Virtual Line Shafting-Based Total-Amount Coordinated Control of Multi-Motor Traction Power

Table 1

Definition of each symbol in the mathematical model.

Symbols	Definition
	Resistance of armature circuit
	Inductance of armature circuit
	Motor current
	Output angular velocity of gearbox of th motor
	The voltage applied to the input terminals of the armature circuit
	Back electromotive force constant
	Speed reduction ratio of the gearhead
	Inertia moments of the motor
	Inertia moments of the gearhead
	Viscous damping coefficients of the motor
	Viscous damping coefficients of the gearhead
	Motor torque constant
	The bounded load torque
	Motor output torque