A New Electrohydraulic Hybrid Energy-Saving System Used on the Reversible Rolling Mills

Table 6

Basic parameters of the energy recovery model of reversible rolling mill.

Name	Parameters	Value
Three-phase permanent magnet synchronous motor	Rated power (kW)	600
	Rated speed (rpm)	600
	Moment of inertia GD^2 (kg·m^2)	174
Roll	Moment of inertia (kg·m^2)	1.091
Axial plunger variable motor	Displacement (mL/r)	80
	Volumetric efficiency	0.97
	Mechanical efficiency	0.90
High-pressure accumulator	Nominal volume (L)	40
	Nominal pressure (MPa)	31.5
	Preinflation pressure (MPa)	18
Low-pressure accumulator	Nominal volume (L)	40
	Nominal pressure (MPa)	10
	Preinflation pressure (MPa)	2