Abstract
This paper presents the detailed modelling and experimental verification of a proposed three-phase Improved Switched Inductor Z-Source Inverter (ISL ZSI). Because of the limitations of classical Z-source inverter, the ISL ZSI has been proposed to increase the conversion voltage gain, to reduce the voltage stress on the capacitor of Z-network and to remove the inrush current. In this paper, a detailed model of the proposed inverter is presented and analyzed. PWM control and relationships of voltage gain and voltage stress versus modulation index are explained. Then, a detailed loss model for the ISL ZSI is derived. Simulation results are obtained to confirm the proposed topology and its loss model. Then, a prototype of 250 W is presented and experimentally tested. A good match is obtained for calculation, simulation and experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 14-27 |
| Number of pages | 14 |
| Journal | EPE Journal (European Power Electronics and Drives Journal) |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
Keywords
- Boost factor
- Loss analysis
- Modelling
- Switched inductor
- Voltage stress
- Z-source inverter