Electric Drives (5 cr)

Evaluation scale

0-5

Objective

TSASV Competence in electric power systems
The students master the basic calculation of connected three-phase circuits and the concepts related to power. They know the basic structure of the electricity supply system, its basic components and protection principles. They master the basic structure of common electric machines, their operating principles and ranges of use. They have the basic knowledge of the structure, operation and control of regulated AC drives.

TSASO Design competence
They are able to design simple motor feeder and control circuits. They are able to dimension different types of motor drives in ordinary applications.

EA-ER (oli EP) Engineering practice
They have the ability to combine theory and practice to solve engineering problems.

Content

Connected three-phase systems and three-phase powers. The basic components and network structure of the electricity supply system. The structure and operation of common electric machines. The structure and operation of regulated electric drives. The principles of choosing, dimensioning and controlling electric drives.

Teaching methods

- Basic calculation on three phase circuits and power
- Basic structure of the electric supply system and it's basic components and protection
- Basic structure of common electric machines and their operation principles
- The structure, operation and control of regulated AC drives
- Design of simple motor feeder and control circuits
- Combination of theory and practice to solve engineering problems

Assessment criteria, satisfactory (1)

Excellent (5): The student masters the basics of electric power systems and can independently apply the knowledge to the different types of powercircuit calculations. The student masters the basics of electric motor technology. The student can independently design a simple motor control and feeder circuit and dimension the components of a simple electric drive system.

Very good (4): The student masters the essential things of electric power systems and can solve basic types of power circuits calculations. The student undenstands the basics of electric motor technology. The student understands, which issues need to be taking into consideration in the dimensioning the components of a simple electric drive system. The student can design a simple motor control and feeder circuit.

Good (3): The student knows the basics of electric powercircuits. The student can apply the knowledge to the simple dimensioning and calculation assignments. The student knows, which issues need to be taking into consideration when choosing the right components to the electric drive system. The student knows, how to design a simple motor control and feeder circuit.

Satisfactory (2): The student knows the basic things and terminology of the electric power systems, but has difficulties for applying these to practical problems. The student can satisfactorily solve basic calculations. The student knows which things are involved when designing a motor drive or simple motor circuits.

Adequate (1): The student knows the basic functions and terminology of the electric power systems, but has difficulties for applying these to practical problems.

Qualifications

Basics of electrical engineering:
Ohm's law, Kirchoff's circuit laws, knowledge of basic electrical components (resistor, inductor, capasitor), AC power calculations (active power, reactive power, apparent power, power factor), DC- and AC-circuits calculations.