http://ieeexplore.ieee.org/iel5/5610941/5624686/05624745.pdf

Power electronics

Journal of Electrical Engineering (ISSN: 2328-2223) is an award-winning peer-reviewed, multidisciplinary periodicals. It is published monthly by David Publishing Company, USA, since 2013. The scope of the Journal is broad. The journal publishes high quality research papers in electronics and integrate circuit, digital electronic technique, electric power transmission and engineering, signal processing, automatic control systems and lectrical control technology, electromagnetics, metrology and instrumentation engineering, electrical materials and devices, bioelectrical engineering, electromechanics and mechatronics, photonics, optoelectronics and so on.

Journal of Electrical Engineering

Power converters systems aimed at renewable energy applications have become a common option for sustainable electricity and distributed generation, since their performance has improved, and prices have steadily been reduced in the last years. However, there are still several drawbacks that hinder their widespread installation, such as the simultaneous minimization of cost and volume, efficiency maximization, size reduction, etc. Quite often, accomplishing these goals requires dealing with complicated optimization problems, which are difficult to solve by classical methods. Metaheuristic techniques provide a viable alternative to solve complex intricate optimization problems, such as those encountered in the development of power electronics converters. This paper presents a comprehensive coverage of metaheuristic methodologies applied in the area of power converters. The review includes a classification of the methodologies and main objective functions in each paper surveyed. An aim for this paper is to highlight the importance of the optimization tools, and the many benefits they provide to tackle the challenges encountered in the design, operation, and control of power converters.

Metaheuristic Optimization Methods Applied to Power Converters: A Review

https://www.econstor.eu/bitstream/10419/243582/1/1666079731.pdf

Improved DTC strategy of doubly fed induction motor using fuzzy logic controller

The increasing share of renewables in the power generation mix makes the power system volatile to uncertain meteorological conditions. The stochastic nature of renewables demands energy storage systems (ESS) to maintain the stability of the grid. Among various ESS, pumped hydro storage (PHS) is a technically matured and economically viable option for large scale energy storage. However, it has not gained much attention from researchers due to its technical maturity and site-specific nature. Lately, the focus is shifting towards the development of variable speed PHS and different reservoir schemes to realize PHS with the existing infrastructure. Nevertheless, the development of variable speed PHS necessitates a proper selection of power converter topology with a suitable control technique. Thus, the principal objective of this paper is to present a critical review of different levels of control of the variable speed PHS. Firstly, a state of the art comparison between PHS and other ESS is presented through critical data analysis using Tableau software. Secondly, the control strategies are categorized into a hierarchical structure and reviewed based on a bottom-up approach. Towards the end, a synoptic review is presented to elucidate the dominating strategy at each level of the control hierarchy. Finally, the domains which require further attention are distinctively reported to leverage the future research of PHS.

Variable speed pumped hydro storage: A review of converters, controls and energy management strategies

https://cyberleninka.org/article/n/334828.pdf

Direct Torque Fuzzy Control of PMSM based on SVM

We present in this paper, a comparative study between a PI regulator and fuzzy regulator for a control speed of a Dual Star Induction Machine (DSIM) supplied with a two PWM voltage source inverter (VSI) and decoupled by field-oriented control (FOC).The simulation results illustrate the robustness and efficiency of the fuzzy regulator to the parametric variations.

Indirect Rotor Field-oriented Control (IRFOC) of a Dual Star Induction Machine (DSIM) Using a Fuzzy Controller

This paper deals with an improvement of the direct power control 'DPC' for three-level voltage source inverter NPC-VSI feeds the rotor of the doubly fed induction generator 'DFIG' based wind power generation system. This converter allows controlling the rotor voltage in magnitude and phase angle with a high flexibility and can therefore be used for active and reactive power control of DFIG. The control is especially designed to reduce the harmonic distortion of the generated currents and active power ripples of the classical DPC control using switching table. In addition, it's convenient for high power drive and variable speed generator applications with constant switching frequency. The detailed operation principle and simulation results of the proposed DPC-NPC strategy for 1.5 MW of DFIG are also discussed. Resume - Cet article traite de l'amelioration du controle de la puissance directe 'DPC' pour trois niveaux de tension de l'onduleur NPC-VSI, alimentant le rotor du generateur asynchrone a double alimentation 'MADA' a base d'energie eolienne. Ce convertisseur permet de controler la tension du rotor en amplitude et en angle de phase avec une grande flexibilite et peut donc etre utilise pour le controle de la puissance active et reactive de la 'MADA'. Le controle est specialement concu pour reduire la distorsion harmonique des courants generes et des ondulations du controle de la puissance active 'DPC' classique en utilisant la table de commutation. En outre, il est commode pour des fortes puissances et des generateurs a vitesse variable avec une frequence de commutation constante. Le principe de fonctionnement detaille et les resultats de simulation de la strategie DPC-NPC propose pour 1,5 MW de la 'MADA' sont egalement discutes.

/pdf/three-level-npc-voltage-source-converter-based-direct-power-gb6dy7mno2.pdf

Three-level NPC voltage source converter based direct power control of the doubly fed induction generator at low constant switching frequency

The aim of this paper is to propose a robust control method for a doubly-fed induction generator fed by a direct AC-AC converter used in wind energy conversion systems. First, we carried out a study of modelling on the matrix converter controlled by the venturini modulation technique. Thereafter, stator active and reactive powers are regulated by controlling the machine inverter with two different controllers : proportional-integral and Sliding mode. Simulations results are presented and discussed for the whole system. Streszczenie. W artykule opisano metode sterowania dla generatora indukcyjnego o zasilaniu dwustronnym z przeksztaltnika matrycowego (AC- AC) w aplikacji do turbiny wiatrowej. Przedstawiono model przeksztaltnika matrycowego o modulacji metodą venturini oraz wyniki badan symulacyjnych. (Sterowanie o zwiekszonej odporności dla generatora indukcyjnego o zasilaniu dwustronnym, zasilanego przeksztaltnikiem matrycowym)

Robust Control of a Doubly Fed Induction Generator (DFIG) Fed by a Direct AC-AC Converter

By using the direct torque control (DTC), robust response in ac drives can be produced. Ripples of currents, torque and flux are oberved in steady state. space vector modulation (SVM) applied in DTC and used for a sensorless induction motor (IM) with fuzzy sliding mode speed controller (FSMSC) is studied in this paper. This control can minimize the torque, flux, current and speed pulsations in steady state. To estimate the rotor speed and stator flux the model reference adaptive system (MRAS) is used that is designed from identified voltages and currents. The FSMSC is used to enhance the efficiency and the robustness of the presented system. The DTC transient advantage are maintained, while better quality steady-state performance is produced in sensorless implementation for a wide speed range. The drive system performances have been checked by using Matlab Simultaion, and successful results have been obtained. It is deduced that the proposed control system produces better results than the classical DTC.

/pdf/dtc-based-on-svm-for-induction-motor-sensorless-drive-with-3b2sfr9eu9.pdf

Abdelkader Meroufel

Papers

Direct Torque Fuzzy Control of PMSM based on SVM

Indirect Rotor Field-oriented Control (IRFOC) of a Dual Star Induction Machine (DSIM) Using a Fuzzy Controller

Three-level NPC voltage source converter based direct power control of the doubly fed induction generator at low constant switching frequency

Robust Control of a Doubly Fed Induction Generator (DFIG) Fed by a Direct AC-AC Converter

DTC based on SVM for induction motor sensorless drive with fuzzy sliding mode speed controller