The paper believes that the speed control by the rotor thyristor is simpler than and superior to that by a. c. stator voltage regulation.
文中指出转子可控硅调速较交流电动机定子调压调速简单、优越。
Introduces the saturation function into controller, reduces the wide-range switch of control gain, ensures the stability of stator voltage.
在控制器中引入了饱和函数，降低了控制增益的大幅切换，保证了定子电压的稳定性。
This scheme utilize the current vector space Angle to judge the three stator current polarity, deduce the three stator voltage compensations.
该方案通过电流矢量空间角判断感应电机三相定子电流正负，推导出三相定子电压的补偿量。
The approach, which takes the ratio of the stator voltage to current as the control criterion, improves the efficiency and power factor of asynchronous motors.
仿真计算及实验结果表明该控制方案可以使异步电动机在不同的负载下均呈现出较高的效率，并且兼顾提高功率因数。
The direct-axis or quadrature-axis stator voltage is used as manipulated variable and direct-axis or quadrature-axis stator current delay feedback is used for chaos control.
该方法以永磁同步电动机的定子交轴电压或直轴电压为控制量，利用电流的延迟反馈实现了混沌运动的控制。
This paper presents a new compensation method for stator voltage amplitude and DC offset, which can improve the performance of the speed sensor-less vector control of induction motor.
为了提高异步电机无速度传感器矢量控制的低速性能，提出了一种定子电压幅值和直流偏置补偿办法。
The presented phase Angle PWM method is centering attention on motor stator voltage space vector and controls the vector Angle to vary linearly and so reduces higher harmonics in voltage wave.
本文提出的角度PWM方法着眼于电机的定子电压空间矢量，使其矢量角均匀变化，减小电压波形中的高次谐波分量。
A stator voltage space vector forecast CRPWM control method based on uncoupled arithmetic is proposed by analyzing improved induction motor mathematics model. Control strategies are presented.
根据改进的电动机模型，推导出一种基于解耦算法的定子电压空间矢量预测CRPWM控制方案，给出其控制策略。
Widely used in large and medium-sized motor pressing, rotor, stator voltage and the stator silicon steel sheet positioning, forming and pressing, pressing, rolling, drawing large objects, forming.
广泛用于大中型电动机压装，提供转子、定子压装及定子矽钢片定位、成型的压装，以及大型物件的压制、压延、拉伸、成型。
The relationship between the dead-time voltage sector and the stator current sector is analyzed and a method for compensating the stator voltage sector is proposed based on the reconstructed current.
分析了死区电压矢量和定子电流矢量的关系，由此得到一种根据重构电流矢量来补偿定子电压矢量的方法。
This paper obtains a new speed-sensorless direct torque control scheme for induction motor based on calculating the stator flux vector increment to determine the stator reference voltage.
在直接转矩控制理论基础上，推导出一种基于定子磁链矢量增量来确定定子参考电压矢量的新型无速度传感器直接转矩控制方案。
The function of voltage vectors on the stator flux and torque is investigated.
并且具体分析了电压矢量对转矩和磁链的作用。
Then a voltage vector control scheme for induction motors based on constant stator flux is presented and it's nonlinear limitations are analyzed.
结合定子磁链控制，提出异步电机基于定子磁链幅值恒定的电压矢量控制方案，并对该方案的非线性局限进行了分析。
Based on the analysis of control strategy of the system, this paper used respectively voltage oriented and stator flux oriented vector control in grid side and rotor side of the converter.
在分析了该系统控制方法的基础上，建立了交直交变频器网侧电压定向以及转子侧定子磁场定向的矢量控制系统模型。
A sensorless control strategy for permanent magnet synchronous motors is presented based on the measurement and observation of stator current, voltage and flux vector.
根据测量和观测的定子电流、电压和磁链，提出了一种永磁同步电动机无传感器控制方案。
To solve these problems, a modified method is presented, which subdivides the voltage vector sectors and switching signal selection table, and optimized stator flux compensating voltage.
针对上述问题，给出了一种通过细化电压矢量合成扇区和开关信号选择表，优化定子磁链补偿电压的改进方法。
Furthermore, a checkout method for the third harmonic voltage based protection scheme of stator ground fault in generators is presented based on the verified MLM-FEM coupled model.
进而提出了基于多回路-有限元耦合数学模型的同步发电机定子单相接地故障三次谐波电压保护方案校验方法。
The dynamic braking means that after three-phase voltage is switched off asynchronous dynamo the dc current flows into the stator circuit to realize dynamo braking.
能耗制动是在异步电动机切离三相电源后，在定子回路通入直流电流，实现能耗制动。
The requirement for leakage reactance on stator of PMSM supplied by voltage type inverter is analyzed, and some parameters are selected, such as electromagnetic load, slots shape of stator and so on.
分析了电压型逆变器供电的永磁同步电动机对定子漏抗的要求，确定了电磁负荷以及定子槽形等参数的选取原则。
A calculating method on each power losses and stators voltage and current of asynchronous motors is given, which is operated in reducing stator losses voltage.
给出了一种计算异步电动机降压运行时各损耗功率及定子电流电压的方法。
The limit conditions for the end voltage of the induction machine are derived, according to the asymmetric condition of the machine stator winding.
考虑感应电机定子绕组接线的不对称情况，推导出电机端电压的约束条件。
It is discussed the relation between space voltage vector and stator flux.
讨论了空间电压矢量与定子磁链之间的关系。
Energy saving of a water injection system can be achieved by regulating the speed of the electromotor through changing the input voltage of the motor's stator.
电动机调端电压调速是通过改变电动机定子端电压来实现调速的方法。
Finally, the stator resistance effect of rotor position estimation in high frequency voltage signal injection is investigated.
最后，探讨了旋转、脉动高频电压信号注入法下定子电阻对转子位置估算影响的问题。
The stator winding of power frequency withstand voltage test.
定子绕组做工频耐压测试。
The stator flux is estimated by adaptive compensated voltage model, and the speed is estimated with PI adaptive method.
系统采用具有自适应补偿的电压模型估算定子磁链，PI自适应法估计转速。
In a direct torque fuzzy control system of electric vehicle, when the voltage model is used as stator flux observer, the system's low speed performance becomes poor.
电动汽车直接转矩模糊控制系统中，定子磁链观测器采用电压模型时，系统低速性能变差。
The direct-current leakage test is implemented by using the microampere shielded in low-voltage, and the leakage current increasing of generator stator winding abnormally is detected.
采用低压屏蔽法对发电机定子绕组进行直流泄漏试验，发现泄漏电流异常增大。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
本文研究了三相感应电动机软起动器，主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角，可降低三相感应电动机定子电压，从而达到抑制起动电流冲击的目的。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
本文研究了三相感应电动机软起动器，主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角，可降低三相感应电动机定子电压，从而达到抑制起动电流冲击的目的。
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