Stability and Bifurcation in Magnetic Flux Feedback Maglev Control System

Table 1

Symbols of maglev system.

Signs	Significations
𝜙𝑚	Gap flux
𝜙𝑇	Main flux
𝜙𝐿	Leaking flux
𝜓	Gap flux linkage
𝑢(𝑡)	Voltage of magnetic coil
𝑊𝑚	Magnetic field energy in bulk V
𝑅	Resistance of magnetic coil
𝐵	Gap flux density
𝜇0	Magnetic permeability of atmosphere
𝐹𝑚	Magnetic field potential
𝑅𝑚	Magnetic resistance
𝐴	Magnetic pole area
𝑖(𝑡)	Current of magnetic coil
𝑤𝑚	Magnetic field energy density
𝑁	Number of magnetic coil
𝑧(𝑡)	Gap among electromagnet and track
𝐹	Electromagnetic force
𝑀	Total mass