Abstract
In a 3-level NPC inverter, the power devices and DC-link capacitors are considered the most reliability-critical components, and their wear-out failure is mainly caused by thermal loading due to power loss. It is found in a previous study that the Discontinuous Pulse Width Modulation reduces the power loss of the power devices and improves the reliability of power devices. However, it reduces the reliability of the DC-link capacitor, and thus the reliability of the NPC inverter. This paper proposes a DPWM method to improve the reliability of the NPC inverter by reducing the power losses of both the power devices and DC-link capacitors. The effectiveness of the proposed method is verified through simulations and experiments.
| Original language | English |
|---|---|
| Title of host publication | 2023 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9789075815412 |
| DOIs | |
| State | Published - 2023 |
| Event | 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe - Aalborg, Denmark Duration: 4 Sep 2023 → 8 Sep 2023 |
Publication series
| Name | 2023 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe |
|---|
Conference
| Conference | 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe |
|---|---|
| Country/Territory | Denmark |
| City | Aalborg |
| Period | 4/09/23 → 8/09/23 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- 3-Level NPC
- Lifetime
- Photovoltaic
- Pulse Width Modulation
- Reliability
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