Affordable Access

Visokofrekvencijski interferencijski signali generirani u sustavima s PWM izmjenjivačima, dugačkim kabelima i asinkronim motorima

KoREMA - Croatian Society for Communications, Computing, Electronics, Measurement and Control
Publication Date
  • Common Mode Currents
  • Differential Mode Currents
  • High-Frequency Interferences
  • Induction Motor
  • Parasitic Phenomena
  • Struje Zajedničkog Spoja
  • Diferencijalne Parazitne Struje
  • Visokofrekvencijski Interferencijski Signali
  • Asinkroni Motori
  • Parazitne Pojave
  • Communication


The operation of inverter-fed asynchronous motor drives is inherently accompanied by high-frequency interferences caused particularly by parasitic currents of the common and differential modes. These emissions propagated by conduction and radiation may unfavourably affect the operation of nearby telecommunication and signal cables and various low-current devices. The paper deals with an analysis of these phenomena based on theoretical considerations and results of special measurements of the common and differential mode disturbances. Evaluated are mainly the frequency characteristics of selected parts of the system and their contributions to the resultant harmonic spectra.

There are no comments yet on this publication. Be the first to share your thoughts.