Comparative Study of PWM Technique for Switching Loss Reduction and Acoustic Noise Reduction in VSI-Fed Drives

  • Tarang Kalaria
  • Tapankumar TrivediEmail author
  • Vinod Patel
  • Rajendrasinh Jadeja
  • Chandresh Patel
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 169)


Variable-frequency drives (VFDs) are widely used in the industry and off-grid PV-based pumping applications due to their versatile operation. The operating performance of VFDs in the given environment is mainly affected by switching losses and generation of acoustic noise. During the development of PWM techniques of VSI, both the attributes are considered separately. In this paper, different methods aimed at switching loss reduction and acoustic noise reduction are reported so that both the operating requirement of drives are satisfied. Different bus clamping methods such as DPWM0, DPWM1, DPWM2, and DPWM3 are studied and compared. Simulation results demonstrate the effectiveness of these schemes in reducing inverter switching losses and reducing acoustic noise of variable-frequency drive.


Switching loss reduction Acoustic noise reduction Discontinuous PWM 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Tarang Kalaria
    • 1
  • Tapankumar Trivedi
    • 1
    Email author
  • Vinod Patel
    • 2
  • Rajendrasinh Jadeja
    • 1
  • Chandresh Patel
    • 2
  1. 1.Electrical Engineering DepartmentMarwadi Education Foundations Group of InstitutionsRajkotIndia
  2. 2.Amtech Electronics Pvt. LtdGandhinagarIndia

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