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Motor

  • 开关磁阻电机驱动系统发展概况(讲座)

    本文介绍了开关磁阻电机驱动系统(Switched Reluctance Drive, SRD)的发展概况、系统构成以及目前的研究热点。 关 键 词: 开关磁阻电机   研究热点 Abstract:In this paper, development, construction and research focus of Switched Reluctance Drive were introduced. Keywords: Switched Reluctance Motor      Research focus 1  发展简介 开关磁阻电机(Switched Reluctance Motor, SRM)最早可以追溯到1970年,英国Leeds大学步进电机研究小组首创一个开关磁阻电机雏形。到1972年进一步对带半导体开关的小功率电动机(10w~1kw)进行了研究。1975年有了实质性的进展,并一直发展到可以为50kw的电瓶汽车提供装置。1980年在英国成立了开关磁阻电机驱动装置有限公司(SRD Ltd.),专门进行SRD系统的研究、开发和设计。1983年英国(SRD Ltd.)首先推出了SRD系列产品,该产品命名为OULTON。1984年TASC驱动系统公司也推出了他们的产品。另外SRD Ltd. 研制了一种适用于有轨电车的驱动系统,到1986年已运行500km。该产品的出现,在电气传动界引起不小的反响。在很多性能指标上达到了出人意料的高水平,整个系统的综合性能价格指标达到或超过了工业中长期广泛应用的一些变速传动系统。下表是当时对几种常用变速传动系统各项主要经济指标所作的比较。成本 1.0 1.5 1.0 美国、加拿大、南斯拉夫、埃及等国家也都开展了SRD系统的研制工作。在国外的应用中,SRD一般用于牵引中,例如电瓶车和电动汽车。同时高速性能是SRD的一个特长的方向。据报道,美国为空间技术研制了一个25000r/min、90kW的高速SRD样机。我国大约在1985年才开始对SRD系统进行研究。SRD系统的研究已被列入我国中、小型电机“八五”、“九五”和“十五”科研规划项目。华中科技大学开关磁阻电机课题组在“九五”项目中研制出使用SRD的纯电动轿车,在“十五”项目中将SRD应用到混合动力城市公交车,均取得了较好的运行效果。纺织机械研究所将SRD应用于毛巾印花机、卷布机,煤矿牵引及电动车辆等,取得了显著的经济效益。 从上世纪90年代国际会议的上有关SRD系统的文章来看,对SRD系统的研究工作已经从论证它的优点、开发应用阶段进入到设计理论、优化设计研究阶段。对SR电机、控制器、功率变换器等的运行理论、优化设计、结构形式等方面进行了更加深入的研究。  

    标签: 开关磁阻电机 发展 驱动系统 讲座

    上传时间: 2013-10-11

    上传用户:xjz632

  • 赛灵思电机控制开发套件简介(英文版)

      The power of programmability gives industrial automation designers a highly efficient, cost-effective alternative to traditional Motor control units (MCUs)。 The parallel-processing power, fast computational speeds, and connectivity versatility of Xilinx® FPGAs can accelerate the implementation of advanced Motor control algorithms such as Field Oriented Control (FOC)。   Additionally, Xilinx devices lower costs with greater on-chip integration of system components and shorten latencies with high-performance digital signal processing (DSP) that can tackle compute-intensive functions such as PID Controller, Clark/Park transforms, and Space Vector PWM.   The Xilinx Spartan®-6 FPGA Motor Control Development Kit gives designers an ideal starting point for evaluating time-saving, proven, Motor-control reference designs. The kit also shortens the process of developing custom control capabilities, with integrated peripheral functions (Ethernet, PowerLink, and PCI® Express), a Motor-control FPGA mezzanine card (FMC) with built-in Texas Instruments Motor drivers and high-precision Delta-Sigma modulators, and prototyping support for evaluating alternative front-end circuitry.

    标签: 赛灵思 电机控制 开发套件 英文

    上传时间: 2013-10-28

    上传用户:wujijunshi

  • 基于EKF的异步电机直接转矩控制系统

    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.

    标签: EKF 异步电机 直接转矩 控制系统

    上传时间: 2015-01-02

    上传用户:qingdou

  • 用于小商品消费的SMS消费机程序

    用于小商品消费的SMS消费机程序,Motor的处理器,对搞手持机的朋友有不少帮助!

    标签: SMS 消费机 程序

    上传时间: 2015-04-15

    上传用户:小宝爱考拉

  • This article describes Atmel’s FingerChip technology for electronic fingerprint sensing that combin

    This article describes Atmel’s FingerChip technology for electronic fingerprint sensing that combines the advantages of small size, low cost, high accuracy, zero maintenance, low energy consumption and portability. This technology has applications in a wide range of fixed and portable secured devices including access control systems, cash terminals, public transport, PCs, PDAs, Smart Card readers and Motor vehicles. It can be used in almost any situation where rapid, reliable and accurate identification or authentication of an individual is required.

    标签: fingerprint FingerChip technology electronic

    上传时间: 2013-12-27

    上传用户:h886166

  • 用PIC控制步进电机完整资料!!希望对大家有帮助! F84程序

    用PIC控制步进电机完整资料!!希望对大家有帮助! F84程序, ******************************************************** Stepper Motor controller Author : Seiichi Inoue ******************************************************** list p=pic16f84a

    标签: PIC F84 控制

    上传时间: 2013-12-27

    上传用户:dave520l

  • 博创arm 3000开发板实验

    博创arm 3000开发板实验,Motor。适合搞嵌入式的同学入门。

    标签: 3000 arm 开发板 实验

    上传时间: 2016-01-06

    上传用户:jackgao

  • 这是一个uC/OS的系统驱动程序

    这是一个uC/OS的系统驱动程序,可以驱动arm开发板上,led、lcd、Motor的运行。

    标签: uC OS 驱动程序

    上传时间: 2016-03-19

    上传用户:bruce5996

  • The PMSM FOC is made of several C modules, compatible with the free-of-charge IAR EWARM KickStart e

    The PMSM FOC is made of several C modules, compatible with the free-of-charge IAR EWARM KickStart edition toolchain version 4.42. It is used to quickly evaluate both the MCU and the available tools. In addition, when used together with the STM32F103xx Motor control starter kit (STM3210B-MCKIT) and PM Motor, a Motor can be made to run in a very short time. It also eliminates the need for time-consuming development of FOC and speed regulation algorithms by providing ready-to-use functions that let the user concentrate on the application layer. Moreover, it is possible to get rid of any speed sensor thanks to the sensorless algorithm for rotor position reconstruction.

    标签: free-of-charge compatible KickStart modules

    上传时间: 2014-01-09

    上传用户:498732662

  • Clock+data serial protocol for PIC16/18F processors. Contains an example application for Zoom/Focus/

    Clock+data serial protocol for PIC16/18F processors. Contains an example application for Zoom/Focus/Iris lens Motor control. Written for HiTech C Compiler.

    标签: application processors for Contains

    上传时间: 2013-12-13

    上传用户:aeiouetla