The course is aimed at providing the fundamental notions for the understanding and analysis of the steady-state and dynamic phenomena in power systems, in particular in high voltage transmission systems and in medium voltage distribution systems. The contents refer to the structure and model of the systems, numerical techniques for load-flow calculations in steady-state conditions, behaviour in fault conditions, and dynamic models in the time domain. The topics are developed with an application focus, oriented towards real transmission and distribution systems.

I contenuti trattati intendono fornire conoscenze e capacità di comprensione relative ai fenomeni fisici, ai modelli e alle tecniche numeriche di soluzione delle reti elettriche di trasmissione e distribuzione in condizioni normali e di guasto, al funzionamento dinamico dei sistemi elettrici. Gli obiettivi minimi riguardano: - capacità di risolvere circuiti esemplificativi delle problematiche delle reti elettriche di trasmissione e distribuzione in condizioni normali e di guasto; - capacità di formulare correttamente le equazioni di calcolo dei flussi di potenza nelle reti di trasmissione e distribuzione; - conoscenza delle tecniche numeriche impiegate per la soluzione delle equazioni delle reti; - comprensione fisica dei principali fenomeni dinamici dei sistemi elettrici.

Le conoscenze e abilità richieste come prerequisiti riguardano: - nozioni di base di calcolo matriciale ed elettrotecnica; - conoscenza della struttura dei sistemi elettrici di produzione, trasporto e utilizzazione dell'energia elettrica; - conoscenza del comportamento delle macchine elettriche in condizioni normali e di guasto; - conoscenze elementari di programmazione (es. Matlab).

INTRODUCTION CONCEPTS (n h): Power system structure, ..... Line models. POWER FLOW ANALYSIS (n h): FAULT ANALYSIS POWER SYSTEM DYNAMICS (n h):

Oltre alle lezioni in aula (76 ore), sono previste esercitazioni in laboratorio informatico (24 ore) con l'impiego e lo sviluppo di programmi di calcolo (linee di trasmissione, equazioni di load flow, analisi dei guasti, dinamica dei sistemi elettrici).

Course material provided by the lecturers. There is no commercial textbook that covers all the topics of the course. Suggested readings: J.J. Grainger, W.D. Stevenson, Power System Analysis, McGraw Hill, ISBN 0-07-061293-5, 1994. controllare nuova versione Kersting edizione recente

Slides; Esercitazioni di laboratorio;

Modalita di esame: Prova scritta (in aula); Prova orale facoltativa;

Exam: Written test; Optional oral exam;

... The exam is written, with multiple-choice questions, open questions and exercises. The rationale for this type of exam is to verify that the main concepts and have been fully understood, the minimum objectives have been reached, and the students are able to identify the salient aspects and to synthesize these aspects in a written document. Duration: 2 hours. To access the exam room, each student must exhibit a valid document with photo. For the part with multiple-choice questions, only one response is correct, and there is no penalty for incorrect or missing responses. For the part with open questions, the responses must be written only on the sheets given by the Commission and no other paper is allowed. During the exam the students may exit from the room only if they withdraw from the exam or deliver the final writing. In case of withdrawal, the text of the exam must be given back with the indication of the student name and surname on the first page by adding the indication "WITHDRAWN". During the written exam, the students may use only clean paper, pen and non-programmable pocket calculators. Personal computers, laptops, tablets, as well as mobile phones and equipment for taking photos or for remote communication, are not allowed. The course material, clothes and the personal belongings must not remain on the work plan, nor under the desk, and must remain where the contents relevant to the exam cannot be reached. Contacting other persons or using the course material is not admitted. If a student is found with any material not allowed in accessible location, or contacting other persons, his/her exam is immediately annulled, and the student will have to leave the room. Any question concerning the written exam must be addressed to a member of the exam Commission. In case the question is of general interest, a member of the exam Commission will inform all the students participating in the exam. It is possible to renounce to the exam only by withdrawing from the written exam. After leaving the exam room, no changes will be allowed to the decision to withdraw or not from the exam. All the writings given to the Commission at the end of the written exam will be evaluated, scored, and registered. The score of the total exam is organized to reach a total of 31 points. If the student obtains 31 points (or at least 30 points with particularly effective responses to the open questions and exercises), the Commission may decide to give the final score 30/30 cum laude. The results of the exam will be communicated through the web portal. The students will have the possibility of viewing their corrected material during the period of the current exam session, in the date communicated by the professor responsible of the course.

Gli studenti e le studentesse con disabilita o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unita Special Needs, al fine di permettere al/la docente la declinazione piu idonea in riferimento alla specifica tipologia di esame.