High-voltage control unit for motor train unit network control system

The invention relates to a high-voltage control unit for a motor train unit network control system. The high-voltage control unit (CLT) comprises a main processing unit (MPU), a signal input module and a signal output module, wherein the signal input module comprises a temperature acquisition module, a current value acquisition module (AD-RIL), an analog-to-digital conversion module (A-D RIL) anda digital quantity input module (INDI); the MPU module judges the input signal and outputs the judged result to the signal output module or a central control unit in a train network control system; and the signal output module comprises a digital quantity output module (USDR) and a relay module (FSDO) and controls a relay and a switch of a high-voltage circuit. In the process of protecting and managing the high-voltage circuit, the high-voltage control unit has the advantages of high reliability and good real-time property; and after various sensor signals of the high-voltage circuit are acquired, the various sensor signals are subjected to comprehensive logical judgment by combining a running state of a train, and a corresponding high-voltage protection mode is provided.