The conditions of equilibrium-points’ positions in the SC3 scenario.

Table 4: The conditions of equilibrium-points’ positions in the SC3 scenario.

Conditions	Equilibrium-points’ positions
$- 3 L^{2} θ - (L - 2 a) λ \leq Δ U \leq - 3 L^{2} θ + 6 a L θ - (L - 2 a) λ$	$d^{*}$ located between $0 ~ a$
$- 3 L^{2} θ + 6 a L θ - (L - 2 a) λ \leq Δ U \leq 3 L^{2} θ - 6 a L θ + (L - 2 a) λ$	$d^{*}$ located between $a ~ L - a$
$3 L^{2} θ - 6 a L θ + (L - 2 a) λ \leq Δ U \leq 3 L^{2} θ + (L - a) λ$	$d^{*}$ located between $L - a ~ L$