Table 3 Selected coefficients of ‘β’ characteristic.

From: Low-voltage ride-through capability in a DFIG using FO-PID and RCO techniques under symmetrical and asymmetrical faults

Procedure

LLL fault

ll fault

\(\beta_{d}\)

\(\beta_{q}\)

\(\beta_{d}\)

\(\beta_{q}\)

Initial input values

5.852

10.391

11.254

19.625

PSO

0.815

0.941

1.157

1.858

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