Abstract
A new operational mode for diode-clamped multilevel inverters termed quasi two-level operation is proposed. Such operation aims to avoid the imbalance problem of the dc-link capacitors for multilevel inverters with more than three levels and reduces the dc-link capacitance without introducing any significant voltage ripple at the dc-link nodes. The proposed operation can be generalized for any number of levels. The validity of the proposed multilevel inverter operational mode is confirmed by simulations and experiments on a prototype five-level diode-clamped inverter.
| Original language | English |
|---|---|
| Pages (from-to) | 3088-3099 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 55 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 2008 |
Keywords
- multilevel inverter
- neutral point clamped
- capacitors
- invertors
- power semiconductor devices
- semiconductor diodes
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