A new medium voltage PWM inverter topology for adjustable speed drives Conference Paper uri icon

abstract

  • In this paper a new PWM inverter topology suitable for medium voltage (2300/4160 V) adjustable speed drive (ASD) systems is proposed. The modular inverter topology is derived by combining three standard 3-phase inverter modules and a 0.33 pu output transformer. The output voltage is high quality, multi-step PWM with low dv/dt. Further, the approach also guarantees balanced operation and 100% utilization of each 3-phase inverter module over the entire speed range. These features enable the proposed topology to be suitable for powering constant torque as well as variable torque type loads. Clean power utility interface of the proposed inverter system can be achieved via an 18-pulse input transformer. Analysis, simulation, and experimental results are shown to validate the concepts.

name of conference

  • Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242)

published proceedings

  • CONFERENCE RECORD OF THE 1998 IEEE INDUSTRY APPLICATIONS CONFERENCE, VOLS 1-3

author list (cited authors)

  • Cengelci, E., Sulistijo, S. U., Woo, B. O., Enjeti, P., Teodorescu, R., & Blaabjerg, F.

complete list of authors

  • Cengelci, E||Sulistijo, SU||Woo, BO||Enjeti, P||Teodorescu, R||Blaabjerg, F

publication date

  • December 1998