Aiming at the problems of three-phase current in the three-phase electrode lift system,such as strong coupling,high sensitivity adn difficult to adjust,an improved fuzzy controller is put forward in this paper.

The date got from field manifests that arc furnace electric pole fluctuation PLC control system based on fuzzy c.

This paper introduces a simulation experimental system of 3-phase AC arc furnace,developing a DSP based electric-arc furnace electric pole fluctuation control system.

Aiming at a series of problems such as high failure rate,a great deal of maintenance resulting from the self-consumption electric pole vacuum arc furnace electric pole fluctuation control system consisting of simple analog device,the electric pole fluctuation control system consisting of PLC and fuzzy control is designed.

The Design and Research of Demonstration Platform Based on Lifting System;

The issue introduced design of lifting system of a miniature forest machinery.

The lifting system is a core of the large cooling bed design,and the key is the design of driving device.

Absorbing the distillates of same type platforms worldwide,the platform configures column leg with can and electric-driven rack & pinion jack-up system,with continuous jacking,easy operaton,adequate safety and desirable economic.

Research of gear-rack jacking system of self-elevating platform.;