Project

Power Electronic Converter as a Sensor to Predict Performance and Efficiency of Drive System

Publisher

Supervisor

Location

Greater Copenhagen area

Background

Variable frequency drive has inbuilt voltage, current & temperature sensors. These sensors can provide important information of drive operating condition and health prognostics. The intelligent algorithms are required to extract useful information from feedback signals provided by these sensors. The information is received by the drive in the form of (i) Raw signals (ii) Estimated signals (iii) Controller signals or (iv) External signals. Raw signals are instantaneous signals received from inbuilt sensors with highest bandwidth. Whereas estimated signals are using algorithm to estimate additional signals/variable from raw signals for example instantaneous active and reactive power of drive can be derived from voltage and current sensors output. The drive uses open loop or close loop controller for accurate control of speed and position of the application. These controller output reference for example voltages and currents carries useful information about the system working condition. And drive also have external sensors which are connected to monitor vibration, application temperature, humidity, flow and pressure etc. These four categories of signals are used to estimate and predict working point, losses, output, input power. These estimations can be used to monitor and predict health of entire drive system (drive + grid + motor + load). It also requires develop intelligent algorithm to predict performance and efficiency of drive by employing available information of inbuilt and external sensors.

 

The project exploits available electrical signals i.e. motor current, motor voltage, to estimation accurate, high precision and high bandwidth signals for example airgap flux, input real and reactive power to motor, torque and speed and rotational speed.

The project will use various available electrical signals of drive with the existing drive sensors to predict condition of the drive system. The available signals will be used to estimate efficiency and predict performance of drive.
Objective

The objective of this project is to develop suitable algorithm to estimate useful signals of drive based on available inbuilt sensors for example voltage, current and temperature sensors. The estimation of drive signals includes real and reactive power, flux, torque, rotor speed, grid unbalance grid power quality etc. Develop an algorithm to estimate high precision signals of VVCp/Vector control IM drive system in Matlab and implement on real time system such as dSPACE.
Target group

This project is recommended for students in the 9th or 10th semester with interest in electrical machines and their control. He/She is interested in the advanced observers/estimation algorithm for estimating various signals of drive. The student must have interest in digital signal processing techniques applied to power electronics and drive application. In addition, a basic knowledge of machines/drive, and knowledge of Matlab/Simulink background and laboratory aptitudes are required.



In collaboration with

Danfoss

Download Materials

Search in postings
Contact

Company / Organization

DTU Elektro

Name

Nenad Mijatovic

Position

Lektor

Mail

nm@elektro.dtu.dk

Supervisor info

Electrical Power Engineering

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

Elektro

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

Sustainable Energy

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

MSc in Computer Science and Engineering

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

MSc in Electrical Engineering

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

MSc in Engineering, Mechanical Engineering

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

MSc in Engineering, Photonics Engineering

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

MSc in Sustainable Energy

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

MSc in Wind Energy

Supervisor

Nenad Mijatovic

ECTS credits

5 - 30

Type

BSc project, MSc thesis, Special course

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

Find us here

Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby

Denmark



Tlf. (+45) 45 25 25 25

CVR-nr. 30 06 09 46

All vacant positions
 

loading..