Rail vehicle electric energy absorbing device

Abstract

The invention provides a rail vehicle electric energy absorbing device, comprising at least two parallel electric energy absorbing modules. Each electric energy absorbing module comprises a buck/ boost unit, an energy storage unit, a master control unit and a current sharing control unit, wherein the inlet side of the buck/ boost unit is in connection with the inlet side of a traction system, and the opposite side is in connection with the energy storage unit; one side of the current sharing control unit is in connection with a vehicle network system, and the opposite side is in connection with the master control unit; and the master control is respectively in connection with the buck/ boost unit, current sharing control unit and vehicle network system. Each master control unit adjusts the charging current and discharging voltage of each energy storage unit and keeps the charging current and discharging voltage consistent. According to the utility model, the rail vehicle electric energy absorbing device can be used for solving the problem that the charging current and discharging voltage of each energy storage unit in a rail vehicle can not be kept consistent, thereby allowing the rail vehicle to drive in a reserved speed.

Description

technical field [0001] The invention relates to electrical technology, in particular to a rail vehicle electric energy absorbing device. Background technique [0002] Rail vehicles use electric energy as their power source. They have low operating costs, long service life, no pollution to the environment, and have the advantages of high starting acceleration and climbing ability. They have become the main means of transportation between cities and within cities. During the operation of the rail vehicle, due to the short station distance, the rail vehicle starts and brakes frequently, and most of the energy generated by the braking is released by the absorbing resistor in the form of heat, which not only wastes energy, but also increases the internal temperature of the rail vehicle station. The burden of air conditioning and ventilation. [0003] In view of the above problems, in the prior art, supercapacitors are usually used as energy storage units to absorb and store the ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a rail vehicle electric energy absorbing device, which is used to solve the problem that the charging current and discharge voltage of the energy storage units between the electric energy absorbing modules of the rail vehicle cannot be kept consistent, and realize the charging of the energy storage units among all the electric energy absorbing modules The current and discharge voltage are kept consistent so that the rail vehicle can travel at a predetermined speed

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