Singular Perturbation Theory-Based Qualitative Dynamics Investigation of Flywheel Energy Storage System in Discharge Mode

Figure 15

Stroboscopic phase trajectory of the full-system in 𝑋₅(𝜔)−𝑋₁(𝑖_𝐿) as well as the transient fixed points curves at (a) 𝐽^′=0.5⋅𝐽, (b) 𝐽^′=0.25⋅𝐽, and (c) 𝐽^′=0.1⋅𝐽. H ₄, H ₅, and H ₆-Hopf bifurcation point.

(a)

(b)

(c)