OVERVIEW

The teaching of marine electrical systems aims to consolidate the skills of the naval engineers students in an application context of the knowledge of electrical engineering. Training proposals are proposed on the sizing methods of the on-board electrical system, proceeding from the definition of the most appropriate configuration in compliance with the normative dictates to the study of the electrical balance and concluding with the choice of protection devices.

AIMS AND CONTENT

LEARNING OUTCOMES

The design principles of the on-board electrical systems are illustrated, with particular attention to the choice of the scheme, the voltage levels, cable sizing and the choice of protection systems.

AIMS AND LEARNING OUTCOMES

The aim of the course is to introduce the student to the basic problems related to the operation and design of the electrical systems on board. The object of the study consists of a representation of the main components of the electrical systems and their sizing with specific reference to the naval sector.

PREREQUISITES

There are no specific requirements.

TEACHING METHODS

Theoretical lessons and exercise (5 hours per week).

Students with valid certifications for

Specific Learning Disorders (SLDs), disabilities or other educational needs are invited to contact the teacher and the School's disability liaison at the beginning of teaching to agree on possible teaching arrangements that, while respecting the teaching objectives, take into account individual learning patterns.”

SYLLABUS/CONTENT

• Introduction

  • Concept of electrical power system
  • Laws and standards in civil application
  • Standard for military sector
• Generation and electric conversion
  • Primary electrical sources
  • Synchronous machine operation in steady state and under transient
  • Active and reactive power exchange
  • Per unit (p.u.) notation
  • Energy conversion
• Control systems
  • Voltage regulation
  • Frequency regulation
• Power system distribution
  • Overall consideration
  • Typical schema for civil and military (radial, loop,zonal)
  • Overcurrents: evaluation and protection
  • Generalities
  • Overcurrent protections
  • Short-circuit calculation (methods)
  • Breakers and fuses characteristics
  • Short-circuit protection
  • Protection coordination
• Energy end-use
  • Overall description
  • Lights
  • Electric drives
• Electric propulsion
  • Overall description
  • Conventional and electrical propulsion
  • Hybrid propulsion
• Elements of electric safety
  • Electric current effects
  • Direct and indirect contacts
  • Protection for direct and indirect contacts

RECOMMENDED READING/BIBLIOGRAPHY

• Teacher notes
• M. Piattelli, ‘Impianti Elettrici sulle navi', Tighler 2007
• M. Ceraolo, ‘Sistemi Elettrici Navali’, Accademia Militare 2006

TEACHERS AND EXAM BOARD

Exam Board

MARCO INVERNIZZI (President)

ANDREA BONFIGLIO

FABIO D'AGOSTINO

FEDERICO SILVESTRO (President Substitute)

LESSONS

LESSONS START

https://corsi.unige.it/corsi/8722/studenti-orario

EXAMS

EXAM DESCRIPTION

The learning check includes a written test lasting 2 hours. The admission test allows the oral exam to be taken, with an average duration of about 45 minutes.

ASSESSMENT METHODS

Verification of the acquisition of theoretical and practical knowledge of calculation methods essential for the design and operation of on-board electrical systems.

Exam schedule

FURTHER INFORMATION

Ask the professor for other information not included in the teaching schedule.