Implementation of ICMPPSO Algorithm to Minimize PVTHD of Three-Level Inverter
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 5, Issue 6
Abstract
The three level inverters have been found wide application in industry from the prior for converting DC voltage to AC voltage. The main problem in these equipment’s is the existence of harmonic in output voltage. THD is a very important factor to determine losses in the equipment’s such as induction motor, transformers and etc. Loss plays an important role in determining the cross section in distribution network cables and overhead lines, hence the exact determination is important. In prior literature, to determine the amount of THD, approximate methods have been used. They have considered some limited low order harmonics. In this paper, to determine the exact amount of phase voltage THD (PVTHD), an exact method based on extracting formula is presented. The proposed methods consider all harmonic orders and can be utilized for each number of switching angles. Another feature of introducing methods is presented analytical formulas for phase voltage THD that eases finding those switching angles that globally minimize THD. Comparing with heuristic methods, which find local minimums, can clearly show the advantage of proposed methods for usage in some switching strategies like THD Minimization (THDM). In this paper, the new algorithm will have been employed to minimize phase voltage THD. The optimization angles are calculated by Intelligent Coefficient Multi Population Particle Swarm Optimization (ICMPPSO) algorithm. Finally, to show the effectiveness of the proposed methods, approximate and exact methods are compared. Simulation and programming are done in MATLAB software. Experimental results are presented to validate the theoretical results.
Authors and Affiliations
HadiVadizadeh*| Department of Electrical Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran, email:hadi66engineer@gmail.com, Ebrahim Afjei| Department of Electrical and Computer Engineering, ShahidBeheshti University G.C., Tehran, Iran, Alireza Siadatan| Department of Electrical Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
Keywords
Related Articles
- EP ID EP5949
- DOI -
- Views 259
- Downloads 7
Pesticide Application Poisoning Incident among Iranian Rice Growers and Factors Influence It
Agriculture ranks among the most dangerous industries. Farmers are at very high risk for incidents. Chemical products were used to alter life cycles of living pest organisms and improper handling of them is dangerous to...
Evaluation of sowing date effect on hybrid rice lines production in dry-bed of Khuzestan
In order to evaluate the response to planting date in rice hybrids Line dry method of working, was carried out an experiment in a randomized complete block design with three replications at the Agricultural Research Stat...
The role of Hilla School in the extension of Islamic theology
Theological school in Hilla, is of the most important and most lucrative the Shiite theological schools. Remarkable number of theologians, the multiplicity and diversity of theological works, different approaches to the...
Effect of Roughness Height on the Length of Bjump at an Abrupt Drop
Normally downstream of any chute and sluice gate there is a hydraulic jump type stilling basin to dissipate the excessive energy of the high velocity flowing flow through the structure. The dimensions of this basin depen...
The Study of EADAS Elliptical Steel Damper Function in Seismic Resisting of Steel Frames
The present article seek to investigate the function of elliptical steel damper function in steel frames seismic resisting. The elliptical damper is a kind of earthquake energy dissipater in structure which acts based on...