Change search
ReferencesLink to record
Permanent link

Direct link
Development of a Class D motor amplifier for a next-generation mechanism control electronics
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This thesis was written at Airbus DS GmbH in Friedrichshafen, Germany, as part of a project which aims to develop a new generation of class-D power amplification circuits for sinusoidal commutating motors controlling the movement of different mechanisms in satellites. Currently used topologies have disadvantages such as high power loss, analog controlling and high degree of signal distortion.

This work first simulates available topologies which were previously developed by the company in order to compare them and build a trade-off list so the most suitable circuit is selected. Then, by further simulating and analysis several improvements to the circuit are suggested and a final schematic is developed including an analogue-to-digital converter and a total of three phases to power a motor. After a demonstrator circuit was designed and built, it was tested by using an external real time target machine to generate the corresponding PWM signals in correspondence to a controlling signal generated via Simulink.

The final product of this thesis confirmed the simulation results such as an improved signal quality at higher frequencies in comparison to an available measurement from a previous generation circuit. The flexibility of the topology as well as the possibility of implementing a digital control was also confirmed during this phase of the project. Upon further work, the dimensioning of the output low pass filter should be improved and a digital PID controller should be implemented in the controlling FPGA.

NOTE: This version of the Master Thesis deviates from the formal original  submitted for examination in order not to disclose confidential information of Airbus DS GmbH. All positions in the document, where additional information was removed are properly identified. This document can be published according to the general rules of the Julius-Maximilians-Universität Würzburg and the Lulea University of Technology.

Place, publisher, year, edition, pages
2016. , 89 p.
Keyword [en]
Power, electronics, satellites, BLDC, sinusoidal, commutation, control, PID, class D amplifier, PWM
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-60411OAI: oai:DiVA.org:ltu-60411DiVA: diva2:1046702
External cooperation
Airbus DS GmbH, Friedrichshafen, Germany
Educational program
Space Engineering, master's level
Presentation
(English)
Supervisors
Examiners
Note

This version of the Master Thesis deviates from the formal original  submitted for examination in order not to disclose confidential information of Airbus DS GmbH. All positions in the document, where additional information was removed are properly identified. This document can be published according to the general rules of the Julius-Maximilians-Universität Würzburg and the Lulea University of Technology.

Available from: 2016-11-15 Created: 2016-11-14 Last updated: 2016-11-15Bibliographically approved

Open Access in DiVA

fulltext(3436 kB)14 downloads
File information
File name FULLTEXT02.pdfFile size 3436 kBChecksum SHA-512
2e60193444c6ca8cc11003efb4634872e9a0be6d1251317b87ef1bfede6e29665c8fc5f1b668dcd93c69b4fc4def79ff64855f5ea9bcdb95ec64658da2fcfc8a
Type fulltextMimetype application/pdf

By organisation
Space Technology
Other Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 14 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 20 hits
ReferencesLink to record
Permanent link

Direct link