Compact Three Phase Multilevel Inverter for Low and Medium Power Photovoltaic Systems
| Autor: | Shuvangkar Shuvo, Md. Halim Mondol, Shuvra Prokash Biswas, Mehmet Rida Tur, Md. Kamal Hosain, Eklas Hossain |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
General Computer Science
Computer science 020209 energy 02 engineering and technology Power factor law.invention Control theory law 0202 electrical engineering electronic engineering information engineering General Materials Science multilevel inverters Total harmonic distortion business.industry energy storage 020208 electrical & electronic engineering Photovoltaic system General Engineering Power (physics) Renewable energy Pulse width modulation inverters Capacitor Three-phase photovoltaic systems Inverter total harmonic distortion total standing voltage lcsh:Electrical engineering. Electronics. Nuclear engineering business lcsh:TK1-9971 Voltage |
| Zdroj: | IEEE Access, Vol 8, Pp 60824-60837 (2020) |
| ISSN: | 2169-3536 |
| Popis: | A new three phase multilevel inverter with reduced number of components count is proposed in this paper. This inverter is designed using a single DC source per phase to generate multiple level output voltage which makes it suitable for low and medium voltage applications, including ac-coupled renewables or energy storages. A generalized circuit configuration is shown in this paper following which the number of output voltage level can be increased as per expectation. Although, each element endures the voltage stress equivalent to the input DC voltage, the value of total standing voltage (TSV) is reduced by the utilization of minimized number of components with respect to the number of series connected capacitors. Further, staircase modulation scheme is used to generate the switching signals. Hence, the proposed inverter can be operated at low switching frequency with optimal output current harmonic distortion which decreases switching losses and suppresses power factor falling. In order to validate the theoretical explanations and practical performances of the proposed inverter, the hypothesis is simulated for 9, 13 and 39 output voltage level inverters for three phase with a line voltage total harmonic distortion (THD) of 6.06%, 4.16% and 2.10% respectively in MATLAB/Simulink and a 5-level single phase laboratory prototype is implemented in the laboratory. |
| Databáze: | OpenAIRE |
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