PWM Control Scheme For Quasi-Switched-Boost Inverter to Improve Modulation Index
| Autor: | Youn-Ok Choi, Minh-Khai Nguyen |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Engineering
business.industry 020208 electrical & electronic engineering Modulation index 020206 networking & telecommunications 02 engineering and technology Inductor law.invention Capacitor Control theory law Modulation Control system 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering business Pulse-width modulation Network analysis Voltage |
| Zdroj: | IEEE Transactions on Power Electronics. 33:4037-4044 |
| ISSN: | 1941-0107 0885-8993 |
| DOI: | 10.1109/tpel.2017.2717487 |
| Popis: | The simple boost control (SBC) method is usually used to control the shoot-through state in a single-phase single-stage quasi-switched boost inverter (qSBI). This paper proposes a new pulse-width modulation (PWM) control scheme to improve the modulation index for the qSBI. The advantages of the proposed method for the qSBI over the conventional SBC method are as follows: 1) the modulation index is larger; 2) the voltage stress on the capacitor, diodes, and switches is reduced significantly; 3) the high-frequency peak-to-peak inductor current and capacitor voltage ripples are smaller; 4) the shoot-through current is lower; and 5) the efficiency is higher. The operating principles and circuit analysis for the proposed PWM control scheme are shown. To verify the performance of the proposed PWM control method, a 400W prototype was built with a 110 V/50 Hz output voltage. The experimental results matched those of the theoretical analysis. |
| Databáze: | OpenAIRE |
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