LIU Xiong. Design of traction system for serialized China standard metro train. [J]. Electric drive for locomotives (2):55-66(2022)
DOI:
LIU Xiong. Design of traction system for serialized China standard metro train. [J]. Electric drive for locomotives (2):55-66(2022) DOI: 10.13890/j.issn.1000-128X.2022.02.009.
Design of traction system for serialized China standard metro train
Many problems appear as the rapid development of China urban rail transit
such as various vehicle systems
huge number of spare parts and low localization level
which make it be urgent to establish China standard as well as key system in rail transit industry
and put forward higher requirements and bring new challenges for the design of traction system of metro vehicle. Firstly
the research objective and simplification principle of traction system design were detailed
and four standard metro train models with traction and electric braking characteristics were presented
which could cover more than 95% of the demand of metro industry. Through comparison of the main products in the metro industry
a kind of high voltage circuit topology was proposed
which was beneficial to the layout of the whole vehicle equipment
and the main circuit of the permanent magnet synchronous traction system was also simplified. Meanwhile
the key parameters of the main circuit
the power of motor and chopper resistance were determined through analysis and calculation. By analyzing the mechanism of bearing electrocorrosion
a kind of vehicle grounding circuit structure which could effectively suppress the bearing voltage of traction motor was simplified
and the corresponding grounding resistance was analyzed and determined. Simulation results show that the application requirements of standard metro train could be met according to serialization and simplification of traction system design. In addition
the products of different traction system suppliers could be installed compatibly and the main spare parts could be generalized
which also reduced the maintenance cost of operators.
关键词
地铁标准牵引系统牵引特性高压电路接地电路城市轨道交通
Keywords
metro vehiclestandardtraction systemtraction characteristicshigh voltage circuitgrounding circuiturban rail transit
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