Title: Control strategy for single phase cascaded nine-level inverter with sinusoidal pulse width modulation using LPC 1769 ARM cortex-M3 microcontroller

Authors: K. Biju; Rijil Ramchand

Addresses: College of Engineering Munnar, Kerala, 685612, India ' National Institute of Technology, Calicut, 673601, India

Abstract: Multilevel inverter is used to synthesise the output voltage waveform from several levels of input voltage. A number of pulse width modulation techniques are suggested in the literature for controlling the output voltage and minimising harmonics of the multilevel inverter. A number of methods have been suggested in the literature for the digital implementation of the pulse width modulation techniques. This paper proposes a new method for the implementation of a single phase cascaded nine-level inverter with multicarrier based level shifted sinusoidal pulse width modulation technique using a low power advanced microcontroller. The simulation of single phase cascaded nine-level inverter is done with multicarrier level shifted sine PWM technique using MATLAB SIMULINK. Hardware implementation is done for the multicarrier level shifted sine PWM single phase nine level inverter using LPC 1769 ARM Cortex-M3 microcontroller. The results of both simulation and hardware implementation are analysed.

Keywords: multilevel inverter; sinusoidal PWM; level shifted sine PWM; cascaded H-bridge inverter; harmonics.

DOI: 10.1504/IJPELEC.2018.095081

International Journal of Power Electronics, 2018 Vol.9 No.4, pp.349 - 365

Available online: 29 Jun 2018 *

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