Poprawa charakterystyk elektromechanicznych silników SynRM poprzez wprowadzenie magnesów trwałych do wirnika

This paper deals with comparison of electromechanical characteristics of SynRM and PMSynRM of the same mechanical size. First the constructions of SynRM and PMSynRM are described shortly. Then the field circuit method of PMSM parameters calculation, known as loading method [3 ÷ 5], is described. This method after same changes have been used for calculation of electromechanical characteristics presented in the paper. It is shown, that inserting of permanent magnets into the rotor of SynRM results in a significant improvement of motor performance. Especially the maximal value of synchronous torque T(S.max) can be two times higher in PMSynRM, still having better power factor and efficiency. It is shown that electromechanical characteristics cosφ=f(Pm) and η=f(Pm) of PM-SynRM are better for the all range of loads comparing to SynRM..