Comparison of carrier based PWM methods for cascaded H-Bridge Multilevel Inverter |
Author(s): |
| Hardik Jayeshkumar Padariya , Parul Institute of Engg. & Tech., Vadodara; Chandni Yogeshkumar Joshi, Parul Institute of Technology, Vadodara |
Keywords: |
| (Cascaded H-bridge) CHB, (Level Shifted) LSCPWM, (Phase Shifted) PSCPWM, (Multilevel Inverter) MLI, PWM (Pulse Width Modulation). |
Abstract |
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Multilevel inverters are mainly devised for high power applications, due to higher voltage operating capability, lower dv/dts and more sinusoidal outputs. The Diode Clamped, Flying Capacitor and the Cascaded H-bridge inverter, are the most suitable topologies. The Cascaded H-Bridge, also known as multi-module converter, has been particularly used in very high power applications, due to its modularity and attractive input current harmonics cancellation. Multilevel converters are mainly controlled with sinusoidal PWM technique and it includes two types of multiple carrier arrangements: Level Shifted (LSCPWM) and Phase Shifted (PSCPWM). In this paper comparison between these two modulation techniques is carried out. |
Other Details |
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Paper ID: IJSRDV2I1261 Published in: Volume : 2, Issue : 1 Publication Date: 01/04/2014 Page(s): 566-570 |
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