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GA-based optimization of total harmonic current distortion and suppression of chosen harmonics in induction motors

Sayyah, A ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1109/SPEEDAM.2006.1649979
  3. Publisher: 2006
  4. Abstract:
  5. In this study, a genetic algorithm optimization technique is applied, to minimize the total harmonic current distortion (THCD) in induction motors fed by high power inverters, based on an approximate model. That is, having defined a desired fundamental output voltage, optimal pulse patterns (switching angles) are determined to produce the fundamental output voltage while minimizing the THCD. The complete results for two cases of 3 and 5 switching instants in the first quarter period of PWM waveform are presented. In the sequel, considering that the torque pulsation is mainly affected by the presence of low-order harmonics, the fifth, seventh, 11th, and 13th order harmonics (in the case of 5 switching angles) are limited at some pre specified values, to have the THCD optimized and the output voltage regulated concurrently. ©2006 IEEE
  6. Keywords:
  7. Electric potential ; Genetic algorithms ; Induction motors ; Optimization ; Switching ; Voltage control ; PWM inverters ; Torque pulsation ; Total harmonic current distortion (THCD) ; Harmonic distortion
  8. Source: International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006, Taormina, 23 May 2006 through 26 May 2006 ; Volume 2006 , 2006 , Pages 1361-1366 ; 1424401941 (ISBN); 9781424401949 (ISBN)
  9. URL: https://ieeexplore.ieee.org/abstract/document/1649979