低速工作转速范围达同步转速的30％。
The low. speed range comes to 30 percent of synchronous speed of the machine.
转速是以电动机的同步转速为基准除以减速比而算出的数值。
The speed is based on the synchronous motor speed reduction ratio as a benchmark calculated by dividing the value of.
其转子的转向和旋转磁场的转向相同，但转速略高于旋转磁场的同步转速。
Its rotor's change changes same as the rotary field, but the rotational speed slightly is higher than the rotary field the synchronous speed.
所连接的直流电动机可以这样调整使得其转速高于同步转速且旋转方向与定子旋转磁场的方向一致。
The coupled dc motor can be adjusted so that the speed of the system is higher than the synchronous speed and the system rotates in the same direction as the stator rotating field.
交流变频调速系统是利用异步交流电动机的同步转速随频率变化的特性，通过改变电机的供电频率而进行调速。
Because the AC asynchronous motor 'synchronous speed is determined by the frequency, we can control the AC asynchronous motor' speed by changing the supply power's frequency.
交流变频调马达，数码式泵转速(rpm)显示功能，便于精确控制马转速，易于设定和保持与生产线速同步转速！
Variable AC drive with independent digital R. P. M. readout for pumps offers precise control of AC motor speed, easily to set and maintain application speed tailored to line speed.
直驱永磁同步风力发电机运行转速低，一般定子外径都比较大。
Direct-driven PMSG works at low speed and its size is generally big.
对采用微分几何方法设计永磁同步电机转速控制器的可行性进行了研究。
The feasibility of designing controller for control permanent-magnet synchronous motor speed is proposed by using differential geometry theory.
同步电动机不但功率因数高，而且其转速与负载大小无关，只决定于电网频率。
Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.
硬件系统已能满足各类信号的获取，尤其是阶次分析所需的振动、转速信号同步获取。
The hardware system can acquire all the signals especially the synchronous data acquisition of vibration and speed signals.
在转速同步传感器的配合下，该传感器可以实时测量所有叶片的叶尖间隙。
With the help of rotation synchronized sensor, it can measure all the blade tips in real-time.
摘要：旋转机械测试中，振动信号通常是随机非稳态信号，必须进行振动和转速信号同步分析。
Absrtact: in rotary machinery test, vibration signal is stochastic and uncertain usually, so, synchronous analysis of vibration and instantaneous rotational speed in the rotary machinery is necessary.
控制系统可以单独控制电机的转速和无功功率，使其工作在超同步、亚同步、转子电流量最小和全补偿工作方式下。
The machine can be operated in sub-synchronous, super-synchronous speeds, minimum rotor current and full compensation when adjusting the speed and reactive power independently.
同步期间，电机运行在稳态时的恒定转速和频率下。
The term synchronous refers to the fact that this type of machine operates at constant speed and frequency under steady-state conditions.
首先对磁场定向控制理论进行了详细分析，比较后采用间接磁场定向的控制方法，并建立基于同步电流内环、转速外环的双闭环控制结构。
Finally, the indirect vector control system is made as the research target and double close loop control systems which contain synchronous current inside loop and speed outside loop are introduced.
研究了一种宽转速范围内稳压的组合转子同步发电机。
A new type generator with hybrid rotors was studied, which operated constant voltage over a wide rang of speeds.
普通永磁同步发电机由于励磁不可调，端电压随转速或负载变化而变化，影响了供电品质。
The terminal voltage of a common permanent-magnet generator varies with its rotating speed and load due to its constant permanent-magnet flux, which resulting in unstable quality of power supply.
为解决永磁同步电动机弱磁问题，提出了一种能够跟随转速自动调节励磁磁阻的新型永磁同步电动机。
A permanent magnet synchronous motor (PMSM) with controllable exciting magnetic flux is presented which provides a new approach for solving the problem of flux weakening for PMSM.
因此，永磁同步电动机转子-轴承系统临界转速计算是一个典型的机电耦合问题。
Therefore, the calculation of critical speed of anisotropic supporting rotor-bearing system of the PMSM is a typical mechanical and electrical coupling problem.
由于同步发电机的原动机转速和发电机电压的耦合关系，使设计者在设计励磁系统的同时不得不考虑转速控制。
Since the original motive of synchronous generator speed and excitation voltage coupling relations, the excitation system designers at the same time have to consider speed control.
该装置的柴油机及燃气轮机功率、转速及负载转换控制、自动同步离合器的动态性能指标等是影响舰船机动性和操纵性的重要因素。
The dynamic performance of Synchronous-Self-Shifting clutch is of great importance to the control on transmission of power, rotation speed and load.
在分析转速变化规律的基础上提出动量轮转速控制指导方案，并将其应用在实际三轴稳定地球同步卫星长期管理中，取得良好的控制效果。
Based on the disciplinarian, we set up a controlling MW scheme which has taken good effect in secular management for three-axis stabilized GEO satellites.
结果表明，在启动时电机的转速和转子的转速是不同步的；
The results show that the rotating speeds of the motor and rotor are not synchronal during starting up.
对三轴稳定地球同步卫星中用于姿态控制的偏置动量轮转速变化问题进行研究。
This paper researches the variation of the Momentum Wheel(MW) rotation rate which is applied to attitude control in three-axis stabilized GEO satellites.
而目前转速测试，硬件实现复杂，实时性差，且不易实现对多路信号同步高速处理。
But, the hardware of present rotational speed test system is complex, real - time performance is not good, and which can not process multi - channel signal fast.
电机驱动，并装设有同步器，配合定速驱动滚轮组同步运转，可依各种涂料特性及膜层来调整各滚轮之转速。
This machine is drived by DC motor and gets a synchronizer. The rotator speed can be adjusted according to the lacquer character and film thickness.
电机驱动，并装设有同步器，配合定速驱动滚轮组同步运转，可依各种涂料特性及膜层来调整各滚轮之转速。
This machine is drived by DC motor and gets a synchronizer. The rotator speed can be adjusted according to the lacquer character and film thickness.
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