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Moottorikäyttöjen säätö

Structure Type: Study unit
Code: ST00BJ19
Curriculum: SAT 2024V
Level: Bachelor of Engineering
Year of Study: 3 (2026-2027)
Semester: Autumn
Credits: 5 cr
Responsible Teacher: Iskala, Marko
Language of Instruction: Finnish

Learning Outcomes

Having completed the course, the student knows the principles of modern speed controlled motor drive and the principles of inverters and grid connected rectifiers used in distributed energy production and can apply acquired knowledge in the commissioning of a controlled electric drive application. The student understands the principal differences between various types of motor drives, such as scalar, vector and direct torque control. The student perceives the differences in various inverter controls used in distributed energy production, as well as the differences between the implementations of motor and energy production drives. The student understands the control principles for medium and low voltage synchronous machines, also when implemented with a frequency converter application. The student knows how to assemble a compatible entity out of individual components.

Student's Workload

135 hours, containing 50 h of scheduled contact studies. In addition to lectures, 4*4 h of laboratory work. Two hours reserved for the examination.

Prerequisites / Recommended Optional Courses

Safety at Work and Electrical Work Safety, MATLAB and Simulink, Power Electronics, Motor Drive Control and Protection


Principles of determining a transfer function for the student to be able to create a simulation model out of entities of various size. The starting point for the simulation model is speed and current control of a DC motor with a DC drive. Simulation models compiled from transfer functions prepared during lectures will be used for simulating the behavious of power electronics components and tuning the entities. Learning to read various control charts used in power electronics control applications. Principles of scalar, vector and direct torques control in squirrel cage motors. Most typical inverter-based control applications used indistributed energy production. The structure and control principles of grid rectifier used both in motors and energy production, also from the point of view of powers and the quality of energy. In synchronous machine applications, the principles of cycloconverter and high power DC link frequency converter. Principles and applications of permanent magnet and reluctance synchronous machine controls. EMC in controlled drives, beating currents and overvoltages and their prevention. In laboratory assignments, the most typical control applcations dealt with lectures will be studied by parametering and testing speed and torque controlled drives using various motors on various operation quandrants.

Recommended or Required Reading and Other Learning Resources/Tools

Material provided by the teacher.

Mode of Delivery / Planned Learning Activities and Teaching Methods

Contact teaching, independently completed calculation assignments, supervised laboratory exercises.

Assessment Criteria

The general assessment criteria of VAMK.

Assessment Methods

The teacher’s assessment, submitted laboratory reports and assignments, an examination.