TY - NEWS
TI - Reactive power sharing among distributed generators in a microgrid by using virtual current
AU - Molina Vilora, Eder Alexander
AU - Candelo Becerra, John Edwin
AU - Hoyos Velasco, Fredy Edimer
AB - This  paper  presents  a  new  autonomous  effective  power  distribution  control strategy for three-phase parallel inverters. The proposal uses a controller that can  provide  the  system  with  accurate  power  sharing  among  distributed generators installed in the microgrid once some load variations are presented in the network. The methodology uses a virtual current loop introduced into the current controller of the inverter to optimize the output signal, which goes directly  to  the  PWM.  This  virtual  current  is  obtainedby  using  a  virtual impedance loop. Furthermore, a small-signal model of the system is used to check  stability  of  the  proposed  control  strategy,  which  was  developed  for island  mode  operation  of  the  microgrid.  Simulations  were  performed  for  a microgrid   withtwo   generators   and   a   load   with   five   households   and implemented  in MATLAB/Simulinksoftware.  The  results  show  that  the model  provides  a  wide  margin  of  stability  and  a  rapid  response  when electrical  loads  change,  thus  fulfilling  the  reactive  power  sharing  among generators.  The  proposed  method  shows  a  large  margin  of  stability  and  a rapidtransient response of the system
DA - 2021
KW - Distributed generation
KW - Generación distribuida
KW - Microgrid
KW - Microrred
KW - Reactive power sharing
KW - Reparto de potencia reactiva
KW - Virtual current
KW - Corriente virtual
KW - Virtual impedance
KW - Impedancia virtual
PB - Institute of Advanced Engineering and Science
UR - https://dspace.tdea.edu.co/handle/tdea/3053
ER -