一种双串励直流电机操动装置的研究

为研制具有自主知识产权的特大容量发电机断路器的隔离开关分合操动装置,研发了一种双串励直流电机驱动的大功率传动装置,该装置具备大扭矩输出且能够短时分合的操作能力。经试验研究结果表明,利用串励直流电机的软特性,采用双串励直流电机驱动、双蜗轮蜗杆传动、单轴输出的传动方式可以满足特大容量发电机断路器的隔离开关分合操动装置的技术要求。在保证操动装置串励直流电机输出转矩不变的情况下,通过降低串励直流电机转速可以消除因隔离开关分闸速度过快所引起的反弹现象。在控制回路中加入延时继电器,可以消除电磁离合器得电打滑的现象。

Research of a Type of Double Series-wound DC Motor Operating Device

In order to develop the disconnector operating device for large capacity generator circuit breaker with independent intellectual property rights,a pair of series-wound DC motor drive power transmission device has been developed,and the device has high torque output and short-time operation ability.The test results show that: the use of DC series motor soft characteristics,using double series-wound DC motor drive,double worm gear drive,single shaft output driving mode can meet the high capacity generator circuit breaker,disconnector with actuating device technical requirements.In the operating device DC series motor output torque unchanged case,through reducing the series excitation DC motor speed,the rebound phenomenon,which caused by the disconnector tripping speed,can be eliminated.Added a time delay relay in control circuit,the electromagnetic clutch electric slipping phenomenon can be eliminated.