Investigation of a Transistor Clamped T-Type Multilevel H-Bridge Inverter with Inverted Double Reference Single Carrier PWM Technique for Renewable Energy Applications

Mahajan Sagar Bhaskar, Dhafer Almakhles, Sanjeevikumar Padmanaban, Dan M. Ionel, Frede Blaabjerg, Jiangbiao He, A. Rakesh Kumar

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The Multilevel inverters (MLIs) are a new breed of power electronics converters. They are primarily used for the conversion of dc power to ac power. The two-level inverters are conventionally used to obtain ac power, but it requires operating the switches under very high switching frequency. Besides, the two-level inverter necessitates the use of LC filters with the switches operating under high dv/dt stress. The MLIs offer the advantage of utilizing several dc voltage sources to generate a stepped ac waveform with the proper arrangement of switches. Investigation of a Transistor Clamped T Type H-Bridge Multilevel Inverter (TC-TT-HB-MLI) with Inverted Double Reference Single Carrier PWM Technique (IDRSCPWM) for Renewable Energy Applications are discussed in this paper. A PV source is taken as an input to the TC-TT-HB-MLI. For different modulation indices like 0.85, 1 and 1.25, the FFT analysis is performed and presented, which corresponds to the variations in the irradiations from solar energy. A single unit of the TC-TT-HB-MLI is extended to a generalized MLI structure named Generalized Transistor Clamped T-Type H-Bridge Multilevel Inverter (GTC-TT-HB-MLI). The significant benefits of GTC-TT-HB-MLI are the multiple numbers of reductions in the switch count, and driver circuit counts for a higher number of MLI levels. Fast Fourier Transform (FFT) analysis is carried out on the MLI output to calculate the total harmonics distortion (THD). The experimental verification is performed using SPARTAN 3E-XCS250E; the gate signals are generated and provided to the switches.

Original languageEnglish
Article number9181541
Pages (from-to)161787-161804
Number of pages18
JournalIEEE Access
Volume8
DOIs
StatePublished - 2020

Bibliographical note

Funding Information:
This work was supported by the Renewable Energy Lab (REL), College of Engineering, Prince Sultan University, Riyadh, Saudi Arabia.

Publisher Copyright:
© 2013 IEEE.

Keywords

  • Multilevel inverter topology
  • double reference
  • high switching frequency
  • pulse width modulation scheme
  • single carrier
  • total harmonics distortion

ASJC Scopus subject areas

  • Computer Science (all)
  • Materials Science (all)
  • Engineering (all)

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