dinakara prasad reddy (70 résultats)

Taschenbuch. Etat : Neu. Neuware -Distribution Power Flow is an important tool for the analysis of distribution system and it is used in the operational as well as in planning stages. Distribution system with their radial structure and wide ranging resistance and reactance values are inherently ill conditioned and conventional load flow methods like Gauss-Seidel, Newton-Raphson and fast decoupled techniques are inefficient in solving such networks. The recent tendency towards the distribution automation (DA) has led to focus on robust and efficient load flow methods. Among various distribution load flow algorithms, the formation of distribution load flow impedance matrix can be formed from product of BIBC and BCBV matrices. The effectiveness of the proposed method is validated on various standard IEEE balanced test systems for different load models and compared with existing algorithms. The future load growth on various IEEE balanced systems is also studied. The proposed method is also tested on unbalanced radial distribution system. Test results reveal the validity of the proposed method.Books on Demand GmbH, Überseering 33, 22297 Hamburg 88 pp. Englisch.

Taschenbuch. Etat : Neu. Neuware -Optimal capacitor placement determines the size and location of capacitors be installed on a radial distribution feeder. The capacitor placement problem is an optimization problem having an objective function composed of power losses subjected to bus voltage constraints that are commonly solved by employing a mathematical programming method. This book presents capacitor placement method which employs the differential evolution (DE) method and fuzzy logic for a given load pattern of the distribution system. The fuzzy logic reduces the number of alternatives to be examined and DE finds the optimal solution. This method is beneficial for the capacitor placement of large distribution systems. The proposed DE Algorithm is implemented in MATLAB for 15 bus, 33bus, 34 bus and 69 bus radial distribution systems, and results are more promising when compared to other Evolutionary algorithms.Books on Demand GmbH, Überseering 33, 22297 Hamburg 76 pp. Englisch.

Taschenbuch. Etat : Neu. Neuware -In this book an implementation of unified intelligent controller methods for voltage controlled PWM driven three phase Induction Motor drive system has been developed and analyzed in detail. The book involves Speed Control of Induction Motor by using Genetic Algorithm Based Hybrid Controllers with compared Artificial Intelligence Techniques such as PI and PI-Fuzzy Hybrid Controller. The classical approach of manipulating speed controllers for vector control of an induction motor creates many problems like instability, rise time and settling time during load disturbances. Indirect vector control method is used to control the speed of Induction motor. In this book PI and PI plus fuzzy hybrid controllers are used. By converting three phase supply currents coming from stator to Flux and Torque components of current, the speed responses such as rise time, overshoot, settling time, speed regulation at load have been observed and compared among the techniques. The PI controller parameters defined by an objective function are calculated by using Genetic Algorithms presented good performance compared to Fuzzy PI Hybrid controller.Books on Demand GmbH, Überseering 33, 22297 Hamburg 76 pp. Englisch.

Taschenbuch. Etat : Neu. Neuware -In this book implementation of unified intelligent controller methods for voltage controlled PWM driven three phase Induction Motor drive system has been developed and analyzed in detail. The classical approach of manipulating speed controllers for vector control of an induction motor creates many problems like instability, rise time and settling time during load disturbances. In this paper fuzzy plus PI and self tuning of PI plus fuzzy hybrid controllers are used. To decrease rise time and settling time these controllers are designed in Matlab/Simulink and used for a 5 HP, 3 Phase cage type Induction motor. Hybrid controllers perform well and gives better response when compared with classical controller. The simulation was carried out with the help of SIMULINK & MATLAB and the results were found to be in accordance with theory.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 68 pp. Englisch.

Etat : New.

Etat : New.

Taschenbuch. Etat : Neu. Neuware -En este libro se ha desarrollado y analizado en detalle una implementación de métodos de control inteligente unificado para un sistema de accionamiento de motor de inducción trifásico controlado por PWM. El libro incluye el control de la velocidad del motor de inducción mediante el uso de controladores híbridos basados en algoritmos genéticos con técnicas de inteligencia artificial comparadas, como el controlador híbrido PI y PI-Fuzzy. El enfoque clásico de la manipulación de los controladores de velocidad para el control vectorial de un motor de inducción crea muchos problemas como la inestabilidad, el tiempo de subida y el tiempo de asentamiento durante las perturbaciones de carga. El método de control vectorial indirecto se utiliza para controlar la velocidad del motor de inducción. En este libro se utilizan controladores híbridos PI y PI más difusos. Convirtiendo las corrientes de alimentación trifásicas procedentes del estator en componentes de flujo y par de la corriente, se han observado y comparado las respuestas de velocidad como el tiempo de subida, el sobreimpulso, el tiempo de asentamiento y la regulación de velocidad en carga entre las técnicas. Los parámetros del controlador PI definidos por una función objetivo se calculan mediante algoritmos genéticos y presentan un buen rendimiento en comparación con el controlador híbrido PI difuso.Books on Demand GmbH, Überseering 33, 22297 Hamburg 68 pp. Spanisch.

Taschenbuch. Etat : Neu. Neuware -La colocación óptima de los condensadores determina el tamaño y la ubicación de los condensadores que deben instalarse en un alimentador de distribución radial. El problema de colocación de los condensadores es un problema de optimización que tiene una función objetivo compuesta por las pérdidas de potencia sujetas a las restricciones de tensión de los buses y que se resuelve comúnmente empleando un método de programación matemática. Este libro presenta el método de colocación de condensadores que emplea el método de evolución diferencial (ED) y la lógica difusa para un patrón de carga dado del sistema de distribución. La lógica difusa reduce el número de alternativas a examinar y la ED encuentra la solución óptima. Este método es beneficioso para la colocación de condensadores en grandes sistemas de distribución. El algoritmo de ED propuesto se implementa en MATLAB para sistemas de distribución radial de 15 buses, 33 buses, 34 buses y 69 buses, y los resultados son más prometedores en comparación con otros algoritmos evolutivos.Books on Demand GmbH, Überseering 33, 22297 Hamburg 76 pp. Spanisch.

Taschenbuch. Etat : Neu. Neuware -En este libro se ha desarrollado y analizado en detalle la implementación de métodos de controladores inteligentes unificados para sistemas de accionamiento de motores de inducción trifásicos controlados por PWM. El enfoque clásico de la manipulación de los controladores de velocidad para el control vectorial de un motor de inducción crea muchos problemas como la inestabilidad, el tiempo de subida y el tiempo de asentamiento durante las perturbaciones de carga. En este trabajo se utilizan controladores difusos más PI y auto-sintonía de PI más controladores híbridos difusos. Para reducir el tiempo de subida y el tiempo de estabilización, estos controladores se diseñan en Matlab/Simulink y se utilizan para un motor de inducción trifásico de 5 HP. Los controladores híbridos funcionan bien y dan una mejor respuesta en comparación con el controlador clásico. La simulación se llevó a cabo con la ayuda de SIMULINK y MATLAB y los resultados se encontraron de acuerdo con la teoría.Books on Demand GmbH, Überseering 33, 22297 Hamburg 64 pp. Spanisch.

Etat : New.

Etat : New.

Etat : New.

Taschenbuch. Etat : Neu. Neuware -Dans ce livre, une mise en ¿uvre de méthodes de contrôle intelligent unifié pour un système d'entraînement par moteur à induction triphasé commandé par tension PWM a été développée et analysée en détail. Le livre implique le contrôle de la vitesse du moteur à induction en utilisant des contrôleurs hybrides basés sur l'algorithme génétique avec des techniques d'intelligence artificielle comparées telles que les contrôleurs hybrides PI et PI-Fuzzy. L'approche classique de la manipulation des contrôleurs de vitesse pour le contrôle vectoriel d'un moteur à induction crée de nombreux problèmes comme l'instabilité, le temps de montée et le temps de stabilisation pendant les perturbations de la charge. La méthode de contrôle vectoriel indirect est utilisée pour contrôler la vitesse du moteur à induction. Dans cet ouvrage, les contrôleurs PI et PI plus hybride flou sont utilisés. En convertissant les courants d'alimentation triphasés provenant du stator en composantes de courant de flux et de couple, les réponses de vitesse telles que le temps de montée, le dépassement, le temps d'établissement, la régulation de vitesse à la charge ont été observées et comparées entre les techniques. Les paramètres du contrôleur PI définis par une fonction objective sont calculés à l'aide d'algorithmes génétiques et présentent de bonnes performances par rapport au contrôleur hybride Fuzzy PI.Books on Demand GmbH, Überseering 33, 22297 Hamburg 68 pp. Französisch.

Taschenbuch. Etat : Neu. Neuware -Dans ce livre, la mise en ¿uvre de méthodes de contrôle intelligentes et unifiées pour un système d'entraînement par moteur à induction triphasé commandé par la tension PWM a été développée et analysée en détail. L'approche classique de la manipulation des contrôleurs de vitesse pour le contrôle vectoriel d'un moteur à induction crée de nombreux problèmes tels que l'instabilité, le temps de montée et le temps de stabilisation pendant les perturbations de la charge. Dans cet article, des contrôleurs hybrides flous plus PI et auto-adaptatifs PI plus flous sont utilisés. Pour réduire le temps de montée et le temps de stabilisation, ces contrôleurs sont conçus en Matlab/Simulink et utilisés pour un moteur à induction triphasé à cage de 5 CV. Les contrôleurs hybrides fonctionnent bien et donnent une meilleure réponse en comparaison avec les contrôleurs classiques. La simulation a été effectuée à l'aide de SIMULINK et de MATLAB et les résultats se sont avérés conformes à la théorie.Books on Demand GmbH, Überseering 33, 22297 Hamburg 64 pp. Französisch.

Etat : New.

Etat : New.

Etat : New.

Taschenbuch. Etat : Neu. Neuware -In questo libro è stata sviluppata e analizzata in dettaglio l'implementazione di metodi di controllo intelligenti unificati per il sistema di azionamento di motori a induzione trifase controllati dalla tensione PWM. Il libro prevede il controllo della velocità del motore a induzione mediante l'utilizzo di controllori ibridi basati su algoritmi genetici e tecniche di intelligenza artificiale a confronto, come i controllori ibridi PI e PI-Fuzzy. L'approccio classico di manipolazione dei regolatori di velocità per il controllo vettoriale di un motore a induzione crea molti problemi come l'instabilità, il tempo di salita e il tempo di assestamento durante i disturbi del carico. Il metodo di controllo vettoriale indiretto viene utilizzato per controllare la velocità del motore a induzione. In questo libro vengono utilizzati controllori ibridi PI e PI più fuzzy. Convertendo le correnti di alimentazione trifase provenienti dallo statore in componenti di flusso e di coppia della corrente, sono state osservate e confrontate le risposte della velocità, quali tempo di salita, sovraelongazione, tempo di assestamento, regolazione della velocità al carico. I parametri del controllore PI definiti da una funzione obiettivo e calcolati con algoritmi genetici hanno presentato buone prestazioni rispetto al controllore ibrido Fuzzy PI.Books on Demand GmbH, Überseering 33, 22297 Hamburg 68 pp. Italienisch.

Taschenbuch. Etat : Neu. Neuware -In diesem Buch wurde eine Implementierung einheitlicher intelligenter Reglermethoden für ein spannungsgesteuertes PWM-gesteuertes dreiphasiges Induktionsmotor-Antriebssystem entwickelt und im Detail analysiert. Das Buch befasst sich mit der Drehzahlregelung eines Induktionsmotors unter Verwendung von Hybridreglern auf der Basis eines genetischen Algorithmus, die mit Techniken der künstlichen Intelligenz wie PI- und PI-Fuzzy-Hybridregler verglichen werden. Der klassische Ansatz der Manipulation von Drehzahlreglern für die Vektorregelung eines Induktionsmotors verursacht viele Probleme wie Instabilität, Anstiegszeit und Einschwingzeit bei Laststörungen. Zur Regelung der Drehzahl eines Induktionsmotors wird die indirekte Vektorregelung eingesetzt. In diesem Buch werden PI- und PI-plus-Fuzzy-Hybrid-Regler verwendet. Durch die Umwandlung der vom Stator kommenden dreiphasigen Versorgungsströme in Fluss- und Drehmomentkomponenten des Stroms wurden die Drehzahlreaktionen wie Anstiegszeit, Überschwingen, Einschwingzeit und Drehzahlregelung bei Last beobachtet und zwischen den Techniken verglichen. Die Parameter des PI-Reglers, die durch eine Zielfunktion definiert sind, werden mit Hilfe von genetischen Algorithmen berechnet und zeigen eine gute Leistung im Vergleich zum Fuzzy-PI-Hybridregler.Books on Demand GmbH, Überseering 33, 22297 Hamburg 68 pp. Deutsch.

Taschenbuch. Etat : Neu. Neuware -Neste livro foi desenvolvida e analisada em pormenor uma implementação de métodos unificados de controlo inteligente para o sistema de accionamento por PWM trifásico controlado por tensão. O livro envolve o Controlo de Velocidade do Motor de Indução usando Controladores Híbridos Baseados em Algoritmos Genéticos com Técnicas de Inteligência Artificial comparadas, tais como PI e PI-Fuzzy Hybrid Controller. A abordagem clássica de manipular controladores de velocidade para controlo vectorial de um motor de indução cria muitos problemas como instabilidade, tempo de subida e tempo de assentamento durante distúrbios de carga. O método de controlo vectorial indirecto é utilizado para controlar a velocidade de um motor de indução. Neste livro são utilizados controladores híbridos PI e PI mais fuzzy. Ao converter correntes de alimentação trifásicas provenientes do estator em componentes de Fluxo e Binário da corrente, foram observadas e comparadas entre as técnicas as respostas de velocidade, tais como o tempo de subida, sobreaquecimento, tempo de assentamento, regulação da velocidade em carga. Os parâmetros do controlador PI definidos por uma função objectiva são calculados utilizando Algoritmos Genéticos apresentados com bom desempenho em comparação com o controlador Fuzzy PI Híbrido.Books on Demand GmbH, Überseering 33, 22297 Hamburg 68 pp. Portugiesisch.

Taschenbuch. Etat : Neu. Neuware -In questo libro è stata sviluppata e analizzata in dettaglio l'implementazione di metodi di controllo intelligenti unificati per il sistema di azionamento del motore a induzione trifase controllato da PWM in tensione. L'approccio classico di manipolazione dei regolatori di velocità per il controllo vettoriale di un motore a induzione crea molti problemi come instabilità, tempo di salita e di assestamento durante i disturbi del carico. In questo lavoro vengono utilizzati controllori ibridi fuzzy più PI e autoregolazione di PI più fuzzy. Per ridurre il tempo di salita e di assestamento, questi controllori sono stati progettati in Matlab/Simulink e utilizzati per un motore a induzione a gabbia trifase da 5 CV. I controllori ibridi hanno buone prestazioni e forniscono una risposta migliore rispetto ai controllori classici. La simulazione è stata effettuata con l'aiuto di SIMULINK e MATLAB e i risultati sono risultati conformi alla teoria.Books on Demand GmbH, Überseering 33, 22297 Hamburg 64 pp. Italienisch.

Taschenbuch. Etat : Neu. Neuware -In diesem Buch wurde die Implementierung einheitlicher intelligenter Reglermethoden für ein spannungsgesteuertes PWM-gesteuertes dreiphasiges Induktionsmotor-Antriebssystem entwickelt und im Detail analysiert. Der klassische Ansatz der Manipulation von Drehzahlreglern für die Vektorregelung eines Induktionsmotors verursacht viele Probleme wie Instabilität, Anstiegszeit und Einschwingzeit bei Laststörungen. In diesem Beitrag werden Fuzzy- und PI-Regler sowie selbsteinstellende PI- und Fuzzy-Hybridregler verwendet. Um die Anstiegszeit und die Einschwingzeit zu verringern, wurden diese Regler in Matlab/Simulink entworfen und für einen 5-PS-Induktionsmotor mit 3 Phasen-Käfig verwendet. Die hybriden Regler zeigen eine gute Leistung und ein besseres Ansprechverhalten im Vergleich zu den klassischen Reglern. Die Simulation wurde mit Hilfe von SIMULINK und MATLAB durchgeführt, und die Ergebnisse stimmten mit der Theorie überein.Books on Demand GmbH, Überseering 33, 22297 Hamburg 64 pp. Deutsch.

Taschenbuch. Etat : Neu. Neuware -Neste livro foi desenvolvida e analisada em pormenor a implementação de métodos unificados de controlo inteligente para o sistema de accionamento por PWM trifásico controlado por tensão. A abordagem clássica de manipular controladores de velocidade para controlo vectorial de um motor de indução cria muitos problemas como instabilidade, tempo de subida e tempo de assentamento durante distúrbios de carga. Neste artigo são utilizados controladores híbridos fuzzy plus PI e auto-ajuste de PI plus fuzzy. Para diminuir o tempo de subida e tempo de assentamento, estes controladores são concebidos em Matlab/Simulink e utilizados para um motor de indução de 5 HP, tipo gaiola trifásica. Os controladores híbridos funcionam bem e dão uma melhor resposta quando comparados com os controladores clássicos. A simulação foi realizada com a ajuda da SIMULINK & MATLAB e os resultados foram encontrados em conformidade com a teoria.Books on Demand GmbH, Überseering 33, 22297 Hamburg 64 pp. Portugiesisch.

Taschenbuch. Etat : Neu. Optimale Platzierung von Kondensatoren in Verteilungssystemen | Dinakara Prasad Reddy P. | Taschenbuch | Deutsch | Verlag Unser Wissen | EAN 9786204146805 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

Taschenbuch. Etat : Neu. Drehzahlregelung eines Asynchronmotors mit einem Hybridregler | P Dinakara Prasad Reddy (u. a.) | Taschenbuch | Paperback | 68 S. | Deutsch | 2022 | Verlag Unser Wissen | EAN 9786204896786 | Verantwortliche Person für die EU: Verlag Unser Wissen, Brivibas Gatve 197, 1039 RIGA, LITAUEN, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.

Taschenbuch. Etat : Neu. Indirekte Vektorregelung eines Asynchronmotors mit hybriden Reglern | P. Dinakara Prasad Reddy (u. a.) | Taschenbuch | Paperback | 64 S. | Deutsch | 2022 | Verlag Unser Wissen | EAN 9786204899558 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this book an implementation of unified intelligent controller methods for voltage controlled PWM driven three phase Induction Motor drive system has been developed and analyzed in detail. The book involves Speed Control of Induction Motor by using Genetic Algorithm Based Hybrid Controllers with compared Artificial Intelligence Techniques such as PI and PI-Fuzzy Hybrid Controller. The classical approach of manipulating speed controllers for vector control of an induction motor creates many problems like instability, rise time and settling time during load disturbances. Indirect vector control method is used to control the speed of Induction motor. In this book PI and PI plus fuzzy hybrid controllers are used. By converting three phase supply currents coming from stator to Flux and Torque components of current, the speed responses such as rise time, overshoot, settling time, speed regulation at load have been observed and compared among the techniques. The PI controller parameters defined by an objective function are calculated by using Genetic Algorithms presented good performance compared to Fuzzy PI Hybrid controller. 76 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Distribution Power Flow is an important tool for the analysis of distribution system and it is used in the operational as well as in planning stages. Distribution system with their radial structure and wide ranging resistance and reactance values are inherently ill conditioned and conventional load flow methods like Gauss-Seidel, Newton-Raphson and fast decoupled techniques are inefficient in solving such networks. The recent tendency towards the distribution automation (DA) has led to focus on robust and efficient load flow methods. Among various distribution load flow algorithms, the formation of distribution load flow impedance matrix can be formed from product of BIBC and BCBV matrices. The effectiveness of the proposed method is validated on various standard IEEE balanced test systems for different load models and compared with existing algorithms. The future load growth on various IEEE balanced systems is also studied. The proposed method is also tested on unbalanced radial distribution system. Test results reveal the validity of the proposed method. 88 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Optimal capacitor placement determines the size and location of capacitors be installed on a radial distribution feeder. The capacitor placement problem is an optimization problem having an objective function composed of power losses subjected to bus voltage constraints that are commonly solved by employing a mathematical programming method. This book presents capacitor placement method which employs the differential evolution (DE) method and fuzzy logic for a given load pattern of the distribution system. The fuzzy logic reduces the number of alternatives to be examined and DE finds the optimal solution. This method is beneficial for the capacitor placement of large distribution systems. The proposed DE Algorithm is implemented in MATLAB for 15 bus, 33bus, 34 bus and 69 bus radial distribution systems, and results are more promising when compared to other Evolutionary algorithms. 76 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this book implementation of unified intelligent controller methods for voltage controlled PWM driven three phase Induction Motor drive system has been developed and analyzed in detail. The classical approach of manipulating speed controllers for vector control of an induction motor creates many problems like instability, rise time and settling time during load disturbances. In this paper fuzzy plus PI and self tuning of PI plus fuzzy hybrid controllers are used. To decrease rise time and settling time these controllers are designed in Matlab/Simulink and used for a 5 HP, 3 Phase cage type Induction motor. Hybrid controllers perform well and gives better response when compared with classical controller. The simulation was carried out with the help of SIMULINK & MATLAB and the results were found to be in accordance with theory. 68 pp. Englisch.