A to Z of Multilevel Inverters
Prof. Shravani Mathur, Secretary, IEEE IES Madhya Pradesh Section Chapter & Ambassador, IEEE Women-in-IES 2024-25, will introduce the speaker Dr. Albert Alexander, Professor, Vellore Institute of Technology, IEEE Madras Section. Here is the abstract of the talk.
Key Aspects of Multilevel Inverters
Core Concept: Unlike traditional 2-level inverters, MLIs create a staircase waveform, which approximates a sine wave more closely, reducing filtering requirements.
Main Topologies:
Diode-Clamped (Neutral Point Clamped - NPC): Uses clamping diodes to limit switch voltage stress.
Flying Capacitor (FC): Uses capacitors to clamp switch voltage.
Cascaded H-Bridge (CHB): Connects multiple H-bridges in series for higher voltage levels.
Advantages: Lower THD, reduced electromagnetic interference (EMI), higher power quality, and ability to operate at higher voltages.
Applications: Medium-voltage motor drives, renewable energy integration (solar/wind), HVDC transmission, and electric vehicle drives.
Control Strategies: Frequently use PWM (Pulse Width Modulation) techniques to manage switching
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- Starts 31 March 2026 06:30 PM UTC
- Ends 10 April 2026 06:30 PM UTC
- No Admission Charge
Speakers
Dr. Albert S Alexander
Biography:
Dr.S. Albert Alexander is the recipient of prestigious Raman Research Fellowship from the University Grants Commission (Government of India). He is a Postdoctoral Research Fellow from Northeastern University, Boston, Massachusetts, USA. His current research focuses on fault diagnostic systems for solar energy conversion systems and smart grids. He has 18 years of academic and research experience. He has published 117 technical papers in International and National journals (including IEEE Transactions, IET, Elsevier, Taylor & Francis, Springer, Wiley etc.,) and presented 84 papers at national and international conferences.
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