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- subtransient stator current 起始瞬态定子电流
- This method is to control the stator current as a vector quantity on the basis of slip frequency control. 在这一控制方法中,定子电流在转差频率控制的基础上作为一个矢量进行控制。
- Simulation results showed that this control strategy can decrease the stator current anti improve the efficiency of the system. 仿真结果表明永磁同步电动机直接转矩控制系统最大转矩电流比控制可以降低定子电流,减小损耗,从而提高系统效率。
- It can realize automatic tracing and automatic mpensation so as to increase power factor of the motor,reduce temperatures of stator current and the motor. 该系统实现自动跟踪、自动补偿以达到提高电机功率因数,降低电机定子电流、电机温升等目的。
- When the motor is operated in low speed range, the stator current is discontinuous, and then the back emf can be detected directly while the stator current is zero. 当电动机操作在低转速范围时,定子电流为不连续,可在电流为零处,直接侦测反电势。
- In U-I model, the measurement of stator current will influence the EMF, and finally the magnitude and phase of flux, resulting in the inaccurate orientation, bad performance and instability. U-I模型中,定子电流的检测精度势必影响到电机反电动势的计算,最后影响磁链的大小和相位,导致磁场定向不准确,系统性能不好,工作不稳定。
- First, a simple rotor position estimating technique is presented.By measuring the stator current and compensating for the influence of the back EMF, the rotor position and velocity can be estimated. 首先,提出一种简单的转轴角度估测方法,经由侦测定子电流,并适当地补偿电动机的反电势的影响,即可准确估测永磁同步电动机的转轴角度与速度。
- This paper presents briefly the structure of a permanent type HTSC maglev vehicle model and analyses some exprimental results of levitation force, guidance force and stator current of linear motor. 本文简要地介绍了一辆永磁型高温超导磁浮模型车的结构,分析了不同冷却间隙时的悬浮力,导向力的试验曲线以及直线电机定子绕组电流波形。
- On the other hand, when the motor is operated in middle to high speed range, the stator current is continuous.The back emf can be computed.Finally, the rotor position can thus be obtained. 当电动机操作在中、高转速下,定子电流为连续时,可经由计算求出反电势,以获得电动机的转轴角度位置。
- Gears'Fault Diagnosis by Monitoring Stator Current 通过监测电机的定子电流实现齿轮的故障诊断
- Demand is outstripping current production. 现在需求逐渐超过了生产能力。
- She broadcasts on current affairs. 她发表时事广播演说。
- Our language goes current along the seacoast. 我们的语言通用于沿海一带。
- You may open a current account at a bank. 你可以在银行开立一个活期帐户。
- I'd like to open a current account with you. 我想在你们这儿开一个活期存款帐户。
- He made some comments on current topics. 他对时事问题做了若干的评论。
- Simulation of Speed Estimation Method for Induction Motors Using Stator Current 基于感应电机定子电流的速度估计算法仿真
- The swimmer was swept away by the current. 那个游泳的人被激流卷走了。
- He is interested in current affairs. 他对时事感兴趣。
- She had to swim against the current. 她必须逆著水流往上游。