Space Vector Modulation Strategy for Three-Level Quasi-Switched Boost T-Type Inverter
| Autor: | Duc-Tri Do, Thanh-Hai Quach, Cong-Bang Le, Geum-Bae Cho, Kyoung-Won Lee, Minh-Khai Nguyen, Vinh-Thanh Tran |
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| Rok vydání: | 2018 |
| Předmět: |
Computer science
020208 electrical & electronic engineering Ripple Modulation index 020206 networking & telecommunications 02 engineering and technology Inductor Duty cycle Control theory 0202 electrical engineering electronic engineering information engineering Inverter Pulse-width modulation Space vector modulation Voltage |
| Zdroj: | 2018 IEEE 4th Southern Power Electronics Conference (SPEC). |
| DOI: | 10.1109/spec.2018.8636025 |
| Popis: | In this paper, a space vector pulse width modulation (SVPWM) strategy for the three-level quasi-switched boost T-type inverter (TL-qSBI) is presented. Under the SVPWM control method, the inductor current ripple of the TL-qSBI is reduced. In the proposed SVPWM technique, the shoot-through duty cycle is maintained constant to keep the modulation index as high as possible. Then, the only control parameters of the TL-qSBI are the duty cycles of the two additional switches. By controlling the duty cycles of the two additional switches, the voltage gain of the qSBT 2 I can be improved to a value larger than that of the conventional three-level impedance source inverters. The steady-state analysis and operating principles are presented. Simulation results validate the theoretical analysis. |
| Databáze: | OpenAIRE |
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