1. Dual-T-Type Seven-Level Boost Active-Neutral-Point-Clamped Inverter.
- Author
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Lee, Sze Sing and Lee, Kyo-Beum
- Subjects
- *
PULSE width modulation transformers , *HIGH voltages , *CAPACITORS , *TOPOLOGY , *ELECTRIC potential - Abstract
The conventional three-level active-neutral-point-clamped (ANPC) inverter requires high dc-link voltage at least twice the peak of ac output. To reduce the dc-link voltage, a recent topology that enhanced the voltage gain from half to unity has been presented. In this letter, an alternative ANPC topology is established by using two T-type inverters. Two floating capacitors with self-voltage balancing capability are integrated to achieve a voltage-boosting gain of 1.5. In addition, the proposed topology is capable of generating seven voltage levels. Its operation is validated through circuit analysis followed by experimental results of a prototype. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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