| Abstract:Locomotive running safety is an important part of the rail transportation, and anti-slip/anti-slip control is the key technology of the locomotive active safety. Although at present anti-skid controller has been installed in all types of high speed passenger locomotive in our country, in the aspects such as control method application effect,they can also be further improved and perfected. This paper firstly made a study of the current commonly used antiskid control methods in-depth, and based on this, put forward the combination correction method based on angular acceleration control method and model observation method. This method has high reliability and sensitivity, and is realized through the fuzzy controller. Secondly, locomotive single-spindle control model was established, and fuzzy controller was designed by LabVIEW, and anti-skid/anti-slip control simulation of driving and braking under many conditions was conducted combining with the locomotive model. The results showed that the control algorithm could effectively prevent the slide of locomotive and could improve locomotive adhesion utilization. Then this paper, achieved the communication between industrial computer as the client and the driver console as a server using TCP protocol in XML format and implemented the control of industrial computer towards the frequency converter adopting RS485wth USS communication protocol and achieved the real-time acquisition of parameters such as voltage, current and speed and various related switch quantity control using the data acquisition card PCI1716L and completed the construction of the hardware-in-the-loop simulation test bench. Finally, the paper made a test for the motorcycle skid/air defense system in low orbit plane sticky and in the higher orbital plane and the test results showed that:without anti-skid control, the locomotive appeared macroscopic sliding phenomenon and if the adhesion coefficient was much smaller, sliding would be more serious; after using the anti-skid control, slide rate fluctuation was small and there was no sliding phenomenon. That was to say the antiskid/air defense system designed in this paper was effective and feasible. |
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