPECTS), 2020
The stability and Total Harmonic Distortion (THD) of the grid integration photovoltaic (PV) array was discussed and analyzed in this article using two separate maximum power point (MPPT) tracking algorithms.
Mohan P. Thakre, S. Sayali, J. M
semanticscholar   +1 more source

Current controller with low total harmonic distortion

2005 European Conference on Power Electronics and Applications, 2005
A new digital current controller with active-null state modulation for voltage source inverter systems (VSI) is presented. The major advantages of the proposed current controller system are: minimisation of the total harmonic distortion (THD) of the output current waveform and maximisation of the time of application of the voltage ...
E. Aldabas, L. Romeral, A. Arias, C. Ortega   +3 more
openaire   +1 more source

Parameter Estimation Using Total Harmonic Distortion in a WPT System

IEEE transactions on power electronics
Wireless power transfer (WPT) systems are widely used in various applications due to their convenience and efficiency. However, the performance of WPT systems can be significantly affected by misalignment and load variations.
Phemelo Maile, Sampath Jayalath
semanticscholar   +1 more source

Selective harmonics elimination: PWM method versus optimized total harmonic distortion

4th International Conference on Power Engineering, Energy and Electrical Drives, 2013
This paper describes two different PWM methods to improve the quality of the output voltage waveform provided from five level inverter. The first one is the selective harmonics elimination (SHEPWM). The purpose is to cancel the 5th, 7th and 11th harmonic row.
Khoukha Imarazene, El Madjid Berkouk, Hachemi Chekireb   +2 more
openaire   +1 more source