We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Multilevel Cascaded Inverters having Improved Output Level with Reduced Power Switches - A Novel Approach.
- Authors
Bisoyi, Sanjiba Kumar; Terang, Parveen P.; V., Sampath Kumar; A. N., Veerendra Kumar
- Abstract
Off late, multilevel inverter (MLI) technology has emerged significantly in medium voltage applications especially those requiring high power. This has proved to be an important option for domestic and industrial applications. Multilevel inverters having many voltage levels could generate improved voltage waveforms for these applications. The main disadvantage of any topology of MLI is the requirement of power supplies of a large number as well as semiconductor components to get the desired multistep output voltage waveforms. This paper has attempted to focus on diminishing the number of power supplies and reducing the semiconductors for a certain number of output levels. A new scheme is proposed to get an increased number of levels for an output voltage with a decrease in the number of switches, components and gate driver circuits. Using this proposed method, the size as well as the power consumption in the gate driver circuits has been reduced to a great extent. The proposed methodology discussed in this paper, presents an 81-level Hybrid Multilevel Inverter for applications suitable to medium and high voltage and this design works by optimizing the number of power switches for a given output level. The results have been presented, highlighting the obtained output waveform seen to be nearly sinusoidal. With an output close to a sinusoid, the benefits of reduced losses are observed in terms of significantly good power quality or low total harmonic distortion (THD) as compared to other conventional topologies. The benefits of the proposed circuit configuration is its simplicity and ease of control. The working principle and output waveforms obtained have been analyzed and presented using MATLAB/Simulink.
- Subjects
HARMONIC distortion (Physics); POWER resources; LINE drivers (Integrated circuits); HIGH voltages; VOLTAGE; IDEAL sources (Electric circuits)
- Publication
Grenze International Journal of Engineering & Technology (GIJET), 2022, Vol 8, Issue 1, p542
- ISSN
2395-5287
- Publication type
Article