Case 1

(No Frequency control)

Case 2

(Frequency control

with Notch filter)

Case 3

(Frequency control

with Deadband)

Maximum Deviation

of HVDC power

+∆P_ref [p.u.]

0.0

0.100

0.100

Maximum Deviation

of HVDC power

−∆P_ref [p.u.]

0.0

−0.100

−0.100

Standard Deviation

of HVDC power [p.u.]

0.0

0.0561

0.0438