Table 4 Comparison of simulation and experimental results for key performance metrics.

From: A novel hierarchical control strategy for enhancing stability of a DC microgrid feeding a constant power load

Experiment

Metric

Simulation results

Experimental results

Improvement

CPL fluctuation experiment

Efficiency (%)

94

88

6

Overshoot (%)

2.8

3.1

− 0.3

Response time (s)

0.25

0.7

− 0.45

Waveform comparison

Figure 14c

Figure 24

 

Secondary control activation experiment

Efficiency (%)

96.8

89.5

7.3

Overshoot (%)

0

0

0

Response time (s)

0.35

0.75

− 0.4

Waveform comparison

Figure 13d

Figure 19

 

DC bus voltage reference experiment

Efficiency (%)

96.5

92.5

4

Overshoot (%)

0

0

0

Response time (s)

0.7

0.8

− 0.1

Waveform comparison

Figure 16d

Figure 25

 

Plug and play experiment

Efficiency (%)

94.8

90.5

4.3

Overshoot (%)

15.625

16.666

− 1.041

Response time (s)

0.25

0.4

− 0.15

Waveform comparison

Figure 17c

Figure 27

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