离散变频技术在矿用3.3 kV大功率软起动器中的应用  

Application of Discrete Frequency Conversion Technology in 3.3 kV High Power Soft Starter Used in Mine

作　　者：赵宇杰 Zhao Yujie(Meiyukou Coal Mine of Jinneng Holding Coal Industry Group Co.,Ltd.Datong Shanxi 037003)

机构地区：[1]晋能控股煤业集团煤峪口矿,山西大同037003

出　　处：《同煤科技》2021年第2期24-26,29,共4页Datong Coal Science & Technology

摘　　要：用离散变频软起动控制法控制软起动器可控器件的导通与关断,既可以调整输出电压,又可以调整输出频率,保持一定压频比。试验数据表明,离散变频软起动控制方法可以在减小电机起动电流的同时输出较大的起动转矩。In this paper,the discrete variable frequency soft start control method is used to control the turn-on and turn-off of the controllable device of the soft starter.It can adjust the output voltage and the output frequency to maintain a certain voltage frequency ratio.The experimental data show that the discrete variable frequency soft start control method can reduce the starting current of motor and output larger starting torque at the same time.

关 键 词：离散变频 起动转矩 起动电流 电压 频率 

分 类 号：TD634[矿业工程—矿山机电] TM573[电气工程—电器]