Design Of Hydraulic Oil Supply System Based On Fuzzy Control

It is discovered that so many problems through practice for many years in the oil supply systems of electrostatic oiler, produced by wuhan university of science and technical, for example: the direct current machine and the measurement pump's maintains are complicated and price is high; the systematic response speed and stability precision aren't very ideal. So, this problems cause to restrain its popularization and application. So we have retrofitted it, have developed better new hydraulic oil supply system. The improved system is constituted of VVVF electrical machinery, quantitative pump and transducer. Through flow sensor to measure the flow's deviation of the quantitative pump and differential unit to the measure change rate of flow's deviation in the end, feedback to PLC controller. The system adopt fuzzy algorithm to fuzzy control, form closed loop and real-time control system.It is indicated through the massive experiments that, under the premise of the guarantee of the oil mass effect, adopted the fuzzy algorithm to the fuzzy control of the frequency change, design the new hydraulic pressure oil supply system of static electricity oil machine, not only realizes non- reduce expenses to lose, the overflow and release, gives off heat few; Meanwhile in order to avoid the long-term high speed movement, the electrical machinery and the pump run below in fundamental frequency in majority time, can reduce the abrasion of the pump and the system noise effectively, extend the service life, enhances the reliability of the system; Moreover also enhances the speed of response and the stable precision of the system, enable its application scope to obvious expansion, has good promoted application prospect.