调速时间 meaning in Chinese

governing time

Traditional direct torque control uses two value torque regulator which makes zero voltage vector work long and make flux shape bad seriously and makes response time long when the speed of induction motor is very low or drops down quickly . in order to solve this problem the thesis puts forward a new way to use three - value torque regulator , when the motor speed is very low or drops down quickly , the contrary voltage vector is used instead of zero voltage vector and the between the stator flux and rotor flux is reduced quickly so that torque is reduced quickly and response time becomes shorter
为此，本论文提出三点式转矩调节，这样当电机低速运转或给定转速突降时，不是加零电压矢量，而是加反方向的电压矢量，使定子磁链与转子磁链之间的夹角迅速减小，从而使电磁转矩也迅速减小，大大减小了调速时间，同时磁链值仍然保持基本恒定，输出比较稳定的电磁转矩，这在电机制动过程中非常有用。