Question

5. A spacecraft with a camera is shown in the figure. The camera slews about 16º in a canted plane relative to the vase. Reaction jets stabilize the base against the reaction torques from the slewing motors. Suppose that the rotational speed control for the camera slewing has a plant transfer function, \frac{1}{(s+2)(s+3)(s+4)} Boom Camera Solar panel A proportion plus derivate controller is used in a system as shown in the figure, where, $G_c(s) = K_p + K_ds$ and where $K_p > 0$ and $K_d > 0$. Obtain and plot in Matlab the relationship between $K_p$ and $K_d$ that results in a stable closed-loop system. $T_d(s)$ Controller +\\ $E_a(s)$ $R(s)$ $K_p + K_ds$ Plant $\frac{1}{(s+2)(s+3)(s+4)}$ $Y(s)$

          5. A spacecraft with a camera is shown in the figure. The
camera slews about 16º in a canted plane relative to the
vase. Reaction jets stabilize the base against the reaction
torques from the slewing motors. Suppose that the
rotational speed control for the camera slewing has a
plant transfer function,
\frac{1}{(s+2)(s+3)(s+4)}
Boom
Camera
Solar panel
A proportion plus derivate controller is used in a system as shown in the figure, where,
$G_c(s) = K_p + K_ds$
and where $K_p > 0$ and $K_d > 0$. Obtain and plot in Matlab the relationship between $K_p$ and $K_d$ that
results in a stable closed-loop system.
$T_d(s)$
Controller
+\\
$E_a(s)$
$R(s)$
$K_p + K_ds$
Plant
$\frac{1}{(s+2)(s+3)(s+4)}$
$Y(s)$

5. A spacecraft with a camera is shown in the figure. The
camera slews about 16º in a canted plane relative to the
vase. Reaction jets stabilize the base against the reaction
torques from the slewing motors. Suppose that the
rotational speed control for the camera slewing has a
plant transfer function,
(1)/((s+2)(s+3)(s+4))
Boom
Camera
Solar panel
A proportion plus derivate controller is used in a system as shown in the figure, where,
Gc(s) = Kp + Kds
and where Kp > 0 and Kd > 0. Obtain and plot in Matlab the relationship between Kp and Kd that
results in a stable closed-loop system.
Td(s)
Controller
+

Ea(s)
R(s)
Kp + Kds
Plant
(1)/((s+2)(s+3)(s+4))
Y(s)

Added by Shirley E.

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