Transistor clamped five level inverter using non-inverting double reference single carrier PWM technique for photovoltaic applications

Bhaskar, M.S. and Padmanaban, Sanjeevikumar and Fedak, V. and Blaabjerg, Frede and Wheeler, Patrick (2016) Transistor clamped five level inverter using non-inverting double reference single carrier PWM technique for photovoltaic applications. In: VIII International Conference Optimization and Applications (OPTIMA-2017), 2-7 October 2017, Petrovac, Montenegro. (In Press)

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Abstract

This treatise deals with transistor clamped five level inverter Using Non-Inverting Double Reference Single Carrier PWM (NIDRSC PWM) Technique. Conventional or two level inverter have drawbacks like i) Requirement of fast switching devices ii) Very high dv/dt iii) High Electromagnetic Interferences (EMI) iv) Bulky filters v) Faster heating of switches and vi) Not suitable for high voltage applications. Multilevel Inverters (MLIs) are engaged to conquer the drawbacks of conventional two levels inverter. MLIs generate an AC voltage using small voltage steps obtained with the help of DC supplies or capacitor banks. To design the proposed five level inverter 5 numbers of power control switches and 8 diodes are required. The proposed inverter circuitry is investigated by using Non-Inverting Double Reference Single Carrier PWM (NIDRSC PWM) Technique in terms of harmonics content in output waveform. Under-modulation (modulation Index =0.85), unity (modulation Index =1) and over-modulation (modulation Index =1.25) PWM signal is obtained to drive control switches. Simulation results will confirm the functionality, design and operation of the proposed MLI and NIDRSC PWM Technique

Item Type: Conference or Workshop Item (Paper)
Keywords: Multilevel Inverter; Photovoltaic; Non-Inverting Double Reference Single Carrier PWM; Total Harmonics Distortion.
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
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Depositing User: Burns, Rebecca
Date Deposited: 24 Aug 2017 11:42
Last Modified: 24 Aug 2017 11:43
URI: http://eprints.nottingham.ac.uk/id/eprint/42375

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