Study Of EMC Research On Automatic Door Control System Of High-speed EMU

It is developed to direction of automation about EMU in our country afterdecades. On the one hand, EMU of Electronic give the comfort and convenienceof life to people, the other hand, it take pollution for people which theElectromagnetic Interference between electronic equipment, etc. In thedevelopment of electronic, it is more important for the ElectromagneticCompatibility. Also exists between the electrification of the motor car and otherequipments in the life of the above problem, the problem is more prominent in thesurrounding environment of the entire EMU.Electromagnetic Interference has thepotential to EMU fails, malfunctions, which will threaten the lives and propertyof passengers. Electromagnetic Compatibility study of EMU is mainlyconcentrated in discrete devices or equipments, Electromagnetic Compatibilityresearch. The electromagnetic environment of the EMU and the source ofinterference are relatively full, and have a guiding significance for vehicleElectromagnetic Compatibility studies. The research of ElectromagneticCompatibility for the equipments of EMU is still in the traditional design method,like design the filter, grounding and shielding measures. This is the mostsecurity, the most reliable method. There is no doubt, other emerging theoryapplication in EMU Electromagnetic Compatibility study of innovation scienceand technology, is encouraged. Based on the analysis of Electromagneticenvironment, establish a circuit model, mathematical it, the model simulation,optimization design, finally through the experiment and the fact that the changeproved to be the basic thought of research on electromagnetic compatibility.Chaos theory is emerging in recent years a systems science. Is the study ofnonlinear dynamical systems, the system for the overall performance of stability, but inside there will be unable to explain the unstable motion. This system has thecharacteristics of sensitive to initial value, if applied to it a tiny interference, theinterference will be in the system gradually enlarge, will eventually exceeded thepredicted range. Chaos theory for the study of economics, electronics, lifesciences and disciplines of great significance, chaos theory has also changedpeople the analysis problem, problem-solving ideas. At present, the chaos theoryin the electromagnetic compatibility research also achieved some great results.The most typical Chua’s circuit is one of the most simple nonlinear circuit systems,the chaos; electromagnetic compatibility research is in the field of electronicstarting point. At present, the voltage stabilizing DC converter (DC-DC converter)to apply chaos theory to study the electromagnetic compatibility of theachievement of science and technology more and more Mainly used to change thePWM pulse duty ratio method, so that the system is in a chaotic state, so that itcan be the signal frequency is widened, so that the individual frequency harmonicpeak is close to, can reduce electromagnetic interference.This topic will be on the idea of chaos theory used in the study high-speedEMU automatic door control system Electromagnetic Compatibility. PowerDC-DC converter, Electromagnetic Compatibility, for example, Change ofphysical methods such as filtering, shielding, etc. from the system level tounderstand the problem, solve the problem by adjusting circuit parameters of themethod, so you can save money and simplify procedures. In the chaos ofElectromagnetic Compatibility issues, the most important point is to find somecircuit parameters, changes in these parameters can be experienced by theperiodic state of the state until the chaotic state of the period-doubling.This paper also studies on the compatibility of permanent magnet DC motorelectromagnetic of the automatic door drive force. The motor is a strong nonlinearcircuit system. Research shows, the motor could also appear the phenomenon ofchaotic. And how to use or deal with the phenomenon of chaos is a difficult problem in academic research. At present, the grinding machine can use themethod of chaos anti control. Even if the system is more chaos, the motor speedwill be uniformly, to improve the grinding fineness.Although this topic has simply set the application of chaos theory in thestudy of high speed EMU Electromagnetic Compatibility, it draws lessons from ameaning in other research areas of Electromagnetic Compatibility. Later, we alsoneed to study the performance of EMU vehicle’s Electromagnetic Compatibility;further research of chaos theory, contact with other Electromagnetic Compatibilitytopic, and study on other method and technology to resolve ElectromagneticInterference.To sum up, this topic combined with the chaotic theory and ElectromagneticCompatibility of high speed EMU gating system. Provided the solutions to solvethe electromagnetic compatibility of gating system’s power, the simulation resultsproved that the method is reasonable.