DEE-34107 Modeling and Analysis in Power Electronics, 5 cr
Additional information
The course is graded by a PC test which is organized at the end of period 1.
Suitable for postgraduate studies.
Person responsible
Henrik Alenius, Teuvo Suntio
Lessons
| Implementation | Period | Person responsible | Requirements |
| DEE-34107 2019-01 | 1 |
Teuvo Suntio |
The course is completed by a final exam, where a part of the scores (i.e., 6 points corresponding to one question) have to be obtained by special assignments (home works). |
Learning Outcomes
The course gives basic understanding on the method of dynamic modeling in the field of power electronics. After taking the course the student can define dynamic models for DC-DC converters and use them in efficient design of power electronic systems and, thus, avoiding trial-and-error type of design. The student becomes familiar with control design in the frequency-domain and is able to implement stable feedback control in simulator and predict the control performance based on stability margins. The student knows how to evaluate the effect of nonideal sources and loads, such as a photovoltaic generator and input/output filters on the dynamic performance of the DC-DC converter. The student understands the concept of impedance-based interactions and can take measures to minimize them in power electronic systems.
Content
| Content | Core content | Complementary knowledge | Specialist knowledge |
| 1. | Defining averaged, linearized and state-space models of DC-DC converters operated in CCM. Solving steady-state operating point. | Symbolic analysis using MATLAB. | |
| 2. | Solving small-signal transfer functions, defining two-port models for DC-DC converters and constructing and solving control block diagrams. | Understanding relations between time-domain and frequency-domain behavior using equivalent first and second-order system dynamics. The concept of dominant poles. | Designing systems for specified time-domain performance. Control design constraints caused by RHP-zero. The effect of nonideal source and load to dynamic performance. |
| 3. | Using transfer functions to design stable feedback control utilizing the loop-shaping method. Validating control performance using simulator. | Nyquist contour and its relation to frequency-response of a loop gain. Controller realization. | Analog and digital implementation of controllers. Origin of control delays in a DC-DC converter. |
Instructions for students on how to achieve the learning outcomes
The course will be graded based on completed simulation tasks and the final PC test.
Assessment scale:
Numerical evaluation scale (0-5)
Study material
| Type | Name | Author | ISBN | URL | Additional information | Examination material |
| Book | Dynamic Profile of Switched-Mode Converter: Modeling, Analysis and Control | Suntio, T. | 9783527407088 | Special knowledge on dynamic modeling of DC-DC converters in conventional applications. Few copies available at the library. | No | |
| Book | Fundamentals of Power Electronics | Erickson, Robert W., Maksimovic, Dragan | 978-0-306-48048-5 | Supporting material. Online version of the book can be accessed through TUT's library. | Yes | |
| Book | Power Electronic Converters: Dynamics and Control in Conventional and Renewable Energy Applications | Suntio, T., Messo, T., Puukko, J. | 9783527340224 | Special knowledge on modeling of DC-DC converters and three-phase inverters in renewable energy applications. | No | |
| Lecture slides | Suntio, T. | The slides are based on the course books. | No |
Prerequisites
| Course | Mandatory/Advisable | Description |
| DEE-33106 Switched-Mode Converters | Mandatory |
Additional information about prerequisites
The successfull passing of the course requires the mastering of the steady-state analysis of the operation of the DC-DC converters provided in DEE-33106. Moreover, basic understanding on state-space modeling is regarded as an advantage.
Correspondence of content
| Course | Corresponds course | Description |
| DEE-34107 Modeling and Analysis in Power Electronics, 5 cr | DEE-34106 Converter Dynamics and EMC, 5 cr |