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Neutral-point voltage dynamic model of three-level NPC inverter for reactive load
- Source :
- IECON, Recercat. Dipósit de la Recerca de Catalunya, instname, UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC), Maheshwari, R K, Munk-Nielsen, S & Busquets-Monge, S 2012, Neutral-point voltage dynamic model of three-level NPC inverter for reactive load . in 38th Annual Conference on IEEE Industrial Electronics Society, IECON . IEEE Press, Montreal, QC, Proceedings of the Annual Conference of the IEEE Industrial Electronics Society, pp. 585-589, the 38th Annual Conference of the IEEE Industrial Electronics Society, IECON 2012, Montreal, Canada, 25/10/2012 . https://doi.org/10.1109/IECON.2012.6388762
- Publication Year :
- 2012
- Publisher :
- IEEE, 2012.
-
Abstract
- A three-level neutral-point-c1amped inverter needs a controller for the neutral-point voltage. Typically, the controller design is based on a dynamic model. The dynamic model of the neutral-point voltage depends on the pulse width modulation technique used for the inverter. A pulse width modulation strategy which allows modeling the neutral-point voltage as a first-order continuous function is proposed in this paper. The new model shows that the neutral-point current is proportional to the reactive power drawn from the inverter. Since the model is a first-order model, a simple proportional controller is used in this paper to control the neutral-point voltage. Experimental results verifying the proposed modulation strategy and the controller are also presented in this paper.
Details
- Database :
- OpenAIRE
- Journal :
- IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society
- Accession number :
- edsair.doi.dedup.....9d088d43479efeef5686bf8a4f7ae29b
- Full Text :
- https://doi.org/10.1109/iecon.2012.6388762