Generalized PWM Technique for Dual Inverter Fed Induction Motor Drive

Autor: M. Surya Kalavathi, B. Ravindranath Reddy, G. Pulla, T. Brahmananda Reddy, M. Harshavardhan Reddy
Rok vydání: 2014
Předmět:
Zdroj: Acta Electrotechnica et Informatica. 14:28-36
ISSN: 1338-3957
1335-8243
Popis: This paper presents a simplified Generalized Pulse Width Modulation (GPWM) algorithm to obtain various continuous and discontinuous PWM algorithms for a four-level inverter topology. The proposed four-level inverter is achieved by feeding the induction motor from both ends by a three-level cascade inverter from one side and by two-level inverter from other side. The proposed inverter configuration is capable to produce an output voltage of two-level, three-level and four-level in entire modulation range. In the proposed inverter topology neutral point fluctuations are absent and neutral clamping diodes are absent. With the application of various discontinuous PWM algorithms to the proposed inverter topology the switching losses are reduced when compared with continuous PWM algorithm. The simulation analyses are carried out in MATLAB/simulink environment and the results are presented.
Databáze: OpenAIRE