Design and Simulation of Five Levels Active Neutralpoint Clamped Inverter

P. Hema; N. Seebha Sri; A. Sakthivel; M. Kaliamoorthy

Authors

P. Hema Department of Electrical and Electronics Engineering, Dr.Mahalingam College of Engineering and Technology, Pollachi, Tamil Nadu, India.
N. Seebha Sri Department of Electrical and Electronics Engineering, Dr.Mahalingam College of Engineering and Technology, Pollachi, Tamil Nadu, India.
A. Sakthivel Department of Electrical and Electronics Engineering, Dr.Mahalingam College of Engineering and Technology, Pollachi, Tamil Nadu, India
M. Kaliamoorthy Department of Electrical and Electronics Engineering, Dr.Mahalingam College of Engineering and Technology, Pollachi, Tamil Nadu, India

Keywords:

Multi-Level Inverter (MLI), Active-Neutral-Point Clamped (ANPC) inverter, Flying-Capacitor, Total Harmonic Distortion (THD)

Abstract

Multi-Level Inverters (MLI) are receiving more attentions nowadays as one of the preferred solutions for medium and high power applications. The Five-Level Active-Neutral-Point-Clamped inverter (5LANPC) combines the features of the conventional Flying-Capacitor (FC) type and Neutral-PointClamped (NPC) type inverterand is commercially used for industrial applications. The inverter configurations of Eight Switch Five Level Active Neutral Point Clamped (8S-5L-ANPC) inverter and Seven Switch Five Level Active Neutral Point Clamped (7S-5L-ANPC) inverter are discussed. The modulation strategy for 8S-5L-ANPC inverter is investigated and the results are presented. It is found that Total Harmonic Distortion (THD) of output voltage of 8S-5L-ANPC becomes 28.87%.