With the current domestic-driven approach than the traditional upper structure to replace the three-phase AC induction motor with three-phase permanent magnet servo motor; fuzzy control method to complete the servo motor with variable pump control coordination matching control method.
Vertical Injection Molding Machine system total power loss control servo pump is mainly composed of two parts:
A power loss) of the motor, this loss includes copper loss and iron loss of the motor with the mechanical loss. Usually this loss is unavoidable, only use high-performance motors to reduce losses.
2) loss of hydraulic power systems. Since the adoption of the servo motor variable displacement pump control system. This loss without throttling losses with overflow losses, but includes only volume loss with mechanical transmission loss due to leakage of the hydraulic system caused. Thus such a system total power loss is very small, with better energy efficiency.