Traction control system for electric multiple units

A traction control system for electric multiple units, provided to control the operation of inverter power module and four-quadrant power module of a traction converter for electric multiple units, mainly comprising a power supply module, inverter/four-quadrant modules, an I/O module, a network module and a debugging module, wherein,

• the inverter/four-quadrant modules each mainly consist of a fast computing board, a signal sampling board and a pulse interface board,
• the signal sampling board is mainly configured to receive signals from an external sensor, receive pulse feedback signals sent by the pulse interface board and receive control signals sent by the fast computing board, and send pulse signals to the pulse interface board, send processed acquisition signals to the fast computing board, and send relay control signals to the I/O module;
• the fast computing board is mainly configured to receive analog signals and digital signals acquired and processed by the signal sampling board and receive control signals sent by a host processor, and send control signals to the signal sampling board and send processing signals to the network module;
• the pulse interface board can be connected to two groups of inverter power modules and two groups of four-quadrant power modules at most;
• the pulse interface board is mainly configured to receive IGBT status signals sent by the inverter power module and four-quadrant power module and receive IGBT control signals sent by the signal sampling board, and send the IGBT status signals to the signal sampling board and send the IGBT control signals to the inverter power module and four-quadrant power module;
• bidirectional communication between the signal sampling board and the fast computing board is realized by a high-speed differential LinkPort bus;
• bidirectional communication between the signal sampling board and the I/O module is realized by a high-speed bus;
• bidirectional communication between the fast computing board and the host processor, between the network module and the host processor, and between the debugging module and the host processor are realized by a CPCI bus;
• bidirectional communication between the I/O module and the inverter/four-quadrant modules is realized by a high-speed bus;
• bidirectional communication between the I/O module and the network module, between the I/O module and the debugging module are realized by a CAN bus;
• the network module comprises a network board, and the network module receives digital signals and analog signals sent by the I/O module and transfers the digital signals and the analog signals to the host processor via the CPCI bus;
• receives command signals from the host processor via the CPCI bus, and sends commands to the I/O module to control the I/O module to output analog signals and analog signals;
• controls data interaction between an MVB interface unit and an external MVB bus;
• and sends MVB data to the host processor via the CPCI bus, and sends data to be sent by the host processor to the MVB interface unit via the CPCI bus;
• the debugging module comprises a debugging board;
• the debugging module receives debugging commands and debugging signals sent by the host processor via the CPCI bus;
• the debugging module receives debugging signals sent by the signal sampling board via a high-speed bus;
• and,
• the power supply module supplies power to the inverter/four-quadrant modules, the I/O module, the network module and the debugging module.