Optimal Low Switching Frequency Pulse Width Modulation of Fifteen-Level Hybrid Inverter |
Author(s): |
| B. Ramraj , NANDHA ENGINEERING COLLEGE; M. Bharathi Mohan, NANDHA ENGINEERING COLLEGE; K. Dinesh, NANDHA ENGINEERING COLLEGE; M. Gowtham, NANDHA ENGINEERING COLLEGE; T. Jayaprakash, NANDHA ENGINEERING COLLEGE |
Keywords: |
| Hybrid Inverter, THD, MATLAB |
Abstract |
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The objective of this paper is to operate of an induction motor drive at an average device switching frequency limited to rated fundamental frequency by using a fifteen-level Hybrid inverter. To reduce the number of separate dc sources, a three-level transistor clamped inverter was used as a cell in the fifteen-level hybrid inverter. The switching angles for each semiconductor switch are then obtained from optimal fifteen-level waveforms based on the criteria to minimize the switching frequency as well as unbalance in dc-link capacitor voltages. Simulation results obtained from the 1.5-kW induction motor drive show THD < 5% for stator currents. Simulation of Hybrid multilevel inverter of single phase 15-level Transistor clamped multilevel inverter is presented and the output waveforms were observed using MATLAB. |
Other Details |
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Paper ID: IJSRDV5I20375 Published in: Volume : 5, Issue : 2 Publication Date: 01/05/2017 Page(s): 231-235 |
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