A Novel PWM Technique to Reduce Common Mode Voltage in Coupled Inductor Multilevel Inverter


  • Sahaj H. Maru Assistant Professor, Dept of Electrical Engineering, SLTIET
  • Denisa S. Gardhariya Assistant Professor, Dept of Electronics & Communication Engineering, SLTIET
  • Urvisha H. Vekariya Lecturer, Dept of Electronics & Communication Engineering, SLTIET


Coupled Inductor Inverter, Common Mode Voltage and PWM Techniques


This work presents multi-carrier interleaved PWM strategies to control common mode voltage in three phase
coupled inductor inverter (CII). The proposed scheme has the advantages of reduced number of switches with higher
output voltage level. The common problem arise in the coupled inductor inverter (CII) is the inductor power losses that
are related to the magnitude of current ripple. The proposed multi-carrier interleaved PWM scheme technique is easily
to implement when compared to other PWM techniques, and also one of the advantage to minimize the inductor current
ripple. The minimization of the current ripple leads to the reduction in the common mode current participation in the (YΔ) connected induction motor. The common mode voltage that is the integration of the common mode current in each
phase. The multi-carrier interleaved consists of the continuous and discontinuous modes of operation. By choosing the
proper high effective winding inductance switching state (DPWM) can reduce the Common mode voltage without
degrading the performance of the inverter. The proposed scheme is applied for three-phase coupled inductor inverter to
obtain the five level output. Mathematical analysis & Simulation studies are verified in Mat lab 2012b.



How to Cite

Sahaj H. Maru, Denisa S. Gardhariya, & Urvisha H. Vekariya. (2016). A Novel PWM Technique to Reduce Common Mode Voltage in Coupled Inductor Multilevel Inverter. International Journal of Advance Research in Engineering, Science & Technology, 3(13), -. Retrieved from http://ijarest.com/index.php/ijarest/article/view/2063