Preprint Article Version 1 This version not peer reviewed

Transistor Clamped H-Bridge Five-Level Multilevel Inverter for Photovoltaic Application – A Hardware Prototype Implementation Using Inverted Double Reference Single Carrier PWM Technique

Version 1 : Received: 17 June 2017 / Approved: 19 June 2017 / Online: 19 June 2017 (16:06:11 CEST)

How to cite: Bhaskar, M.S.; Padmanaban, S.; Blaabjerg, F.; Mohammed, A. Transistor Clamped H-Bridge Five-Level Multilevel Inverter for Photovoltaic Application – A Hardware Prototype Implementation Using Inverted Double Reference Single Carrier PWM Technique. Preprints 2017, 2017060087 (doi: 10.20944/preprints201706.0087.v1). Bhaskar, M.S.; Padmanaban, S.; Blaabjerg, F.; Mohammed, A. Transistor Clamped H-Bridge Five-Level Multilevel Inverter for Photovoltaic Application – A Hardware Prototype Implementation Using Inverted Double Reference Single Carrier PWM Technique. Preprints 2017, 2017060087 (doi: 10.20944/preprints201706.0087.v1).

Abstract

Inverters are Power Electronic System (PES) and proficient to converting Direct Currents (DC) into Alternating Currents (AC). Conventional two-level inverter has drawbacks like high Total Harmonic Distortions (THD), high voltage across power switch, high dv/dt of output voltage and electromagnetic interferences. Multilevel Inverters (MLIs) are employed to overcome the drawbacks of conventional two-level inverter. Multilevel Inverters generate an AC voltage using small voltage steps obtained with the help of DC supplies or capacitor banks. This paper deals with the implementation of a Transistor Clamped H-Bridge Multilevel Inverter (TCHB-MLI) using Inverted Double Reference Single Carrier Pulse Width Modulation (IDRSCPWM) technique for photovoltaic application. The proposed TCHB-MLI requires less number of power switches and drivers to achieve maximum number of output level. The analysis of the multilevel inverter output is done in terms of its harmonic spectrum, output voltage and output current for modulation indices 0.85, 1 and 1.25. The control signals for the power switches of the proposed TCHB-MLI are developed by using SPARTAN 3E-XCS250E trainer kit. Experimental results will verify the functionality, design of the proposed TCHB-MLI and IDRSCPWM Technique.

Subject Areas

Multilevel Inverter; Cascaded H-Bridge; Inverted Double Reference Single Carrier PWM; Transistor Clamped H-Bridge (TCHB), Total Harmonic Distortions (THD); FPGA

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