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。
Note that the Change Control Rigor curve does not necessarily increase as rapidly in the Construction phase as the diagram depicts.
请注意:“变更控制的严格性”曲线并不一定如这张图表中所描绘的那样在构建阶段中如此快速地增长。
How to control and approve each phase.
如何控制和批准工程各个阶段。
Maintain each phase records of corrective and preventative actions by implementing the "Quality record Control Procedures".
保存纠正和预防措施各阶段的记录,执行《质量记录的控制程序》。
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。
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 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。
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。
Upon passing the study of approved feasibility, the project will enter the expenses control implementation phase.
工程项目通过批准的可行性研究后进入费用控制的实施阶段。
Targeted at these problems, the cost control method in the construction phase is proposed.
针对于这些问题,本文提出了施工阶段成本控制的方法。
But now, there are still many problems in the cost control during the construction phase for Chinese construction enterprises.
但目前我国施工企业在施工阶段的成本控制中还存在许多问题。
The air stripline feeding network is featured with low loss, high power capacitance, and it is easy to control its amplitude and phase.
空气板线馈电网络具有损耗小、耐功率高、幅相控制容易等特点而广泛应用于平面阵列天线中。
Control pulse is coupled into this pulse shaper by wavelength division multiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation.
该全光脉冲整形器利用波分复用器将控制光脉冲引入光纤环形镜中,控制光脉冲由于交叉相位调制在信号光上产生了非线性附加相移。
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。
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。
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。
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 utility model provides an AC voltage stabilizing regulator, which synthetically utilizes the AC voltage phase control method and the amplitude control method.
本实用新型提供一种交流稳压调压器,综合利用了交流电压相位控制法和幅值控制法。
Accordingly, by varying a duty ratio of power through a phase control using a temperature variation slope of a heating roller, a fine control of a fixing system can be performed.
因此,通过使用加热辊的温度变化斜率的相位控制来改变功率的占空比,可执行对定影系统的精细控制。
In this paper, we propose and discuss two new control methods for three phase shunt APFs: the sinusoidal line current control method and the instantaneous reactive power compensation control method.
本论文提出三相并联型有源滤波器的两种新的控制方法,即正弦波化控制和瞬时无功功率的控制方法。
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。
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。
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。
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。
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 result shows that inspection at site and feedback can effectively improve the control ability of speed perception in sliding phase.
结果表明,现场监测与反馈训练能有效提高运动员助滑速度知觉的控制能力;
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。
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。
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