文中首先简要介绍了这种两相励磁系统的结构,然后提出了两相励磁下SRM的磁链模型。
After a brief introduction of the two-phase excitation scheme, the flux linkage model of a SRM under two-phase excitation is developed using FEA.
实现实际转子磁链定向矢量控制系统的关键是磁链模型的计算精度和环路PI调节器的正确整定。
The key to realize a practical rotor field oriented vector control system of inductive motor is both the calculative precision of flux model and the adjusting of PI regulator.
然后,通过对DTC系统进行数学分析和实验研究,归纳了DTC的特点,分析了磁链模型中参数变化的影响。
After analysis and experiments on DTC system, the disadvantages of DTC are summarized. Also sensitivities between parameters and control character are analyzed based on each type of flux model.
最后本论文提出了一种改进的磁链模型,引入了单神经元网络PID控制器来调节定子磁链,并建立了相应的磁链模型。
Finally, this paper presents an improved model of the magnetic chain, using a single neural network PID controller to adjust the stator flux, and set up the corresponding flux estimation model.
由于考虑了温度对定子电阻阻值的影响,提高了u-i模型在低速运行时磁链观测的准确度。
U-I flux linkage model can be set exactly at low speed for considering the effects of temperature to stator resistance.
电流模型是转子磁链定向控制的关键,这里对其进行了离散化分析。
Current model is the key part in the rotor flux linkage oriented control system, and its discretization analysis is conducted.
考虑到U - I模型磁链观测器含有纯积分电路,会带来两个问题:一是直流漂移误差,二是积分初值误差。
Because in U-I model flux observation pure integration element is adopted, it brings about two problems of DC drift error and initial integration error.
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。
The stator flux is estimated by adaptive compensated voltage model, and the speed is estimated with PI adaptive method.
仿真结果表明,这两种模型能够快速准确地估计在负载变化条件下感应电机的转子磁链。
The simulation results show that the models can instantaneously and accurately estimate the rotor flux magnitude of an induction motor under a variety of load conditions.
根据矢量控制理论和自动控制原理,建立了转子磁链定向的双馈异步电动机电流模型矢量控制系统。
Based on the theory of vector control and automatic control system, the vector control system of current model for doubly-fed asynchronous machine with field-oriented rotor was established.
但是间接矢量控制系统对电机参数具有依赖性,因为它利用电机的模型参数来获取转子磁链。
But it is machine parameters dependent since the model of the machine is used for flux estimation.
可调模型包含电机转速的信息和一个电流模型转子磁链观测器。
The adjustable model contains the information of rotor speed and a current model rotor flux observer.
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。
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.
该文首先对变压器磁链进行理论推导,然后建立变压器和CT模型进行仿真,并通过实验验证结果。
In this paper, the flux of the transformer is obtained by theoretical derivation, then models of transformer and CT are built for simulation, and an experiment is done to prove the results.
文章分析了永磁同步电机直接转矩控制系统的电压空间矢量选择和磁链估计模型,并提出了系统的实现方案。
This paper analogy the selection of voltage space vector and the flux linkage estimate model of the direct torque control system of PMSM, and the realizing project of the system.
目前,在直接转矩控制中大多采用电压模型来估算定子磁链。
At present, the flux estimation based on voltage model is widely used in direct torque control system.
本文首先介绍了异步电动机直接转矩控制的基本原理,从异步电动机的数学模型入手,逐步分析,从而得到磁链和转矩。
The thesis introduces the basic principle of Direct Torque Control on asynchronous motor. In the beginning, stator flux and torque can be got through a typical mathematics model of asynchronous motor.
为了实现永磁同步电动机参数的在线实时估算,提出了一种在同一模型中对电阻、电感和永磁磁链进行辨识的自适应辨识方法。
In order to estimate parameters of permanent magnet synchronous motor (PMSM) on-line and real-time, an adaptive on-line identification method for motor parameters is proposed.
针对感应电机无速度传感器磁场定向控制系统,提出一种基于电压模型的改进转子磁链观测方法。
An improved rotor flux estimator based on voltage model was proposed for speed sensorless field-oriented vector controlled induction motor drives.
通过试验观察,提出了基于磁性链上磁液表面张力的磁流体密封模型。
The model of magnetofluid seal based on the surface tension of magnetofluid on the magnetic chains was deduced with some experiments related.
在该分析模型的基础上,推导出了电机绕组满足的以绕组磁链为状态变量的微分方程,建立了电机稳态运行分析的数学模型。
Based on the model, a steady state analysis model of the translational motor is founded with the state equations established which takes the flux linkages of the phase windings as state variable.
为了提高舰船综合电力推进系统的性能,推导了十二相同步电动机直轴气隙磁链观测器的模型,籍此构建了十二相同步电动机矢量控制方案。
The electrical drive system performance was improved using a model of the direct-axis magnetizing flux linkage space-phasor to develop a vector control scheme for the 12-phase synchronous motor.
本文首先介绍了异步电机直接转矩控制的基本原理,从异步电机的数学模型入手,逐步分析,从而得到磁链和转矩。
This thesis introduces the basic principle of direct torque control on asynchronous motor. Through mathematics model of asynchronous motor, stator flux and torque can be got.
仿真结果和试验结果表明辨识转速能够准确地跟踪实际转速,证明了基于定子磁链u - N模型的速度自适应辨识方法的有效性和实用性。
These prove the validity and practicability of the method of speed adaptive estimation based on stator flux U-N model proposed by this paper.
考虑了链内颗粒和相邻链中颗粒的影响,修正了磁流变弹性体的磁偶极子模型。
Taking into account the influences of particles in the same chain and the particles in all adjacent chains, the traditional magnetic dipole model of the magnetorheological elastomers was modified.
用于SRM非线性磁链特性的基础上建立的数学模型。
A mathematical model for SRM was established on the basis of non-linear flux-linkage characteristics.
介绍了变速恒频风力发电的基本原理,并采用定子磁链定向的矢量控制方法得到了双馈发电机的矢量控制系统模型。
The thesis presents the principle of VSCF wind Power. In this thesis, we adopt the vector control strategy of stator field-orient and gain a vector control system model of double-feedback generator.
在此模型的基础上,运用模糊算法,以电流和磁链作为输入、位置作为输出,检测出转子的位置。
Then using fuzzy algorithm with phase current and flux linkage as inputs, the rotor position can be detected.
本文在综述感应电动机的控制方法和详细分析感应电动机数学模型的基础上,研究了定子磁链和转矩的跟踪控制问题。
Based on the analysis of the mathematical model of induction motor, this paper addresses the problem of tracking control of stator flux and torque.
本文在综述感应电动机的控制方法和详细分析感应电动机数学模型的基础上,研究了定子磁链和转矩的跟踪控制问题。
Based on the analysis of the mathematical model of induction motor, this paper addresses the problem of tracking control of stator flux and torque.
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