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

    Abstract- Many self-contained electrical systems require j!It1B  
simultaneous AC and DC power supply. The hybrid AC- kTjx.  
DC supply generator(刀ADSG) is a good solution .Several |A'y|/)#Z  
independent Y-connected  windings are equipped on the <yw6Om:n<  
stator of HADSG one delivers AC power and the others, gtV^6(Y  
termed DC windings, are connected to the bridge rectifier. Y2j>@  
Methods  of  parameter  measurement  considering  DC KXQ &u{[<  
winding resistances are presented for a typical HADSG 3($cBC  
with a 12-phase DC winding in this paper. The d-axis self $E j;CN59  
and mutual reactances can be acquired by various short- mip2=7M|C  
circuit tests for one or two three-phase windings. Relevant -8r';zR  
formulas are derived for calculating the d-axis parameters 8$+mST'4N  
through measuring the short-circuit currents and voltages vSOO[.=  
of all open three-phase windings. According to the voltages bI_6';hq!  
and  currents  measured  in  slip-tests  for  AC  and  DC r}-si^fo;  
windings, the q-axis self and mutual reactances can .. rY~!h
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8R) 0|v&;  

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