Power Peak Sources for Isolated Network.

Abstract

In the little area networks with one generator, any greater  power  step  in  load  causes  energy  quality  problem,  namely  if  in  GEN-SET  (Generating  sets)  the  modern  VSCF  technology  (variable  speed  -  constant  frequency)  is  used  to  reach  the  fuel  consumption  saving.  The  voltage  stability  is  improved  there,  thanks  the  frequency  converter  output,  but  another  problem  appears  -  engine  cannot  accelerate  from  low  speed  at  higher  power  step-up  load.  Possible  solution  of  peak-power  delivery  into  VSCF  system  (from  accumulator,  inter-circuit capacitors or ultra-capacitors) is main task of this paper.