DC-Link Quasi-Switched Boost Inverter With Improved PWM Strategy and its Comparative Evaluation
| Autor: | Geoffrey R. Walker, Truong-Duy Duong, Joon-Ho Choi, Minh-Khai Nguyen, D. Mahinda Vilathgamuwa, Young-Cheol Lim |
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| Rok vydání: | 2020 |
| Předmět: |
Total harmonic distortion
General Computer Science Computer science 020209 energy 020208 electrical & electronic engineering Ripple General Engineering DC-linked type 02 engineering and technology Inductor shoot-through two-stage inverter 0202 electrical engineering electronic engineering information engineering Electronic engineering Inverter General Materials Science lcsh:Electrical engineering. Electronics. Nuclear engineering Quasi-switched boost inverter quasi-Z-source inverter lcsh:TK1-9971 Electrical impedance Low voltage Pulse-width modulation Network analysis Voltage |
| Zdroj: | IEEE Access, Vol 8, Pp 53857-53867 (2020) |
| ISSN: | 2169-3536 |
| DOI: | 10.1109/access.2020.2981126 |
| Popis: | Low voltage stress on the impedance source network devices is the main reason for the advent of DC-linked type quasi-switched boost inverters (DqSBIs). However, the DqSBI has become less attractive due to its low voltage gain. This paper presents a novel PWM control strategy for the DqSBI and its comparative performance evaluation to the conventional inverters. The modified PWM control strategy based DqSBI improves the voltage gain and reduces the conduction loss and the inductor current ripple. Circuit analysis and comparison study between the DqSBI, the quasi-Z-source inverters, and the two-stage inverter with a boost DC-DC converter are presented. 1-kVA three-phase inverter prototypes were set up to compare and evaluate the performance of the DqSBI with the improved PWM method for voltage gains of 0.85 to 1.6. The measured efficiency and total harmonic distortion (THD) values are also presented. |
| Databáze: | OpenAIRE |
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