Experimental Survey and Analysis on the Impact of the Commutation Process on a Positive Displacement Pump Driven by an Asynchronous Electric Motor

The results of a natural experiment carried out with a volumetric rotary hydraulic pump driven by a three-phase asynchronous electric motor are presented and analyzed in the present work. The basic pressure fluctuations of the "pump outlet" and their influence on the electrical parameters of the asynchronous machine were studied in quasi-set operating mode. The investigations were conducted with specialized equipment in real time and in the frequency domain. The connectivity and influence of the energy-exchange processes have been proved in both machines.