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標(biāo)簽： GUIDELINES LAYOUT 320 PCB
上傳時(shí)間： 2013-10-10
上傳用戶(hù)：manga135
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(guò)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(wú)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(hù)：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(hù)：xywhw1
There are many manufacturers of dot matrix LCD modules. However, most of these displaysare similar. They all have on-board controllers and drivers capable of displaying alpha numericsand a wide variety of Other symbols (including Japanese "Katakana" characters). The internaloperation of LCD controller devices is determined by signals sent from a central processing unit(in this case, a CoolRunner-II CPLD).
標(biāo)簽： CoolRunner-II XAPP 904 LCD
上傳時(shí)間： 2013-12-17
上傳用戶(hù)：haiya2000
Full support for extended regular expressions (those with intersection and complement); Support for some kinds of cycles in grammar; DFA-based operation; Unicode support; C++ only, requires a modern compiler; Lexical analyzers can be configured to get symbols from any input class (built-in support for std::istream, std::wistream and FILE *); Designed to work with Whale, but can work standalone or interface to Other parsers.
標(biāo)簽： intersection expressions complement for
上傳時(shí)間： 2013-12-11
上傳用戶(hù)：zhanditian
Tug of War(A tug of war is to be arranged at the local office picnic. For the tug of war, the picnickers must be divided into two teams. Each person must be on one team or the Other the number of people on the two teams must not differ by more than 1 the total weight of the people on each team should be as nearly equal as possible. The first line of input contains n the number of people at the picnic. n lines follow. The first line gives the weight of person 1 the second the weight of person 2 and so on. Each weight is an integer between 1 and 450. There are at most 100 people at the picnic. Your output will be a single line containing 2 numbers: the total weight of the people on one team, and the total weight of the people on the Other team. If these numbers differ, give the lesser first. )
上傳時(shí)間： 2014-01-07
上傳用戶(hù)：離殤
The Gray Watson debugging malloc library is C source code for a drop in replacement for the system malloc & Other memory manage ment routines. What is unique about this library is that it contains a number of powerful debugging facilities including very comprehensive heap testing and ex- cellent run-time debugging information.
標(biāo)簽： replacement debugging for library
上傳時(shí)間： 2015-02-05
上傳用戶(hù)：TF2015
This code may be reused for any educational or non-commercial application without further licence Contact the author at BrianLBurns@att.net for any Other use.
標(biāo)簽： non-commercial application educational further
上傳時(shí)間： 2014-07-27
上傳用戶(hù)：jennyzai
This a separate release of the OpenSS7 X/Open XTI/TLI library, TLI modules (timod, tirdwr) and the INET driver (inet) that provides Unix98 compatible interface to Linux NET4 TCP/IP stacks, and all the necessary manpages and Other documentation. Although these components are contained in our LiS and Linux Fast-STREAMS releases, this tarball configures, builds and installs these components separate from those releases.
標(biāo)簽： TLI the separate OpenSS7
上傳時(shí)間： 2015-03-12
上傳用戶(hù)：mikesering
This matrix C++ template class library is for performing common matrix operations in your C++ program like any Other built-in data types. To install the package, just copy MATRIX.H file into the INCLUDE directory of your compiler and include this header file in your program source file
標(biāo)簽： matrix performing operations template
上傳時(shí)間： 2013-12-21
上傳用戶(hù)：wys0120
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