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Bộ nghịch lưu ba bậc hình T tăng áp dựa trên chuyển mạch LC A Three Level T-type Inverter Voltage Boost Based on LC-Switching

In this paper, a three level T-type inverter topology based on Voltage Quasi-Switched Boost (3L T Type qSBIs) is presented. The proposed inverter not only inherits the advantages of traditional Quasi-SBIs (qSBIs) inverters but also has the unique features: such as use of less number of high power passive reactive elements in the intermediate network as well as isolated DC power supply which increases the system size. On the other hand, It
is able to provide both voltage buck and boost and give required three phase three level AC output voltage in a single stage, the T type employs an active bi-directional switch to the dc-link voltage midpoint and gets along with two diodes less per bridge leg. It is an alternative to more complex three-level topologies such as active neutral point clamped converters. A prototype based on a TMS320F28335 digital signal processor is built to verify the operating principle of the proposed 3L T Type qSBIs.

Từ khóa: Quasi-Switched Boost inverter, T type, shoot-through, Z-source inverter, Three phase inverter.

19 p ovanke 23/04/2019 469 2

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