A simplified structure for three‐phase 4‐level inverter employing fundamental frequency switching technique
| Autor: | Saad Mekhilef, Ammar Masaoud, Kiing Ing Wong, Hew Wooi Ping |
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| Rok vydání: | 2017 |
| Předmět: |
Computer science
020209 energy 020208 electrical & electronic engineering Topology (electrical circuits) 02 engineering and technology Fundamental frequency Power (physics) Three-phase Control theory Modulation 0202 electrical engineering electronic engineering information engineering Waveform Inverter Electrical and Electronic Engineering Voltage |
| Zdroj: | IET Power Electronics. 10:1870-1877 |
| ISSN: | 1755-4543 |
| DOI: | 10.1049/iet-pel.2017.0123 |
| Popis: | This study describes the design and control of simplified structure of three-phase 4-level inverter. A 4-level dc-link derived from three symmetrical dc voltage supplies and two controlled switches is connected to a three-phase 3-level neutral point clamped (3-level NPC) bridge inverter. By employing the fundamental frequency switching technique, the simplified 4-level inverter can have two distinct modes of operation: 4-level and 2-level. Compared to the well-known three-phase 4-level NPC inverter, the proposed inverter topology comes with series of features including a minimum number of power components, high quality voltage waveform, lower losses and higher efficiency. To ensure the feasibility of the proposed topology with its suggested modulation technique, the prototype of the proposed 4-level inverter is built and the experimental results are given. |
| Databáze: | OpenAIRE |
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