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Dynamicmodelsimulationofdoubly-fedwindturbines
- 为满足在电网发生故障时风电机组需保持与电网连接并向系统不间断供电的要求,提出 了双馈风力发电机的动态模型、变流器模型、变流器保护及电网模型,以研究双馈风力发电机的暂 态特性.以1·5MW SUT-1500双馈风力发电机为原型,由一个无穷大电源等效电网模型,变流器模 型采用定子磁链的定向电流矢量控制方法,利用PSCAD软件对双馈电机的暂态特性进行仿真.仿 真结果表明,矢量控制能够实现双馈电机的有功、无功解耦,并可改善系统的低压穿越能力. -To meet the power f
im
- INDUCTION MOTOR RUN (Currents and speed as state variables) The motor is running at a specified load. After reaching steady state in an initialization first run, the initial conditions are established for a second run in which the load is pulsat
Fault_DFIG
- Abstract—A novel technique for detecting stator interturn faults in a doubly fed induction generator(DFIG)is proposed by an-alyzing its rotor current and search-coilvoltage.So far, fault-diagnostic techniques proposed for stator-interturn-fault detec
dirct-torque-sensorless
- 异步电机的精确控制和速度辨识是交流传动系统中重要问题。在该仿真系统中，电机转速采用易于检测的电机定子电压和电流得到转速MRAS辨识算法来估算。由于速度辨识算法中电压模型的纯积分环节会引起的误差积累和漂移问题，采用改进积分型转子磁链估算模型来解决。-The precise control and the speed identification of AC motor are the very important issues on AC drive system.In this system,
mohu-dirct-torque
- 该仿真模型是一种利用模糊控制器调节PWM信号占空比的异步电动机直接转矩控制的策略，即在传统异步电动机直接转矩控制的基础上，用模糊控制器代替传统DTC中的滞环比较器和空间电压矢量状态选择器来细分控制规则，最后控制逆变器的开关，以减小转矩和磁链脉动，从而改善交流异步电机伺服系统的动、静态品质，使整个系统具有较强的鲁棒性和自适应性。-A method of the stator resistance estimate which based on the fuzzy neural network wa
directcontrol
- 采用Hopfield神经网络的改进异步电动机直接转矩控制方法，可以有效的降低电磁转矩、定子磁链和定子电流的波动。-Improved Hopfield neural network using asynchronous motor direct torque control method can effectively reduce the electromagnetic torque, stator flux and stator current fluctuations.
0913
- 电机控制程序，用来提取电机的定子电流转子槽谐波，来计算电机转速和温度-The motor control program, used to extract the motor stator current harmonic rotor slot, to calculate the motor speed and temperature
1-(2)
- Fault diagnosis system of induction motors based on neural network and genetic algorithm using stator current signals
abd
- 三相异步电机变频调速仿真模型 仿真目的：改变三相异步电机的定子电源频率，观察电机定子电流，转速的变化规律。 -Three-phase induction motor speed regulation simulation model simulation purpose: to change the three-phase induction motor stator power frequency, and observe the variation of the stator cur
update1
- 搭建永磁同步电机的直接转矩控制仿真模型 1，实测电流经过3/2变换得到alpha-beta轴上的电流； 2，估计模块中包含定子磁链和电磁转矩的估算，其中，定子磁链观测是采用基于转子位置和定子电流的磁链估计，电磁转矩直接在alpha-beta轴上计算； 3，转速调节模块和转矩调节模块直接采用PI调节器； 4，预期电压矢量估计模块，根据k时刻的磁链幅值与相位和k+1时刻的磁链幅值和相位计算出来的； 5，SVMPWM是空间电压矢量调制模块，实现空间任意角度任意大小的电压矢量，从而控
SVPWM_VSI
- 空间矢量控制方式的实质是将交流电动机等效SVPWM为直流电动机，分别对速度，磁场两个分量进行独立控制。通过控制转子磁链，然后分解定子电流而获得转矩和磁场两个分量，经坐标变换，实现正交或解耦控制。-Essence of space vector control mode is equivalent to SVPWM AC motor DC motor, respectively, speed, independent control of the two components of the mag
SVPWMDPE
- 空间矢量脉冲宽度调制，主要是跟踪转子磁场，调整定子电流矢量 的仿真程序-Space vector pulse width modulation, mainly to track the rotor magnetic field, adjust the stator current vector simulation program
2
- A Self-Sensing Stator Current Based Control System of a DFIG Connected to a dc-Link
fftspectrum
- 基于FFT的频谱分析程序，包含感应电机定子电流数据，可直接运行-FFT based spectrum analysis program, including the induction motor stator current data, can be directly run
current-analysis-
- 分享了基于定子电流分析的电机故障诊断技术，展示诊断方法的更多可能性-Motor fault diagnosis technology based on stator current analysis
yibumotor_DTC_control
- 异步电机直接转矩控制系统仿真： 模型整体结构分为三大部分：主电路部分（直流电源、逆变器、电机）、控制系统部分（采用的是直接转矩控制，所以主要有坐标变换模块，灰色部分，磁链观测器模块，红色部分，直接转矩开关表选择模块，蓝色部分，以及外环的转速调节器ASR）剩下的就是仿真结果波形观测部分（观测信号依次向下为定子ab相线电压、三相定子电流、电机转速、电机电磁转矩） 运行初始条件为以1420r./min的额定转速电机空载启动，在0.3s时刻突加额定负载50牛米。在0.5s时刻电机转速突然下降为120
mochanghejiaodu
- 根据三相电流的幅值，可以计算永磁同步电机中三相定子电流中负序电流幅值和角度差。(According to the amplitude of the three-phase current, the amplitude and angle difference of the negative sequence current in the three-phase stator current in the permanent magnet synchronous motor can be calc
无传感器的永磁同步电机控制
- 电机的MATLAB仿真程序，采用了卡尔曼滤波，对定子电流进行估计，并估算出转子的位置和速度(Kalman filter is used in MATLAB simulation program to estimate the stator current and the rotor position and speed.)
untitled1
- 永磁同步电机，应用MTPA和弱磁控制的定子电流控制方法，完成矢量控制策略的搭建(The stator current control method based on MTPA and flux weakening control is used to complete the construction of vector control strategy for permanent magnet synchronous motor.)
电机
- 基于EKF的三相PMSM无传感器矢量控制框图，EKF算法采用s函数进行编写，函数命名为EKF。其中，输入为电机在静止坐标系下的钉子电压和定子电流，输出为定子电流估计值，转速和转子位置(Based on EKF's three-phase PMSM sensorless vector control block diagram, EKF algorithm uses s function to write, and the function is named EKF. Among them, th