And it presents a novel digital phase-control method based on three-phase thyristor voltage regulation by micro-computer.
给出了一种以单片机为核心的三相晶闸管交流调压的数字移相控制方法。
Because in sintering furnace the ac voltage controller with thyristor phase-control technology is used, so it is a typical harmonic-producing load.
烧结炉采用了晶闸管相控交流调压技术,属典型的谐波源负荷。
At present, in the field of power electronics applications, most of the drive systems of AC motors use diode rectifiers and phase-control thyristor rectifiers.
目前电力电子应用领域中,绝大多数的交流电动机驱动逆变器前级都采用了二极管整流器或晶闸管相控整流器。
The planning and control phase can be divided into activities for planning and activities for control.
计划和控制阶段可以被分为用于计划的活动和用于控制的活动。
This exact control of optical phase is based on a unique combination of negative and positive refractive indices.
精确得控制光子相位是基于独特得组合负和正的折射率器件。
This phase uses instrumentation and control points in the ESB run times, as well as mediations that observe and affect the flow of messages.
此阶段将使用ESB运行时中的检测和控制点、以及观测和响应消息流的中介。
Table 1: the RUP step, Define Evaluation Mission, "shows many similarities to the planning activities from TMap's planning and Control phase."
RUP步骤,定义评价任务“显示了许多与TMap的计划和控制阶段的计划活动相似处。”这些相似处在表1中很明显。
In the second phase, each login module commits the outcome of its login, updating the JAAS Subject of the current access control context with credentials acquired during the login phase.
在第二个阶段,每个登录模块提交它的登录的结果,用在登录阶段获取的凭证更新当前访问控制上下文的JAAS Subject。
We do not yet know how to achieve the desired control during the aerodynamic phase of flight.
我们只是还不知道怎么在航行的空气动力学方面,对飞机实现需要的控制。
The new phase will extend this to pitch and yaw for all-axis control.
后面的阶段,将进一步延伸到飞机倾斜和偏航时翻滚轴的控制。
Global English has entered a more complex phase, changing in ways that the older English-speaking countries cannot control and might not like.
全球英语已进入一个更为复杂的阶段,以一些老牌英语国家无法控制、可能也不喜欢的方式不断变化着。
Women's visits to psychiatrists, counsellors and astrologers increase dramatically during this phase and many women feel that they are 'losing control' or 'going crazy '.
女性在此期间咨询精神病医生、心理顾问和占星家的次数明显增多。而且此时,许多女性觉得自己处于“失控”或“发疯”状态。
The third phase of the project to prevent and control geological disasters in the Three Gorges Reservoir area was carried out smoothly.
三峡库区三期地质灾害防治工程顺利实施。
The optimum phase control code for beam pointing increases accuracy of beam pointing obviously.
利用这种控制码,波束指向精度提高了一个数量级。
Phase control operations in light dimmers, motor speed controllers, and similar.
在调光器的相位控制操作,电机速度控制器,和类似的应用。
The effectiveness of the swing phase control has been shown by experiments.
实验表明这种控制方法是有效的。
The beams pointing, tracking and combining can be realized quickly by means of the phase control of the synthetic aperture system.
利用光束的合成孔径系统,通过控制子孔径系统发射光束的相位,可以实现光束的快速瞄准、跟踪及合成。
The experimental results show that the pulse shifting phase control by using software can improve effectively the pulse symmetry and the precision of the d. c. output voltage.
实验结果表明,采用微机软件实现脉冲移相控制,可有效地改善脉冲对称度,提高整流输出电压精度。
These may be required where harmonic currents caused by the thyristor phase control of the reactor current must be filtered to prevent unacceptable transmission bus voltage distortion.
这里须滤去由电抗器相位控制引起的谐波电流以避免不能接受的输电母线电压畸变。
The method of finite state machine together with PWM circuit is given to realize the algorithms of Voltage Space Vector control and 120 electrical Angle changing phase control of DC brushless motor.
针对电机空间矢量控制和直流无刷电机120电角度换相控制算法的电路实现,采用了控制状态机与PWM发生电路相结合的方法。
It analyzes the circuit principle of the system, amplitude control method, phase control method and realization of the power factor control.
分析了系统的电路原理、幅值控制、相角控制及功率因数控制的实现方式。
In this paper the phase noise is introduced from phase control at first, then the phase noise is analyzed and given a new solution to the vector of it.
先从相位控制出发导出相位噪声,并就相位噪声进行了分析,给出了相位噪声矢量的一种新的求法。
Position, speed, torque, and phase control such as electronic gearing and electronic cam profiles are available for complex motion.
位置、速度、扭矩和相位控制,如电子传动装置和电子凸轮轮廓在复杂的运动中也可以获得。
Experiments of the phase control null and random phase quantization in density weighted phased arrays are described.
叙述了在密度加权相控阵上进行的随机馈相和波束置零实验。
In the system design FPGA slug as a key device realizes digital phase control of high intensity focused ultrasound through base software programming.
在该系统设计中,以FPGA芯片作为核心器件,通过底层软件编程实现高强度聚焦超声的数字化相位调控。
Ultrasonic phased array technology USES an array of ultrasonic transducer array element for each phase control, access to flexible and controllable synthesis of beam.
超声相控阵技术通过对超声阵列换能器中各阵元进行相位控制,获得灵活可控的合成波束。
The small control is adopted also in the phase control and the best phase matching between the control signal and the unstable periodic orbit is reached. Then the best effect of control is got.
外激励相位控制采用微小信号控制并使控制信号与系统的不稳定周期轨道达到最佳相位匹配,获得最佳控制效果。
A method and an apparatus to control power supplied to a heating roller and a phase control circuit corresponding to the method or the apparatus.
一种用于控制提供到加热辊的功率的方法和设备及相应于该方法和设备的相位控制电路。
The solution on clock synchronization composes with GPS, operation maintenance, software locking phase control. And the last one is researched specially, and some test data are given.
本时钟同步管理方案由GPS通信模块、操作维护、软件控制管理三部分组成,重点研究了软件锁相控制算法,并给出了测试数据。
The solution on clock synchronization composes with GPS, operation maintenance, software locking phase control. And the last one is researched specially, and some test data are given.
本时钟同步管理方案由GPS通信模块、操作维护、软件控制管理三部分组成,重点研究了软件锁相控制算法,并给出了测试数据。
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