Goturu Sreenivasan

La dimensione e la posizione dei DG sono fattori cruciali nell'applicazione dei DG per la minimizzazione delle perdite. Questo libro presenta un algoritmo per l'identificazione della posizione del bus utilizzando l'analisi di sensibilit e un algoritmo per la determinazione delle dimensioni del DG utilizzando PSO. Questa metodologia viene testata su un sistema IEEE a 15 bus. Installando i DG in tutte le posizioni potenziali con le dimensioni determinate, la perdita totale di potenza reale del sistema stata ridotta dell'83% e anche il profilo di tensione del sistema migliorato. Le armoniche presenti nel sistema vengono ridotte collocando i condensatori nelle posizioni ottimali determinate con l'algoritmo PSO-HPF. Posizionando i condensatori nelle posizioni ottimali, si migliora anche il profilo di tensione.

Die Gr e und der Standort von DG sind die entscheidenden Faktoren bei der Anwendung von DG zur Verlustminimierung. In diesem Buch wird ein Algorithmus zur Identifizierung des Busstandorts mit Hilfe einer Sensitivit tsanalyse sowie ein Algorithmus zur Bestimmung der Gr e der GD mit Hilfe von PSO vorgestellt. Diese Methodik wird an einem IEEE-15-Bus-System getestet. Durch die Installation von DGs an allen potenziellen Standorten mit den ermittelten Gr en konnte der gesamte Wirkleistungsverlust des Systems um 83% reduziert und das Spannungsprofil des Systems verbessert werden. Die im System vorhandenen Oberschwingungen werden durch die Platzierung der Kondensatoren an den optimalen Standorten, die mit dem PSO-HPF-Algorithmus ermittelt werden, reduziert. Durch die Platzierung der Kondensatoren an optimalen Stellen wird auch das Spannungsprofil verbessert.

A dimens o e a localiza o da GD s o os factores cruciais na aplica o da GD para a minimiza o das perdas. Este livro apresenta um algoritmo para a identifica o da localiza o dos barramentos usando an lise de sensibilidade e tamb m um algoritmo para a determina o do tamanho da GD usando PSO. Esta metodologia testada num sistema de 15 barramentos IEEE. Ao instalar GDs em todos os locais potenciais com as dimens es determinadas, a perda total de energia real do sistema foi reduzida em 83% e o perfil de tens o do sistema tamb m foi melhorado. Os harm nicos que est o presentes no sistema s o reduzidos colocando condensadores nas localiza es ptimas que s o determinadas utilizando o algoritmo PSO-HPF. Ao colocar os condensadores em localiza es ptimas, o perfil de tens o tamb m melhorado.

La taille et l'emplacement de la production d centralis e sont des facteurs cruciaux dans l'application de la production d centralis e pour la minimisation des pertes. Ce livre pr sente un algorithme pour l'identification de l'emplacement du bus l'aide de l'analyse de sensibilit , ainsi qu'un algorithme pour la d termination de la taille de la production d centralis e l'aide de la m thode PSO. Cette m thodologie est test e sur un syst me IEEE 15 bus. En installant des g n rateurs tous les emplacements potentiels avec les tailles d termin es, la perte totale de puissance r elle du syst me a t r duite de 83% et le profil de tension du syst me a galement t am lior . Les harmoniques pr sentes dans le syst me sont r duites en pla ant les condensateurs aux emplacements optimaux qui sont d termin s en utilisant l'algorithme PSO-HPF. En pla ant les condensateurs aux emplacements optimaux, le profil de tension est galement am lior .

The size and location of DG are the crucial factors in the application of DG for loss minimization. This book presents an algorithm for the identification of bus location using Sensitivity analysis and also an algorithm for the determination of size of the DG using PSO. This methodology is tested on IEEE 15 bus system. By installing DGs at all the potential locations with the determined sizes, the total real power loss of the system has been reduced by 83% and the voltage profile of the system is also improved. The harmonics that are present in the system are reduced by placing capacitors at the optimal locations which are determined by using PSO-HPF algorithm. By placing the capacitors at optimal locations, the voltage profile is also improved.

An integral terminal sliding mode control design was proposed to enhance the power quality of wind turbines under unbalanced voltage conditions. The design combines the robustness, fast response, and high quality transient characteristics of the integral terminal sliding mode control with the estimation properties of disturbance observers. It was successfully implemented to both the rotor-side (RSC) and grid side (GSC) converters of a DFIG-based wind turbine. The controller gains were auto tuned using a fuzzy logic approach. Its performance was assessed in the presence of deep voltage sags and under varying parameter conditions. Its dynamic response was also compared to that of the standard SMC. The performance analysis and simulation results confirmed the ability of the proposed approach to maintain the active power, currents, DC-link voltage and electromagnetic torque within their acceptable ranges even under the most severe unbalanced voltage conditions.