在大功率晶体管逆变器——电动机驱动系统中,它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制,而且能快速地检测出故障电流。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
例如,它是常见的仍发现在电力基础设施UPS系统使用诸如相位控制scr和湿电池的成熟技术。
For example, it is common to still find UPS systems in electricity infrastructure using mature technologies such as Phase Control SCR and wet cell batteries.
相位裕量是控制系统设计的一个极为重要的参数。
Phase tolerance is an important parameter in designing control systems.
并针对非最小相位系统,提出了一般情况下控制规则基的设计原则。
The design principles of the control rule base under common conditions for non-minimum phase systems is proposed.
论述了由多片单片机构成的波控系统,因为波控系统的相位计算和控制是由软件实现的,所以这种波控系统具有简单、灵活的特点。
A beam steering system consisting of multiple single chip processors is described. It is simple and flexible because its phase calculation and control is implemented by software.
数字微波低电平系统用于控制超导腔的RF相位和幅度。
The digital LLRF system is used to control the RF phase and amplitude inside the superconducting cavities.
提出了几种适用于时滞及非最小相位系统的模糊pid智能复合控制算法。
The paper also refers several fuzzy PID intelligent composite control algorithms that are applicable to non-minimum phase system with time delay.
针对一类不确定的离散时间非线性非最小相位动态系统,提出了一种基于神经网络和多模型的直接自适应控制方法。
A direct adaptive control approach is proposed for a class of uncertain discrete time nonlinear non-minimum phase dynamical systems.
零相位误差跟踪控制器作为前馈跟踪控制器,提高了快速性,使系统实现准确跟踪。
Zero phase error tracking controller was served as the feed-forward controller to improve the fast tracking performance of the system, thus exactly tracking of the system was implemented.
并就总体设计中涉及的相位检测准则、定位器自由度的选择、控制方法以及系统稳定性等问题的解决方法作了专门论述。
The phase detection criterion, localizer freedom option, the way of control as well as the system stability mentioned in the system design are specially discussed.
传统SVPWM控制方式存在死区时间,使系统输出电压能力降低,出现相位偏差、波形畸变等现象。
Aiming at the phenomenon of reduced system output voltage capability, phase deflection and wave aberration of tradition SVPWM dead problem.
锁相环路是完成两个电信号相位同步的反馈控制系统,适宜于变流装置的同步触发电路之中。
The phase lock loop is a feedback control system that makes two telecommunication signals' phase synchronization, suitable to the synchronous trigger circuit of the convertor device.
提出了采用相位扫描方法加工变栅距(VLS)光栅的基本原理,给出了VLS光栅刻划机的控制系统,并通过刻划实验对这一新方法进行了验证。
The control system of the VLS gratings ruling engine is given also and a ruling experiment of the VLS gratings is made to examine the novel method.
实验结果表明:改变反馈控制的增益和相位角两个变量,能影响主动颤振抑制系统的稳定性。
The test results show that a change in two parameters-the gain and the phase Angle of the feedback control-will have an effect on the stability of the active flutter suppression system.
本文针对TCP网络系统的时滞特性,设计基于内模补偿控制器,提出了基于幅值与相位稳定裕度的控制参数整定方法。
The internal mode compensation controller is designed for the delay performance of TCP network system. The controller tuning method is presented based on the gain and phase margin.
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 beams pointing, tracking and combining can be realized quickly by means of the phase control of the synthetic aperture system.
全新聚束器计算机控制系用于实时控制聚束器系统,从而达到改变离子束流纵向相位空间,提高束流流强的目的。
The wholly new computerized buncher control system is an real time buncher system. It changes vertical phase space of the ion stream and enhances the intensity of the ion stream.
通过镜像映射将非稳定过程转换成最小相位系统,然后用闭环增益成形算法求解鲁棒控制器。
An unstable process is transformed into a minimum-phase system through mirror-injection, then solve the robust controller using closed loop gain shaping algorithm.
本文介绍了一种基于可变位置液压张紧器机构实现控制进气门关闭相位角的电控可变配气相位系统。
A new developed electrical control VVT system is presented which USES a tensioner with variable working position to change the intake valve-closing Angle.
在高功率激光系统,激光束小尺度相位畸变波前探测是实现激光束中频段波前补偿与控制的重要前提。
In high power laser system, a small size phase-distortion wavefront measure is necessary to compensate and control the wavefront of laser beam with intermediate frequency.
提出了零相位跟踪控制算法,使控制系统对给定非国特殊曲线具有很高的跟踪精度,从而保证了非圆轴类表面磨削加工精度。
An adaptive zero-phase tracking control algorithm is developed, and with which the servo system is able to track accurately a given non-circular high order special curves.
为同时抑制时滞及非最小相位系统的超、负调和加快系统响应,本文提出一种基于模糊推理的智能内模控制系统。
Aiming to decrease overshoot, undershoot and settling time of non-minimum phase system with time delay, this paper proposes an intelligent IMC control system based on fuzzy inference.
水轮机调节系统是非最小相位系统,是较难控制的一类系统。
The governing system of a hydraulic turbine is non-minimum phase system, and much difficult to control.
设计了以C8051F 060混合信号微控制器为核心的全数字信号检测系统,实现其采样信号和调制信号的相位关系保持。
An all digital signal detecting system using C8051F060 as its core was completed. It can maintain the phase relation of sampling signal and modulating signal.
锁相环路是一种能实现相位自动锁定的控制系统,主要用于频率合成及跟踪解调系统。
The phase- locked loop is one kind of control system which is able to achieve phase automatic lock, to compose frequency and to trace demodulation system.
该控制策略通过模拟交通指挥者实际进行交通控制的特点,使控制系统能够实时根据各相位车辆的多少进行信号的智能控制。
Through imitating the ways of traffic police managing the traffic, this signal control strategy has the ability of intelligent phase controlling in the light of the real traffic flow.
针对光伏并网发电系统,基于数字锁相环,研究了一种实现系统并网电流幅值、相位跟踪控制的新方法。
Based on a new digital PLL, a new current tracing control strategy for a grid-connected PV system was proposed to control the amplitude and phase of the inverter current.
传统电压控制模式的电机驱动电路系统频率都受电机的本征频率制约,其相位延迟会随负载的变化而变化。
The system bandwidth of conventional voltage-control-mode motor driver circuits is limited by the intrinsic frequency of the load, and its phase lag is also load-dependent.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
The phase-locked system is a closed loop automatic control system that can follow the frequency and phase of the input signals.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
The phase-locked system is a closed loop automatic control system that can follow the frequency and phase of the input signals.
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