Performance analysis and design optimisation of 3-⌀ Packed U Cell inverter for industrial drive applications. (29th April 2019)

• Record Type: Journal Article
• Authors: Narasipuram, Rajanand Patnaik; Yadlapalli, Ravindranath Tagore
• Is Part Of: International journal of mathematical modelling and numerical optimisation. Volume 9:Number 3(2019)
• Page Start: 309
• Page End: 337
• Publication Date: 2019-04-29
• Subjects: torque ripples -- Packed U Cell -- PUC -- total harmonic distortion -- THD -- load torque -- TL -- multi-level inverter -- MLI -- neutral-point clamping -- NPC -- flying capacitor -- FC -- cascaded H-bridge -- CHB -- hybrid cascaded H-bridge -- HCHB -- induction motor -- IM; Mathematical models -- Periodicals; Mathematical optimization -- Periodicals; 519.605
• Languages: English
• ISSNs: 2040-3607

Abstract

Nowadays, the importance for multilevel inverters is getting more and more in the field of medium and high power applications. This paper discusses Packed U Cell (PUC) multilevel inverter which is the most advanced topology. The figure of merit of this topology is reduction in the number of switches as level increases. Hence, it reduces the cost implementation besides topology complexity compared to other existing topologies such as neutral-point clamping (NPC), flying capacitor (FC), cascaded H-bridge (CHB) and hybrid cascaded H-bridge (HCHB). Furthermore, there is no need of transformers in this whole concept. Hence, it avoids the bulky installations. The 3-⌀ induction motor is fed with 7, 15 and 31 levels Packed U Cell (PUC) inverter topologies individually. The stator current, speed response and electromagnetic torque is shown for each level. The performance of induction motor is analysed in terms of % torque ripples and % total harmonic distortion (%THD). The whole simulations are carried out by using MATLAB/Simulink version R2012b.