Projekt prądnicy synchronicznej z magnesami trwałymi do odnawialnych źródeł energii

The paper deals with the load characteristics of permanent magnet synchronous generators (PMSGs) operating stand-alone at constant rotor speed and connected to R or RL type linear loads. It is show that assuming a pure resistive linear load (power factor cos = 1) it is possible to design the PMSG so that the load characteristic of output voltage vs. output power U = f(P2) is very flat in the wide range of power P2. This goal can be achieved in the case of proper design of Interior PMSG constructions. The computational algorithm based on the so-called field-circuit loading method used for calculation of load characteristics presented in the paper is also described.