Robust Control of Pressure for LNG Carrier Cargo Handling System via Mirror-Mapping Approach

Table 3

Parameters of liquid cargo tanks for thermal load calculation.

Control law			Overshoot () (%)
The algorithm in this note	2.133	2.002	6.54	1.913	7.292	2.634
2-DOF	2.181	2	9.05	2.911	19.824	3.743

The rise time of response is defined as . The peak value of the step response is denoted by . is the value of stability sate. The time to reach peak value is . Overshoot is defined by the equation: . These values are calculated and given in Table 3.