Dynamic Sliding Mode Controller with Variable Structure for Fast Satellite Attitude Maneuver

Table 1

Simulation results comparison.

	Convergence time (s)	Max control torque	Max angular velocity	Conclusion
Standard sliding mode with larger parameter	90	1.3 Nm	0.18 rad/s	Best convergence rate, but control torque and angular velocity exceed system upper bound
Standard sliding mode with larger parameter	150	0.27 Nm	0.08 rad/s	Torque and velocity constraints are satisfied, but convergence rate is the slowest
Dynamic sliding mode proposed in this paper	80	0.5 Nm	0.08 rad/s	Same convergence rate as Case 1, and torque and velocity constraints are satisfied