Conference paper
A medium voltage CHB Inverter with a modified THPWM for Step-Up-Transformer-Less and Line-Filter-Less Grid Integration
2021 31st Australasian Universities Power Engineering Conference (AUPEC)
31st Australasian Universities Power Engineering Conference (AUPEC) 2021 (Perth, WA, 26/09/2021–30/09/2021)
2021
Abstract
A simple traditional inverter which generates a square wave is not satisfactory for grid integration. A pure sinusoidal wave is highly desired for grid tied inverter. Multilevel inverter (MLI) has emerged a key technological development in the field of energy control for high-power medium-voltage (6–36 kV) by generating sinusoidal output waveform without using large and bulky line filter. The cascaded H-bridge (CHB) inverters produce more output voltage levels (e.g., more sinusoidal) in the medium-voltage range, hence minimize the harmonic components. In this paper, a fifty-five level (55L) CHB converter is designed, simulated, and analyzed for 11kV system using a new modified third harmonic injected pulse width modulation-based (MTHPWM) switching technique. Performance of existing switching techniques and proposed switching technique with a 55L, 3- ϕ , 11kV CHB inverter is evaluated in terms of total harmonic distortion (THD) and inverter loss. The proposed modulation scheme results very promising THD profile (3.41%) and reduces switching losses over other conventional modulation techniques. All the simulated results are carried out in the MATLAB/Simulink environment.
Details
- Title
- A medium voltage CHB Inverter with a modified THPWM for Step-Up-Transformer-Less and Line-Filter-Less Grid Integration
- Authors/Creators
- S.P. Biswas (Author/Creator) - Rajshahi University of Engineering & TechnologyMd.R. Islam (Author/Creator) - University of WollongongMd.S. Anower (Author/Creator) - Rajshahi University of Engineering & TechnologyM.M. Rahman (Author/Creator) - Ingeteam (Spain)A. Arefi (Author/Creator) - Murdoch University
- Publication Details
- 2021 31st Australasian Universities Power Engineering Conference (AUPEC)
- Conference
- 31st Australasian Universities Power Engineering Conference (AUPEC) 2021 (Perth, WA, 26/09/2021–30/09/2021)
- Identifiers
- 991005544349307891
- Murdoch Affiliation
- School of Engineering and Energy
- Language
- English
- Resource Type
- Conference paper
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