01TVEQW

A.A. 2021/22

2021/22

Electrical Technologies for eMobility

The course aims at providing to the students the basic concepts of the electrical energy conversion systems employed in transportation electrification, with a particular focus on hybrid and electrical vehicles. The systems under study will be the electrical drives for powertrains and the battery chargers. The electrical motors belong to the new generations of eMotors dedicated to electrical traction, such as induction motors, synchronous reluctance motors and internal permanent magnet motors. The course will provide also the basic concepts of vector control of traction drives, along with testing techniques to obtain efficiency maps and torque production maps.

Electrical Technologies for eMobility

The course aims at providing to the students the basic concepts of the electrical energy conversion systems employed in transportation electrification, with a particular focus on hybrid and electrical vehicles. The systems under study will be the electrical drives for powertrains and the battery chargers. The electrical motors belong to the new generations of eMotors dedicated to electrical traction, such as induction motors, synchronous reluctance motors and internal permanent magnet motors. The course will provide also the basic concepts of power electronics (DC-DC converters and inverters) and vector control of traction drives.

Electrical Technologies for eMobility

Capability to understand the structure of a traction electrical drive consisting of a power electronic converter and an electrical machine. Ability to compare different electric drive solutions based on different motor technologies. Capacity to design or to tune the control loops (torque, current, speed) of an electric drive.

Electrical Technologies for eMobility

• Capability to understand the structure of a traction electrical drive consisting of battery, power electronic converters and electrical machines. • Ability to compare different electric drive solutions based on different motor technologies. • Ability to provide the right specifications for the components of an electrical powertrain, according to the vehicle specifications. • Capacity to develop or use proper simulation models for the simulation of power converters and eMotors that must be embedded in larger vehicle models. • Capacity to calibrate the vector control for an AC motor taking into account the motor flux maps and the sampling/switching frequency • Capacity to design the control of power converters for traction applications.

Electrical Technologies for eMobility

Fundamentals in electrical circuits, electrical machines, automatic control or the basic concepts in systems theory.

Electrical Technologies for eMobility

Fundamentals in electrical circuits, electrical machines, automatic control or the basic concepts in systems theory.

Electrical Technologies for eMobility

• Introduction: general description of an electric drive • Power electronic devices used in power electronic converters • Basic operation principles of a switch-mode power electronic converter. Canonical commutation cell. • DC/DC converters for eMobility. • DC / AC converters (inverters) for eMobility. • Electrical motor solutions for eMobility: induction motor, synchronous reluctance motor, internal permanent magnet motor • Fundamental concepts of vector control for AC motors fed by inverters • Vector control of eDrives: design of the drive control loops (current, speed and position). • Implementation issues of high performance vector control of eMotors: Maximum Torque per Ampere (MTPA), Maximum Torque per Volt (MTPV), torque estimation, computation of maximum torque according to the voltage and current limits • Advanced testing of eDrives. • Battery chargers: on-board and off-board solutions.

Electrical Technologies for eMobility

• Introduction: general description of an electric drive • Power electronic devices used in power electronic converters • Basic operation principles of a switch-mode power electronic converter. Canonical commutation cell. • DC/DC converters for eMobility. • DC / AC converters (inverters) for eMobility. • Electrical motor solutions for eMobility: induction motor, synchronous reluctance motor, internal permanent magnet motor • Fundamental concepts of vector control for AC motors fed by inverters • Vector control of eDrives: design of the drive control loops (current, speed and position). • Implementation issues of high performance vector control of eMotors: Maximum Torque per Ampere (MTPA), Maximum Torque per Volt (MTPV), torque estimation, computation of maximum torque according to the voltage and current limits • Traction battery: technologies, rated parameters, charging modes. • Battery chargers: on-board and off-board solutions.

Electrical Technologies for eMobility

Electrical Technologies for eMobility

Electrical Technologies for eMobility

In addition to classroom lectures, laboratory activities are planned. The laboratory exercises concern the analysis of the operation of an electric drive with internal permanent magnet motor.

Electrical Technologies for eMobility

In addition to classroom lectures, laboratory activities are planned. The laboratory exercises concern the analysis of a three-phase inverter and the operation of an electric drive with internal permanent magnet/synchronous reluctance motor.

Electrical Technologies for eMobility

• Neil Storey “Electronics: a system approach”, Pearson Education • T.L. Floyd “Electronic Devices”, Prentice Hall • Ned Mohan, Tore Undeland, Tim Robbins, "Elettronica di Potenza", Edizioni Hoepli • Rashid, M. H., 'Elettronica di Potenza', Prentice Hall • John Kassakian, Marting F. Schlecht, George V. Verghese, “Principles of Power Electronics”, Pearson Education.

Electrical Technologies for eMobility

• Robert W. Erickson, Dragan Maksimovic, “Fundamentals of Power Electronics”, Kluwer Academic Publishers, 2004 • Rashid, M. H., 'Elettronica di Potenza', Prentice Hall • John Kassakian, Marting F. Schlecht, George V. Verghese, “Principles of Power Electronics”, Pearson Education. • Ali Emadi, "Advanced Electric Drive Systems", CRC Press, 2014 • Chris Mi, “Hybrid Electric Vehicles”, John Wiley&Sons, 2018 • Seung-Ki Sul, “Control of Electric Machine Drive Systems”, Wiley&Sons, 2011

Electrical Technologies for eMobility

**Modalità di esame:** Prova scritta (in aula);

Electrical Technologies for eMobility

The exam consists of a written test of 150 minutes, containing multiple choice questions (24 points) and a question with open answer (6 points). During the exam, the use of books, notes or equivalent materials is not allowed. In addition, during the teaching students will be given a report to be elaborated at home, regarding the sizing of an electric drive and the design of the its torque control scheme. The report is rated up to 30 points. The final score is calculated as the weighted arithmetic mean between the written test (80%) and the score obtained for the report (20%). The rules of examination are described and discussed during the introductory class.

Electrical Technologies for eMobility

**Exam:** Written test;

Electrical Technologies for eMobility

The exam consists of a written test of 150 minutes, containing multiple choice questions (24 points) and a question with open answer (6 points). During the exam, the use of books, notes or equivalent materials is not allowed. In addition, during the teaching students will be given a report to be elaborated at home, regarding the sizing of an electric drive and the design of the its torque control scheme. The report is rated up to 30 points. The final score is calculated as the weighted arithmetic mean between the written test (80%) and the score obtained for the report (20%). The rules of examination are described and discussed during the introductory class.

Electrical Technologies for eMobility

**Modalità di esame:** Prova scritta a risposta aperta o chiusa tramite PC con l'utilizzo della piattaforma di ateneo Exam integrata con strumenti di proctoring (Respondus); Elaborato progettuale in gruppo;

Electrical Technologies for eMobility

The exam consists of a written test of 150 minutes, containing multiple choice questions (24 points) and three fast numerical computations (6 points). During the exam, the use of books, notes or equivalent materials is not allowed. In addition, during the teaching students will be given a report to be elaborated at home, regarding the sizing of an electric drive and the design of the its torque control scheme. The report is rated up to 30 points. The final score is calculated as the weighted arithmetic mean between the written test (80%) and the score obtained for the report (20%). The rules of examination are described and discussed during the introductory class.

Electrical Technologies for eMobility

**Exam:** Computer-based written test with open-ended questions or multiple-choice questions using the Exam platform and proctoring tools (Respondus); Group project;

Electrical Technologies for eMobility

The exam consists of a written test of 150 minutes, containing multiple choice questions (24 points) and three fast numerical computations (6 points). During the exam, the use of books, notes or equivalent materials is not allowed. In addition, during the teaching students will be given a report to be elaborated at home, regarding the sizing of an electric drive (battery, DC-DC converter, inverter and eMotor) and the design of motor torque control scheme and of the DC-DC converter. The report is rated up to 30 points. The final score is calculated as the weighted arithmetic mean between the written test (80%) and the score obtained for the report (20%). The rules of examination are described and discussed during the introductory class.

Electrical Technologies for eMobility

**Modalità di esame:** Prova scritta a risposta aperta o chiusa tramite PC con l'utilizzo della piattaforma di ateneo Exam integrata con strumenti di proctoring (Respondus); Elaborato progettuale in gruppo;

Electrical Technologies for eMobility

The exam consists of a written test of 150 minutes, containing multiple choice questions (24 points) and three fast numerical computations (6 points). During the exam, the use of books, notes or equivalent materials is not allowed. In addition, during the teaching students will be given a report to be elaborated at home, regarding the sizing of an electric drive and the design of the its torque control scheme. The report is rated up to 30 points. The final score is calculated as the weighted arithmetic mean between the written test (80%) and the score obtained for the report (20%). The rules of examination are described and discussed during the introductory class.

Electrical Technologies for eMobility

**Exam:** Computer-based written test with open-ended questions or multiple-choice questions using the Exam platform and proctoring tools (Respondus); Group project;

Electrical Technologies for eMobility

The exam consists of a written test of 150 minutes, containing multiple choice questions (24 points) and three fast numerical computations (6 points). During the exam, the use of books, notes or equivalent materials is not allowed. In addition, during the teaching students will be given a report to be elaborated at home, regarding the sizing of an electric drive (battery, DC-DC converter, inverter and eMotor) and the design of motor torque control scheme and of the DC-DC converter. The report is rated up to 30 points. The final score is calculated as the weighted arithmetic mean between the written test (80%) and the score obtained for the report (20%). The rules of examination are described and discussed during the introductory class.

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Corso Duca degli Abruzzi, 24 - 10129 Torino, ITALY

Corso Duca degli Abruzzi, 24 - 10129 Torino, ITALY