两种大型电动机起动方案比选

COMPARISON BETWEEN THE START-UP SCHEMES FOR TWO LARGE-SCALE ELECTROMOTORS

介绍了负载换相型变频器起动大电机和多功率单元串联变频器起动大电机两种方案,并从系统结构、技术特点、功效、对电网的影响,经济性及应用性等多角度,结合石化行业工程上的实际应用,对比两方案,得出综合性的结论。

This paper introduces the start-up schemes for two large-scale electromotors which use load-commutated inverter and multi-power series-wound inverter respectively.It makes a comparison between these two start-up schemes from system structures,technical features,function,impact on the grid,economic applicability and practical application in petrochemical industry.And finally,the paper arrives at a comprehensive conclusion.