Jan Staszak

Utilization of permanent magnet synchronous motors in industrial robots

The paper presents results of research concerning the basis of utilization of PMSMs in industrial robots. A mathematical model of PMSM is described. Identification of PMSMs parameters is performed as well as an analysis of simulation and experimental investigation results of transients and steady states of electrical and mechanical quantities is presented.

A simple way of determining induced voltages in the damping bars of salient pole synchronous generator

The article presents a simple way of determining induced voltages in the damping bars of salient pole 5.5 kVA salient pole synchronous generator under no load conditions. Field-circuital model created by coupling FEMM and Matlab environments was used for voltage calculation purposes. The simulation results were verified experimentally in the measurement stand utilizing a purpose built special rotor geometry with additional slip rings connected to individual damping bars.

Simulations and Experimental Investigations of an Impulse System for Battery Charging in Electric Bike

The paper presents simulation results of a push–pull converter allowing energy recovery back to two Sealed Lead-Acid 7 Ah, 12 V serially connected batteries. The converter is powered by three phases of induced voltage from a BLDC motor mounted in the front wheel hub of an electric bike. In a steady state, computed current and voltage waveforms were verified experimentally in the measurement stand on the basis of registered waveforms.

Assessing of the tripping effectiveness of fuses in electrical installation fed from a synchronous generator set

The paper presents a simply method for assessing the effectiveness of fast automatic disconnection of supply (electric shock protection) based on measurement of Joules integral and thermal equivalent current in 230/400 V electrical installations fed from a synchronous generator sets. Experimental studies are carried out under short-circuit conditions using Electronic Phase Detector and Joule Integral Measurement device utilizing 5.5 kVA salient pole synchronous generator protected by gF and gG class fuses.