Research On The Train Accurate Stopping By ATO Controls Of CTCS-2

The Pearl River Delta region railway project is different from passenger dedicated line standard, but also different from the urban rail transit standard in operation mode, the train speed and the type of vehicles. It is a kind of new regional rail transportation that combine the passenger dedicated line and urban rail transit with a high speed, high density, and cross-line operational characteristics. The Pearl River Delta region railway project has a new demand of signaling system. C2+ATO signaling system is proposed to meet the new demands. It is extend the ATO function on the basis of the CTCS-2. The C2+ATO is innovative, there is no application of ATO on the main line railway precedent at home and abroad. So, it is nessary to study its technology program. The accuracy stopping in station is an important function of the C2+ATO signaling system. If the stopping position is inaccurate, it will be detrimental to the passenger and transport efficiency. The purpose of this thesis is the design of accurate stopping program and algorithm to meet the requirements of±30cm of stopping accuracy.First, C2+ATO signaling system will be built in the thesis. C2+ATO signaling system architecture, equipment, composition, interface and the main function will be discussed. The solution has developed high stopping accuracy. In the thesis, CRH6electric multiple units traction characteristic, braking characteristic, train basic resistance, train additional resistance will be analyzed. Equation of motion of CRH6electric multiple units single particl train model will be established. And then, the PID controller and the fuzzy PID control for high stopping accuracy will be designed by classical control theory and fuzzy control theory. At last, the C2+ATO accurate stopping solution will be verify to meet the accuracy requirements of the requirements of the Pear1River Delta region railway project.The simulation results show that the fuzzy PID controller is better than PID controller with their stopping errors of-26cm and-77cm. The stopping errors are-26cm,-84cm,107cm with the different balise settings location. The results show that the C2+ATO signaling system need at least two balise for high stopping accuracy, and the solution of accurate stopping can meet the requirement of the Pearl River Delta region railway project. The stopping errors are92cm,194cm,-85cm with the line conditions of the2‰downhill and5%o downhill and3%o uphill. The results show that the slope of the line have an adverse impact on stopping accuracy. At last, multiple sampling results show that the stopping accuracy has good dispersion of13.3%, meet the15%dispersion of performance indicators. Conclude, the C2+ATO accurate stopping solution and fuzzy PID algorithm will be meet the requirements of the Pearl River Delta region railway project.