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FPGA baserad PWM-styrning av BLDC-motorer
Linköping University, Department of Electrical Engineering.
2003 (Swedish)Independent thesis Basic level (professional degree)Student thesisAlternative title
FPGA based PWM-control of BLDC motors (English)
Abstract [en]

This thesis work contains a litterature study about electrical motors in general and how PWM-patterns for brushless DC-motors can be made. A suitable method has been implemented as a simulation model in VHDL. A simulation model of a brushless DC-motor which describes the phasecurrents, torque and angular velocity has also been made. The motor model made simulations easier for the complete PWM-system.

The design was synthesised and tested with a prototypeboard including a SPARTAN II FPGA. In order to test the design, a powerstage and a motor was included. The tests showed that the design was working as expected according to the previous simulations.

A study about an alternative way to control a brushless DC-motor has also been made. This alternative is best suited when the generated back-EMK for the motor is sinusoidal. A simulation model for a part of a system like this has been made, and it has been synthesised in order to examine if it is possible to implement using a FPGA availible today.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2003. , 73 p.
LiTH-ISY-Ex, 3341
Keyword [en]
Electronics, PWM, BLDC, electrical-motors, FPGA, VHDL, back-EMF, SVM, motor-control
Keyword [sv]
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-1728OAI: diva2:19053
Available from: 2003-08-15 Created: 2003-08-15

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