The low. speed range comes to 30 percent of synchronous speed of the machine.
低速工作转速范围达同步转速的30％。
The efficiency of PLC control is increased at high speeds up to 95% of the synchronous speed.
PLC控制效率在同步速度达到95%时提高不少。
The effectiveness of the PLC-based control software is satisfactory up to 96% of the synchronous speed.
基于PLC的控制软件的工作效率可达同步速度的96%，非常令人合意。
Their design is optimized for synchronous speed direct drive applications thus avoiding unnecessary and expensive construction features.
在设计上对同步直接驱动的应用进行了优化以避免不必要以及昂贵的工程设计。
Its rotor's change changes same as the rotary field, but the rotational speed slightly is higher than the rotary field the synchronous speed.
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。
According to the features of the carpet washes drying machine, a synchronous speed controls system based on PLC and the swinging arm compensator was introduced.
根据铁路客车地毯清洗干燥机的工艺特点，研制了一种用PLC和摆式松紧架实现的同步控制装置。
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。
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.
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 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.
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。
According to the requirements of synchronous speed control of series conveying belt, several patterns which could realize the synchronous speed control under frequency conversion was analyzed.
针对多级胶带输送机同步运行要求，分析了胶带机变频拖动同步运行实现的几种模式。
Benchmark tests comparing cached thread pool performance show that the new nonblocking synchronous queue implementation offers close to three times the speed over the current implementation.
比较缓存线程池性能的对比测试显示，新的非阻塞同步队列实现提供了几乎是当前实现3倍的速度。
At one level, this means things such as synchronous and asynchronous communications, routing, transformation, high speed distribution of data, and gateways and protocol converters.
在一个层次上，这意味着数据的同步和异步通信、路由、转换和高速分布、以及网关和协议转换器等等。
The newly designed backstepping control is implemented for permanent magnet synchronous motor (PMSM) to track speed commands, at the same time the design can provide better speed tracking performance.
设计的反推控制可以实现永磁同步电动机速度跟踪控制，保证系统具有良好的速度跟踪性能。
The speed is based on the synchronous motor speed reduction ratio as a benchmark calculated by dividing the value of.
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 doffer is driven by an inverter and a synchronous toothed belt which permits stepless variations of the speed.
道夫采用变频电机，同步齿形带传动，实现无级调速。
The synchronous sensor and velocity sensor for High Speed Rotating- Mirror Streak Camera are described.
论文介绍了高速转镜式条纹相机高性能同步传感器和速度传感器。
Their heavy duty design is suitable for both synchronous and high speed operation.
其重型设计适合于同步和高速的工况条件。
A nonlinear speed controller for permanent magnet synchronous motor based on adaptive backstepping control was designed, which USES second-order filter to smooth the speed reference.
设计了一种基于自适应反步控制的永磁同步电动机非线性速度控制器，采用二阶滤波环节平滑速度指令。
The characteristics of circuits concerning speed and power are compared between the synchronous divider and the asynchronous divider.
比较了同步分频器和异步分频器，表明了异步分频器在高频应用中的特点。
The speed, of response of the synchronous condenser is greatly influenced by the effective time constant of the field, which is typically 2-3 seconds.
同步调相机的响应速度受励磁磁场时间常数影响很大，时间常数一般为2—3秒。
A sensorless vector control method for permanent magnet synchronous motor (PMSM) drive at very low speed was presented.
介绍了一种极低速段永磁同步电机无速度传感器矢量控制方法。
Through analyzing its work principle, we find the method to raise the speed: use a novel CMOS dynamic D flip-flop and an improved synchronous frequency divider.
分析了双模前置分频器的工作原理，提出了提高其工作速度的方法，包括给出一种新型高速CMOS动态D触发器的设计以及同步分频器的改进。
The feasibility of designing controller for control permanent-magnet synchronous motor speed is proposed by using differential geometry theory.
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 hardware system can acquire all the signals especially the synchronous data acquisition of vibration and speed signals.
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 principles, structure and characteristics of an embedded dual speed GPS synchronous acquisition recorder is described.
介绍了GPS同步的嵌入式双速暂态信号录波装置的原理、结构及其特点。
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.
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。
Generally speaking, in the PMSM (Permanent-magnet synchronous motors) control system, mechanical sensor on the rotor shaft is required to detect the position and speed of the rotor.
一般来说，在电动机调速控制系统中需要在转子轴上安装机械传感器，测量电动机的速度和位置。
This paper present a fuzzy control strategy of high speed permanent magnet synchronous motor for precision grinder.
将模糊控制引入精密磨床的高速永磁同步电动机驱动系统速度控制中。
So the saturated steady operation mathematical model of pulsating magnetic field PM low speed synchronous motor is constructed under phase coordinate system.
脉振磁场永磁低速同步电动机是一种新结构原理的永磁同步电动机。
Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.
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。
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