Four phase switch-mode inverter
| dc.contributor.author | Berntsson, Kristoffer | |
| dc.contributor.department | Chalmers tekniska högskola / Institutionen för energi och miljö | sv |
| dc.contributor.department | Chalmers University of Technology / Department of Energy and Environment | en |
| dc.date.accessioned | 2019-07-03T12:28:40Z | |
| dc.date.available | 2019-07-03T12:28:40Z | |
| dc.date.issued | 2010 | |
| dc.description.abstract | In this project a four phase switch-mode DC/AC inverter was designed, built and evaluated. From Etteplantech and Chalmers University of Technology a common need for a well behaving and versatile inverter in the medium power range was found. The final product was targeted to be able to deliver up to 7 kW of power, with an input DC voltage of 600 V. The finished product managed to operate a 4 kW induction machine to its limits, with a maximum tested switching frequency of 18 kHz. This must be seen as a success. A larger strain on the inverter was not done due to lack of a larger machine, but individually the 600 V supply voltage and the 10 A per phase output current was tested successfully. The resulting inverter is very versatile; with the right control system it’s capable of operating any electrical machine. The input control logic can handle both 3.3 and 5 V signals, while the input DC voltage can be in the 25 to 600 V range. Basic simulations done during the project shows that an RC-snubber would be able to lower the EMI by lowering the dv/dt during switching, while introducing extra losses in the snubber circuit without lowering the losses in the IGBTs, only moving them from turn-off to turn-on. In the finished hardware, the snubber circuit was therefore only prepared for, not implemented. | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12380/131783 | |
| dc.language.iso | eng | |
| dc.setspec.uppsok | LifeEarthScience | |
| dc.subject | Elkraftteknik | |
| dc.subject | Electric power engineering | |
| dc.title | Four phase switch-mode inverter | |
| dc.type.degree | Examensarbete för masterexamen | sv |
| dc.type.degree | Master Thesis | en |
| dc.type.uppsok | H |