為了提高直接轉(zhuǎn)矩控制（DTC）系統(tǒng)定子磁鏈估計(jì)精度，降低電流、電壓測(cè)量的隨機(jī)誤差，提出了一種基于擴(kuò)展卡爾曼濾波（EKF）實(shí)現(xiàn)異步電機(jī)轉(zhuǎn)子位置和速度估計(jì)的方法。擴(kuò)展卡爾曼濾波器是建立在基于旋轉(zhuǎn)坐標(biāo)系下由定子電流、電壓、轉(zhuǎn)子轉(zhuǎn)速和其它電機(jī)參量所構(gòu)成的電機(jī)模型上，將定子電流、定子磁鏈、轉(zhuǎn)速和轉(zhuǎn)子角位置作為狀態(tài)變量，定子電壓為輸入變量，定子電流為輸出變量，通過對(duì)磁鏈和轉(zhuǎn)速的閉環(huán)控制提高定子磁鏈的估計(jì)精度，實(shí)現(xiàn)了異步電機(jī)的無速度傳感器直接轉(zhuǎn)矩控制策略，仿真結(jié)果驗(yàn)證了該方法的可行性,提高了直接轉(zhuǎn)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.
標(biāo)簽： EKF 異步電機(jī) 直接轉(zhuǎn)矩 控制系統(tǒng)
上傳時(shí)間： 2015-01-02
上傳用戶：qingdou
Logger iButton devices have gained a lot of popularity with researchers. Although free evaluation software is easy to use and welldocumented, the choices and inputs that need to be made can sometimes be challenging. This application note explains technicalterms that are common with temperature logger iButtons and how they relate to each other. Additionally, it presents an algorithm tohelp users choose the necessary input Parameters, including the sample rate based on a user's needs and the available memory tostore the data.
上傳時(shí)間： 2013-11-16
上傳用戶：xywhw1
pdnMesh is an automatic mesh generator and solver for Finite Element problems. It will also do post-processing to generate contour plots and Postscript printouts. GUI support using GTK or MFC (Win32) is available. The problem definition can be done in any form and given to pdnMesh as an input data file. Drawing Exchange Format (DXF) files can be directly imported to pdnmesh. The quality and the coarseness of the mesh can be controlled by giving input Parameters.
標(biāo)簽： automatic generator problems pdnMesh
上傳時(shí)間： 2013-12-19
上傳用戶：cuibaigao
The ability to create groups of reports, and grant users access to reports by group. The ability to generate reports as PDF, XLS, HTML, and CSV files. The ability to generate bar, pie and xy charts for inclusion in reports. The ability to schedule and email PDF, XLS, and CSV reports. The ability to define reusable report Parameters. Available parameter types include Date, Text, and Query Parameters. The ability to create multiple DataSources for use in generating reports. Support for JNDI DataSources and internal connection pooling via Commons-DBCP is included. The ability to upload and hot deploy new reports. Web based administration of users, groups, reports, Parameters, and datasources. Cross platform database support via Hibernate based persistence layer. Available in a preconfigured bundle with Apache Tomcat.
標(biāo)簽： ability reports The to
上傳時(shí)間： 2014-01-14
上傳用戶：franktu
This directory contains utility for implementing generic Reqursive Least Squares (RLS) algorithm. The example shows how one can use the utility to estamate the Parameters of a simple linear discrete time system.
標(biāo)簽： implementing Reqursive directory algorithm
上傳時(shí)間： 2014-01-06
上傳用戶：gtf1207
This model simulates a CDMA2000 1xRTT Forward link (between Base Station and Mobile Station). In particular, it simulates the Radio Configuration 3 of a Forward Fundamental channel. The block CDMA2k: Initial settings allows you to set different Parameters such as data rate, Power Control SubChannel insertion rate, spreading code index, QOSF index and the channel model.
標(biāo)簽： Station simulates Forward between
上傳時(shí)間： 2015-03-28
上傳用戶：13215175592
to show the waveform of audio file and play it on computer Purpose: Familiar with WAV file format and UI design It should have the following functions: Provide a Graphic User Interface for user to browse the file system and select one WAV file Show the waveform of input audio signal Play the selected WAV file Print the Parameters of WAV file such as sampling rate, bit-depth, etc
標(biāo)簽： file Familiar computer waveform
上傳時(shí)間： 2015-05-07
上傳用戶：l254587896
FIR Filter Design（有限沖擊響應(yīng)濾波器設(shè)計(jì)），包括ideal bandpass filter impulse response、Modified Bessel function、Kaiser window Parameters for spectral analysis等12種FIR設(shè)計(jì)matlab源代碼
標(biāo)簽： Design Filter FIR 響應(yīng)濾波器
上傳時(shí)間： 2015-05-20
上傳用戶：Miyuki
基于simulink的uwb仿真 uwb.mdl: UWB model - open this to begin. uwb_lib.mdl: Library blocks for UWB model. uwb_init.m: Initialization called before model is loaded. uwb_settings: Sets up structure containing system Parameters ( uwb in workspace). uwb_imr.m: Initializes UWB channel impulse response. uwb_sv_*.m: Four M-files used to generate channel impulse responses (MAT files).
標(biāo)簽： mdl UWB uwb simulink
上傳時(shí)間： 2013-12-22
上傳用戶：gengxiaochao
/* This program generates the DApkg.vhd file that is used to define * the DA filter core and gives its Parameters and the contents of the * Distributed Arithmetic Look-up-table "DALUT" according to the DA algorithm
標(biāo)簽： generates the program define
上傳時(shí)間： 2015-07-07
上傳用戶：wangchong
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