Metoda obwodowo-polowa obliczania charakterystyk zewnętrznych prądnic synchronicznych z magnesami trwałymi pracujących samotnie na odbiorniki typu R lub RL

This paper deals with the field-circuit method to calculate the load characteristics of a stand-alone permanent magnet synchronous generator (PMSGen) connected to R-L type load. This method is based on the so-called loading method [1] ÷ [3], used widely for calculation of lumped parameters of permanent magnet synchronous motor's (PMSM) equivalent circuit model. In the developed calculation algorithm, the circuit equations of PM synchronous machine are adopted so to represent the generative mode of stand-alone operation with the assumption that load is purely of R-L type. The iterative calculation of voltage phasor V1 phase angle is used to find the appropriate values of output voltage and current magnitudes for a given power factor cos φ and for given output power.