In order to improve the energy utilization of regenerative braking of power supply arm in heavy haul railway,realize balanced power supply,compensate reactive power and harmonic,and suppress negative sequence,balanced power supply device has become the focus of heavy haul railway in recent years,and the transformation projects of adding balanced power supply device in existing traction substation are increasing day by day.Combined with the practical application and experience of the balanced power supply system in a traction substation on a large line,this paper analyzes and discusses the engineering design and application scheme of the balanced power supply system,including main wiring,general layout,lightning protection scope accounting,traction network side protection configuration and fixed value calculation,and puts forward the key points of the engineering design of the balanced system transformation and suggestions of the transformation scheme.
关键词
重载铁路/平衡供电/工程化设计
Key words
heavy haul railway/balanced power supply/engineering design