Research Article

An LMI-Based Simple Robust Control for Load Sway Rejection of Rotary Cranes with Double-Pendulum Effect

Table 4

Quantified results under condition .

Control method The maximum value of tracking error [deg] The maximum value of tracking error [deg]

Proposed controller 3.36 3.81

Conventional controller 3.10 3.75

ā€‰ The maximum value of hook sway angle [deg] The maximum value of hook sway angle [deg]

Proposed controller 2.40 2.31

Conventional controller 3.01 3.00

ā€‰ The maximum value of load sway angle [deg] The maximum value of load sway angle [deg]

Proposed controller 2.76 2.81

Conventional controller 4.21 5.14