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Table 10 Power quality constraints measurement with the designed MIMO NI-RLLC controller

From: Improved voltage tracking of autonomous microgrid technology using a combined resonant controller with lead-lag compensator adopting negative imaginary theorem

Types of load

Total harmonic distortion (THD) [standard: < 5%]

Voltage deviation [standard: < 5%]

Voltage imbalance ratio [standard: < 3%]

Consumer load

2.00

1.02

0.00

Nonlinear load

2.12

2.97

2.87

Unknown load

2.06

3.02

0.00

Unbalanced load

2.19

4.53

2.79

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