Super-capacitor grid-connected control system and method for emergency traction mode of tramcar

The invention discloses a super-capacitor grid-connected control system and method for a tramcar emergency traction mode. The control system comprises at least two super-capacitor modules, wherein each super-capacitor module is connected with a direct-current bus of a tramcar through a contactor, each contactor is connected to a main control unit, and the main control unit realizes the grid-connected control of the super-capacitor modules by controlling the actions of each contactor according to a hard wire instruction from a driver cab, so that the corresponding super-capacitor modules are connected to the direct-current bus of the tramcar. According to the invention, super-capacitor grid-connected control is carried out by the hard wire switch of the driver cab, and after the emergency traction mode is activated, grid-connected operation of the super-capacitor module is independently, safely and reliably completed, so that the normal operation of the emergency traction mode of the tramcar is guaranteed, it