电力机车自动过分相系统信号处理器的系统设计
Design of signal processor in system of electric locomotive's auto-passing the phase division
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摘要: 针对电力机车自动过分相信号处理问题,以GFX-3型车载自动过分相系统功能原理为基础,设计了自动过分相系统信号处理器.该系统应用西门子S7-200 PLC作为信号处理器的核心控制器件,采用光电耦合、抗干扰、电路保护并配合软件,进行信号采集与处理电路(即PLC外围电路)的设计,从自检、屏蔽、响应及输出等功能出发进行PLC程序的设计,解决了电力机车自动过分相时机车定位信号和机车行进方向信号的调整问题.试验结果表明,该系统的信号处理准确率比GFX-3型系统提高了1.2%,具有实用性和推广价值.Abstract: To save the problem of signal processing in electric locomotive's passing the phase division,the signal processor of system of electric locomotive's auto-passing the phase division on the base of GFX-3 system function was designed.Using Siemens S7-200 PLC as core control unit of signal processor in system of electric locomotive's auto-passing the phase division.The electro-circuit of signal collecting and settling is designed from such aspects as photo-coupling,anti-interference,circuit protection and matching software to perform function.The PLC program is designed from the needful functions such as self-checking,shielding,responding and exporting.And so signal processor achieves the function of adjusting the original signal of system of electric locomotive's auto-passing the phase division.The results of the test showed that the system's signal processing accuracy rate has a 1.2% increase compared with the GFX-3 system and so it may be used with practicability and value in the future.
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Key words:
- electric locomotive /
- auto-passing phase division /
- signal processor /
- PLC
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