Design And Realization Of The Automatic Control Software System Of Screw Refrigeration Compressor

With the development of the society, the system of screw refrigeration compressor serving as the developing field of refrigeration is growingly widely used in the aspects of industry.That the automatic control software system of screw refrigeration compressor is the key to make the system run correctly and efficiently. Associated with the automatic control software system of screw refrigeration compressor of the Wuhan New World refrigeration corporation the software system has been designed and developed.Due to the shortcomings in the control of the system of screw refrigeration compressor such as troublesome operation, difficult maintenance, and redundant human operation the model of PLC control system has been advanced after the particular analysis of the mechanism and characteristic of the system of screw refrigeration compressor. Programmable logic controller is put into the core position of process control layer. The thought of structure including structure analysis, structure design, structure coding and testting is used in the development of the PLC control software having solved the chaos administration for the software in the programmable logic controller becomes increasingly large. WINCC based on the Object Oriented technology is adopted to make the solution of disadvantages including long developping cycle and high cost so as to realize the mature and efficient upper-computer system and improve the reliability and revisability.The development of PLC control system of the system of screw refrigeration compressor has a large number of advantages such as better control, economic cost, higher reliability and easier maintenance which result in the increased product, improved quality, reduced consumption and higher security and offer a reference for the purpose of using the software engineering technology in the automatic field.