| Title |
Convenient Thermal Modeling for Loss Distribution method of 3-Level Active NPC Inverter using Newton's Law of cooling |
| Authors |
Seung-Wook Hyun ; Jung-Hyo Lee ; Chung-Yuen Won |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2015.29.9.071 |
| Keywords |
3-Level Inverter ; NPC ; Active NPC ; Thermal Modeling ; Newton’S Law Of Cooling |
| Abstract |
This paper proposes a convenient thermal modeling method for loss distribution control method of 3-level Active NPC(Neutral Point Clamped) inverter. In the drawback of conventional 3-level NPC, the generated losses can occur unbalance in each switching device, as a result, thermal utilization of designed system has been decreased. In order to compensate unbalanced losses, Active NPC inverter performed loss balancing control with thermal modeling during operation of each switching device. Therefore, this paper deals with a convenient thermal modeling method based on newton’s law of cooling rather than conventional thermal modeling method. Both simulation and experimental results based on 10kW 3-level Active NPC inverter confirm the validity of the analysis performed in the study. |