| Abstract |
Harmonic distorsion in electricity-networks caused by electronic convertors consists of lower harmonics and commutation vibrations. Each type of polution has his own propagation and his own influence on network-elements. The lower harmonics will be influenced by the type of convertor (3-phase or 6-phase bridge) commutation reactance, asymmetrical control, interrupted DC-current, the type of load, which can be: DC-motor, DC-traction-network, current-invertor, voltage-invertor. I have participated in a lot of measurements to verify and to modify the theory. The measurements consist harmonic network impedances and harmonic distorsion of convertors under various conditions including ripple-control-apparatus. |
