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Table 4 Dynamic enactment of Droop control, VSM, VOC, and VOC-PSO

From: Parallel inverter control using different conventional control methods and an improved virtual oscillator control method in a standalone microgrid

Reference active power Specifications Droop VSM VOC VOC-PSO
+50% Changes tr (ms) 2.51 2.49 0.30 0.28
  ts (ms) 4.24 4.21 2.41 2.35
  ess (%) 1.65 1.63 0.83 0.26
  Over shoot (%) 2.46 1.36 15.3 6.01
  Under shoot (%) 18.1 4.82 0 0