Symmetrically Modified Laddered H-Bridge Multilevel Inverter with Reduced Configurational Parameters
Shyam D1, Premkumar K2, Thamizhselvan T3, Nazar Ali A4 Vishnu Priya M5
1Shyam D, Department of EEE, Realtime Adaptive Control Engineering Laboratory, Rajalakshmi Engineering College, Chennai, India.
2Premkumar K, Department of EEE, Realtime Adaptive Control Engineering Laboratory, Rajalakshmi Engineering College, Chennai, India.
3Thamizhselvan T, Department of EEE, Rajalakshmi Engineering College, Chennai, India.
4Nazar Ali A, Department of EEE, Rajalakshmi Engineering College, Chennai, India.
5Vishnu Priya M, Department of ECE, Saveetha School of Engineering, Chennai, India.
Manuscript received on September 23, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 5525-5532 | Volume-9 Issue-1, October 2019 | Retrieval Number: A2074109119/2019©BEIESP | DOI: 10.35940/ijeat.A2074.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Multilevel Inverters are incorporated in this modern world for medium and high-level applications for its adaptability to improve power quality problems. Its necessity is growing big in developing newer techniques and topologies for efficient implementation of DC to AC conversion system. Developing the MLI using less active switching components, less switching losses on active devices and improvement of number of voltage levels is always a tough task. A step forward to solve this problem is to modify the existing H-bridge multilevel inverter to produce Symmetrically Modified Laddered H-Bridge Multi-level Inverter (SMLHB -MLI). Comparative analysis has been carried out with other reputed existing MLI topologies to find out the performance and reduces complexity problem in inverter based on reduced switching methods in inverter side, reduction of active switching components and power diodes.
Keywords: Multilevel inverter (MLI), Pulse Width Modulation (PWM), Symmetrically Modified Laddered H-Bridge (SMLHB), Neutral Point Clamped (NPC), Total Harmonic Distortion (THD).