The Design And Implementation Of The Measuring And Control System Of Modularize Pulse Forming Network

With the improvement and expansion of capacity and scale of the electromagneticemission system, the centralized measurement and control system becomes harder tosatisfy the acquirement of the experiment. In order to flexibly adapt to electromagneticemission process capacity’s expansion and control, a design of measurement and controlsystem of modular pulse forming network is given based on the analysis the existing EMLsystem, it is able to measure and control the PFN module unit. This thesis is to design amodular PFN measurement and control system, including the measurement and controlterminals and control center software. The former is able to monitor the energy storagevoltage, control the sequential discharge, record the discharged wave and control energyrelease. The latter is used as the window of human and computer interaction to show thedata and give orders. The following is the main tasks:First, the development of PNF measurement and control system is introduced basedon the analysis of the research status It emphasizes the necessity of modular PNF system.Second, the electromagnetic emission process model is established according to thesimulation analysis of the speed process in electromagnetic emission bore and derivationof speed and sequential discharge. The relationship between speed out of the bore andcharged voltage, discharged sequence, quality and size of railway is given after MATLABsimulation. Also, a new method to control the armature speed out of the bore by tertiarysequence discharge is given to serve as the theory basis.Third, a communication protocol of electromagnetic emission system based on CANbus is made by the analysis of the emission process and the theory derivation. A detaileddesign scheme of software and hardware of this new system is given. This paper alsointroduces the design and implementation of control center software of this system.Finally, setting up the experimental environment and debugging the designedcontrolling system, which includes debugging the software and hardware in terminal andsoftware in control center. The test results show that the measurement and control systemhas the advantage of modular, intelligent, high interference etc.