Research on Grounding Rheostatic Braking of Linear Motor Urban Rail Transit;

Development of temperature monitor bridge for braking resistor;

The calculation of torque, frequencg converter capacity and braking resistors are worked out according to load torque diagram and speed curve in this paper.

The calculation method of the regenerative braking energy are given as well as the design method of the ground braking resistor.

Based on the cause analyse of wheel wear,a method using resistance brake is put forward to reduce the wheel wear,which may prelong the usage circle and reduce maintenace cost of vehicles.

A resistance brake control system for diesel locomotives is introduced realized via Intel 8098.

By analysing the energy consunmption of traction system on Guangzhou Metro Line 1 trains during the normal operation,it is indicated that the energy-saving effect of feedback brake is prominence and the power-wasting by brake resistance is limited.

In the primary period, only resistance braking and mechanical braking are adopted by metro vehicles.

This paper analyzes the main circuit of resistance braking and the controling way, discusses the principle of resistance braking and interprets the application of resistance braking to electric driving machinery of subway.

By analyzing the energy consumption of the traction and braking system of trains running on Shanghai Metro Line 2,the relationship between regeneration braking and resistance braking is investigated.