舰船大负载起动电网瞬态电压降计算和分析

介绍了根据感应电动机电抗、感应电动机起动电流及起动千伏安等常用电网瞬态压降计算方法,分析比较了直接起动、星形-三角形起动及自耦变压器补偿起动等舰船电力系统常用三种起动方式的优、缺点,并以实例计算三种起动方式时的电网瞬态电压降,指出了根据计算的电网瞬态电压降,选择合适起动方式,控制舰船用大容量电力负载起动对电网的影响。

Calculation and analysis of instant voltage drop in high power starting electric network for naval ships

This paper introduces the calculation of instant voltage drop of electric network,such as reactance,starting current and starting kilovolt-ampere of induction motor.It also compares the advantages and disadvantages of three starting modes,direct staring,quinquangular-triangle starting and auto converter compensation starting,and their instant voltage drop are calculated based on examples.It indicates that appropriate staring mode can be selected and the influence of high power starting on electric network for naval ships can be controlled according to the voltage drop calculation.