本文我们以基于磁通控制的可控电抗器作为研究对象，研究它在无功补偿中的应用。
In this paper, we select controllable reactor based on magnetic flux adjustable as our research object, study its application in reactive power compensation.
首先建立了基于磁通控制的可调电抗器的通用数学模型，说明了可调电抗器的基本原理。
First, a mathematic model of adjustable reactors based on the magnetic flux control is established and a deep analysis is made.
改变励磁电流的大小和方向可以控制直流磁通的大小和方向。
The magnitude and direction of this magnetic flux can be controlled in agreement with the magnitude and direction of the field current.
在低速范围内，对无传感器感应电动机进行矢量控制时用定子电压和电流推算转子磁通是比较困难的。
The sensorless of induction motor field-oriented control employing stator voltages and currents has difficulty in estimating rotor flux in the low-speed range.
介绍一种运用单片微机进行磁通轨迹控制的电压型GTO逆变器变频调速系统。
The authors introduce a voltage-source GTO inverter VVVF system with flux linkage locus controlled by single-ship microcomputer.
而基于磁通反馈的悬浮控制能很好地解决这些问题。
异步电功机的磁通检测和观测是矢量控制系统中的关键问题。
The measurement and observation of flux in induction motor is a key problem in vector control system.
在全速范围内分段进行恒磁通和恒电压恒功率控制，得到控制下的转矩—转速特性曲线。
Full speed within sections of constant flux and constant voltage constant power control, we can get the torque - speed characteristics under the control.
将该方法和著名的直接磁场定向控制(FOC)和定子磁通矢量控制(SFVC)进行比较。
This method is compared to the well-known direct field-oriented control (FOC) and stator flux vector control (SFVC) methods.
设计磁通反馈与悬浮间隙的PD控制器，并根据磁悬浮列车特点，给出磁场测量方法。
The PD controller of suspension gap and flux feedback is designed. The magnetic field measurement method is given based on the characteristics of the maglev train.
建立以磁场强度为状态变量的单悬浮电磁铁刚体模型，分析磁通反馈控制下系统的稳定性。
The rigid body model of single suspension magnet are established with flux density as state variable and the system stability is analyzed with flux feedback control.
该系统主回路为高低高结构电流源型变频器，采用单片机为核心的数字控制器，其控制策略采用转子磁通定向直接矢量控制。
This system is a high low high CSI, of which controller is based on a single chip computer. The control strategy adopts vector control.
借助磁通反馈环节控制磁化电流扫描速度，使得产生的感应电压接近常数。
With the help of the sweeping velocity of magnetizing current controlled by a flux feedback loop a nearly constant induced voltage is produced.
但由于该系统是磁通开环控制的，因此，系统动、静态性能对参数变化较敏感。
But its open loop compensation technique makes the dynamic and steady performances parameter sensitive.
上述原理表明，通过改变直流励磁电流，可以连续地控制HSY的气隙磁通和绕组感应电压。
The above principle suggests that the gap flux and the voltage induced in armature winding of HSY can be controlled adequately and continuously by varying dc field current.
研究了一种基于磁通控制原理的电感和电阻连续可调的有源电抗器。
A new kind of an active reactor with continuous adjustable inductance and resistance is studied based on the magnetic flux control theory in this paper.
通过控制轧制、控制冷却，可提高钢的强度、而不损害钢的磁通密度。
By controlling hot rolling temperature and cooling rate, the strength of the steel can be increased while the magnetic flux density will not be affected.
直接转矩控制的感应电动机的速度控制需要有效地建立定子磁 通。
Speed control of direct torque controlled(DTC)induction motor drives depends on effectively establishing the stator flux.
变频调速根据其不同的负载性质，采用的控制方法也不同，通常分为恒磁通调速和恒功率调速。
Converter governor, in accordance with various loading natures, employs different control means. It is usually divided into constant magnetic f...
对单铁悬浮控制模型，采用基于磁通反馈的间隙PID控制算法，通过合理选取控制参数可以达到良好的控制效果。
For the single maglev suspension model based on flux feedback and clearance PID, it can achieve excellent performance by choosing proper control parameter.
对单铁悬浮控制模型，采用基于磁通反馈的间隙PID控制算法，通过合理选取控制参数可以达到良好的控制效果。
For the single maglev suspension model based on flux feedback and clearance PID, it can achieve excellent performance by choosing proper control parameter.
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