It is presented in the paper that SIN subdivide microstep driving system with microprocessor controlled for three phase hybrid stepping motor synthesises both software and hardware.
本文提出了一种单片机控制的软硬件结合的正弦波细分的三相混合式步进电动机微步驱动系统。
Experiments show that the motor phase current controlled by this kind of SPWM inverter can be strictly sinusoidal and the running of the motor can remain steady for the ultra low speed range.
实验结果表明，这种SPWM逆变器控制的电机相电流严格正弦，能在超低速下平稳运行。
As an example, calculations are made for the three phase induction motor controlled by the bidirectional triode thyristor.
并以双向可控硅控制的三相异步电机为例，进行了具体计算。
Meanwhile, the downhole motor and MWD are not affected and wellbore trajectory can be controlled because of the continuous fluid phase flow throughout the bore hole.
同时由于从井口到井底始终存在着连续的液相流，常规井下动力钻具和随钻仪器的性能不受影响，可以进行正常的井眼轨迹控制。
The paper introduces an integrated protection device of three-phase motor controlled by SCM 89c52, which realizes integrated and intelligent controlling of electric motor.
本文设计了用单片机89c52控制的三相电机综合保护装置，实现对电动机的综合智能控制，有效解决目前电动机保护单一的问题。
By using the algorithm, phase-controlled rectifier with phase sequence and phase self-adaption is designed, which is used in a motor drive device.
最后根据该算法设计了相序相位自适应相控整流器，并用于电机调速装置中。
This paper presented a thyristor controlled single-phase to three-phase converter suitable for driving an induction motor with a single-phase AC supply.
提出一种单相电源供电时适用于异步电机传动的单相–三相变换器。
A new type single-phase permanent-magnetic stepper motor is designed and manufactured. It realizes the stepping rotating action controlled by the inputting electric pulse's on-or-off point.
设计并制造了一种新型的永磁式单相单拍运行步进电动机，它能在单极性电脉冲的控制下实现连续的起动和步进运动，电机绕组通电和断电时各转动一个步矩角。
A new type single-phase permanent-magnetic stepper motor is designed and manufactured. It realizes the stepping rotating action controlled by the inputting electric pulse's on-or-off point.
设计并制造了一种新型的永磁式单相单拍运行步进电动机，它能在单极性电脉冲的控制下实现连续的起动和步进运动，电机绕组通电和断电时各转动一个步矩角。
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