Robust PD+ Control Algorithm for Satellite Attitude Tracking for Dynamic Targets

Table 1

Comparison of the proposed controller with existing controllers.

	Convergence rate (s)	Maximum control torque (Nm)	Maximum angular velocity (rad/s)	Complexity	Number of control parameters	Robustness
Proposed method in this paper	50	0.5	0.08	Relatively high	About 10 parameters to decide	High
PID controller	300	5	0.2	Low	3	High
Robust PD controller	70	0.5	0.08	Medium	About 15 parameters	High
Standard sliding mode controller	200	3	0.2	Low	3	High
Dynamic sliding mode controller	40	0.5	0.1	Medium	8	Vulnerable to measurement error and large model uncertainty
Finite-time controller	35	0.5	0.1	High	About 15 parameters	Vulnerable to measurement error and large model uncertainty