ENHANCE IMPEADACE SOURCE NETWORK FOR SINGLE PHASE FIVE-LEVEL DUAL BOOST T-CELL INVERTER

Tóm tắt

The use of mid-point-clamped multilevel inverters, such as active neutral point-clamped or stacked multicell converters, has risen significantly in recent years. This expansion can be attributed to significant voltage gains, major decreases in common-mode voltage and leakage current, enhanced bidirectional power flow capacity. However, there is a problem with the maximum AC output voltage is just half of the dc-link voltage. In order to overcome this constraint and properly handle low also widely variable input voltages, an additional front-end boost circuit must be integrated. In the present study, a single phase five-level Dual boost T-Cell inverter that may equal the peak amplitude of the grid voltage even when the dc-link voltage is low and varies considerably is explored. This paper proposes an enhance impedance source network (switch boost network) to improve the DC-link from a low-amplitude input source, allowing dynamic voltage gain also increased them. To control the proposed topology, the 1800 carrier phase shift algorithm (PS) with two carriers for a five-level topology will be used. Both the analysis and results of simulation will be illustrated as proof of the accuracy of this proposed