为了提高直接转矩控制（DTC）系统定子磁链估计精度，降低电流、电压测量的随机误差，提出了一种基于扩展卡尔曼滤波（EKF）实现异步电机转子位置和速度估计的方法。扩展卡尔曼滤波器是建立在基于旋转坐标系下由定子电流、电压、转子转速和其它电机参量所构成的电机模型上，将定子电流、定子磁链、转速和转子角位置作为状态变量，定子电压为输入变量，定子电流为输出变量，通过对磁链和转速的闭环控制提高定子磁链的估计精度，实现了异步电机的无速度传感器直接转矩控制策略，仿真结果验证了该方法的可行性,提高了直接转矩的控制性能。 Abstract: In order to improve the Direct Torque Control（DTC） system of stator flux estimation accuracy and reduce the current， voltage measurement of random error， a novel method to estimate the speed and rotor position of asynchronous motor based on extended Kalman filter was introduced. EKF was based on d-p axis motor and other motor parameters （state vector: stator current， stator flux linkage， rotor angular speed and position； input: stator voltage； output: staror current). EKF was designed for stator flux and rotor speed estimation in close-loop control. It can improve the estimated accuracy of stator flux. It is possible to estimate the speed and rotor position and implement asynchronous motor drives without position and speed sensors. The simulation results show it is efficient and improves the control performance.
上传时间： 2015-01-02
上传用户：qingdou
上传时间： 2013-11-01
上传用户：ouyang426
12864液晶时钟显示程序 LCD 地址变量 ;**************变量的定义***************** RS BIT P2.0 ;LCD数据/命令选择端(H/L) RW BIT P2.1 ;LCD读/写选择端(H/L) EP BIT P2.2 ;LCD使能控制 PSB EQU P2.3 RST EQU P2.5 PRE BIT P1.4 ;调整键(K1) ADJ BIT P1.5 ;调整键(K2) COMDAT EQU P0 LED EQU P0.3 YEAR DATA 18H ;年,月,日变量 MONTH DATA 19H DATE DATA 1AH WEEK DATA 1BH HOUR DATA 1CH ;时,分,秒,百分之一秒变量 MIN DATA 1DH SEC DATA 1EH SEC100 DATA 1FH STATE DATA 23H LEAP BIT STATE.1 ;是否闰年标志1--闰年，0--平年 KEY_S DATA 24H ;当前扫描键值 KEY_V DATA 25H ;上次扫描键值 DIS_BUF_U0 DATA 26H ;LCD第一排显示缓冲区 DIS_BUF_U1 DATA 27H DIS_BUF_U2 DATA 28H DIS_BUF_U3 DATA 29H DIS_BUF_U4 DATA 2AH DIS_BUF_U5 DATA 2BH DIS_BUF_U6 DATA 2CH DIS_BUF_U7 DATA 2DH DIS_BUF_U8 DATA 2EH DIS_BUF_U9 DATA 2FH DIS_BUF_U10 DATA 30H DIS_BUF_U11 DATA 31H DIS_BUF_U12 DATA 32H DIS_BUF_U13 DATA 33H DIS_BUF_U14 DATA 34H DIS_BUF_U15 DATA 35H DIS_BUF_L0 DATA 36H ;LCD第三排显示缓冲区 DIS_BUF_L1 DATA 37H DIS_BUF_L2 DATA 38H DIS_BUF_L3 DATA 39H DIS_BUF_L4 DATA 3AH DIS_BUF_L5 DATA 3BH DIS_BUF_L6 DATA 3CH DIS_BUF_L7 DATA 3DH DIS_BUF_L8 DATA 3EH DIS_BUF_L9 DATA 3FH DIS_BUF_L10 DATA 40H DIS_BUF_L11 DATA 41H DIS_BUF_L12 DATA 42H DIS_BUF_L13 DATA 43H DIS_BUF_L14 DATA 44H DIS_BUF_L15 DATA 45H FLAG DATA 46H ;1-年，2-月，3-日，4-时，5-分，6-秒，7-退出调整。 DIS_H DATA 47H DIS_M DATA 48H DIS_S DATA 49H
上传时间： 2013-12-25
上传用户：wvbxj
Explain how to open the Waveform Viewer for Verification ? State how to insert nodes into the Waveform Viewer ? Tell how to assign Stimulus with the Stimulator Selector
标签： Foundation 仿真
上传时间： 2013-10-29
上传用户：daguogai
RemoteWAP is a Remote Administration Tool for any Operating System that can support the Java Virtual Machine. It has been designed for anyone who wishes to have complete control of there OS anywhere by using a WAP enabled Mobile Phone. RemoteWAP is developed using Java and WML for the client mobile phone front-end pages. RemoteWAP has a Java Swing-GUI to allow for easy control. Future releases will have a Command Line Interface for quick use
标签： Administration RemoteWAP Operating Virtual
上传时间： 2015-02-01
上传用户：exxxds
This project provides a proxy that allows telnet/tcp connections to be made to serial ports on a machine.
标签： connections provides project allows
上传时间： 2013-11-25
上传用户：jjj0202
编译原理的词法，语法，分析等，还有劳顿的tiny machine （tm.c）的代码实现，前面还有相应的汇编程序
标签： 编译原理
上传时间： 2013-12-24
上传用户：xz85592677
手机文件浏览程序的另外一个版本！ SMan is a system utility that manages your UIQ device. It provides functionality which manufacturers did not provide or which are difficult or impossible to do manually. SMan helps keep your UIQ device running in a "healthy" state and, to a certain degree, allows you to customize the system behaviour of your device.
标签： functionality provides manages utility
上传时间： 2013-12-09
上传用户：独孤求源
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ** RELEASE NOTES *** *** *** *** ***** *** *** *** *** *** *** *** *** *** *** *** *** *** 1) RELEASE NOTES: --- --- ---- The release notes are now provided in PDF format in the file: \SOFTWARE\uCOS-II\DOC\RelV251.PDF 2) FEATURES SINCE V2.00: --- --- --- ----- All the features added since V2.00 are described in the PDF file: \SOFTWARE\uCOS-II\DOC\NewV251.PDF 3) EVENT FLAGS: -------------- Event Flags are discussed in AN-1007 (see www.Micrium.com/app_notes.htm) 4) QUICK REFERENCE CHART: ------------------------ A Quick Reference Chart for all the functions in V2.51 is provided in the following .PDF files: \SOFTWARE\uCOS-II\DOC\QuickRefChartV251-Color.PDF Once printed, simply FOLD the page in half and if you have a LAMINATION machine, you can protect the chart by laminating it.
上传时间： 2015-04-06
上传用户：zq70996813
数据挖掘算法，support vector machine算法源代码，用于分类
标签： 数据挖掘算法
上传时间： 2015-04-11
上传用户：561596
