[其它]Parameter measurement of multi-phase synchronous machines with AC and DC output

    Abstract- Many self-contained electrical systems require 0,DrVGa  
simultaneous AC and DC power supply. The hybrid AC- 2xO[ ?fR  
DC supply generator(刀ADSG) is a good solution .Several !0Nf`iCQ(  
independent Y-connected  windings are equipped on the [(#)9/3,  
stator of HADSG one delivers AC power and the others, Il&7n_ H  
termed DC windings, are connected to the bridge rectifier. *(q?O_3,b  
Methods  of  parameter  measurement  considering  DC $u~ui@kB  
winding resistances are presented for a typical HADSG -WqhOZ  
with a 12-phase DC winding in this paper. The d-axis self M3@qhEf?vk  
and mutual reactances can be acquired by various short- 'ZMh<M[  
circuit tests for one or two three-phase windings. Relevant a_5s'Dh  
formulas are derived for calculating the d-axis parameters >(igVaZ>  
through measuring the short-circuit currents and voltages Ru*gbv,U  
of all open three-phase windings. According to the voltages sZ&|omN  
and  currents  measured  in  slip-tests  for  AC  and  DC W5`pQdk  
windings, the q-axis self and mutual reactances can .. B47I?~{  
(W:@v&p  

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