Root Locus Practical Sketching Rules for Fractional-Order Systems

Figure 3

Root-Locus of 𝐺₁(𝑠): (a) 𝑎₁=2 and 𝛼₁=1.5 result in RL branches in two sheets; (b) 𝑎₁=2 and 𝛼₁=1.6 result in RL branches in five sheets.

(a)

(b)