A Generalized Multilevel Inverter Based on T-Type Switched Capacitor Module with Reduced Devices
| Autor: | Gen Li, Chen Tianjin, Jun Liang, Yuan Yisen, Kewen Wang, Yaoqiang Wang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Control and Optimization
multilevel inverter Computer science Energy Engineering and Power Technology 02 engineering and technology lcsh:Technology law.invention expansion law Hardware_GENERAL Multilevel inverter inverter module 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Engineering (miscellaneous) lcsh:T Renewable Energy Sustainability and the Environment business.industry 020208 electrical & electronic engineering Electrical engineering Switched capacitor switched capacitor Capacitor Photovoltaic power generation Inverter business Energy (miscellaneous) Voltage |
| Zdroj: | Energies; Volume 13; Issue 17; Pages: 4406 Energies, Vol 13, Iss 4406, p 4406 (2020) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en13174406 |
| Popis: | Conventional multilevel inverters have problems in terms of their complicated expansion and large number of devices. This paper proposes a modular expanded multilevel inverter, which can effectively simplify the expansion and reduce the number of devices. The proposed inverter can ensure the voltage balancing of the voltage-dividing capacitors. The cascading of the T-type switched capacitor module and the step-by-step charging method of the switched capacitors enable the inverter to achieve high output voltage levels and voltage gain. In addition, the inversion can be achieved without the H-bridge, which greatly reduces the total standing voltage of the switches. The nine-level inverter of the proposed topology can be realized with only ten switches, obtaining a voltage gain that is two times larger. The above merits were validated through theoretical analysis and experiments. The proposed inverter has good application prospects in medium- and low-voltage photovoltaic power generation. |
| Databáze: | OpenAIRE |
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