Research Of Pantograph Active Control Based On Pneumatic System

To ensure the security and stability of high-speed train, one of the key issues is to guarantee the collection quality of pantograph-catenary. In order to achieve that goal, the system should make the pantograph have good traceability for catenary, as well, appropriate pressure between pantograph and catenary is also needed. The excessive pressure would cause the wear of pantograph carbon slide plate, shorten its sevice life, and the low pressure would bring about collection quality instability. So the purpose of this paper is to make the pantograph work better.A series of research have shown that application of active control technology on the pangograph can effectively improve the collection quality of pantograph-catenary,this paper accordingly conduct relevant design,test and study which base on the active control technology. According to the railway demand,the paper developed an active control system,which made the speed of train,etc, as a condition, and made the pressure that ascend the pangograph as control objectives. The system mainly consists of two parts, one is the control section,the other one is the pneumatic system. Control section is mainly responsible for communication with locomotive and control the pneumatic system. The pneumatic system is responsible for receiving the signal from the control section and control the airfloat pressure. According to the design, we have completed the two parts development and outsourcing., then we connected two parts together, finally completed system formed.Based on the active control system, we conducted the pantograph active control test, which use high speed pantograph as the test object. The experimentt mainly got the characterisitics of airfloat, and the force change on the pantograph,under the several different control signals,with the use of pressure sensor.