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永磁同步电机调速系统
相比于传统使用的电机，永磁同步电动机（PMSM）具有着比较高的工作效率、比较高的力矩惯量比、比较高的能量密度和环保节能等优越特性，所以对永磁同步电机进行控制调速方面的研究有着相当重要的意义。我们设定电机转速初始值作为给定值，然后与反馈的实际值进行比较，得到的差值输入PI控制器进行控制，得到交轴电流。同时三相绕组输出的电流经过clarke变换和park变化得到电流的实际值，分别与给定值进行比较，将比较后的值再进行park转换，得到的结果经过SVPWM技术调制之后输入到逆变器，继而可以驱动三相电机。(Used compared to traditional motor, permanent magnet synchronous motor (all-digital fuzzy) has a higher efficiency, higher moment of inertia ratio, higher energy density and superior properties such as environmental protection and energy saving, so the control of permanent magnet synchronous motor speed regulation research has important significance. We set the initial value of motor speed as the given value, and then compare it with the actual value of feedback. The difference obtained is input to PI controller for control, and the current of crossaxis is obtained. At the same time the output three-phase winding current through Clarke transformation and park changes the current actual value, compared with a given value respectively, after comparing the value of the park transformation again, the result after SVPWM modulation technology input to the inverter, which in turn can drive three-phase motor.)
- 2018-05-30 15:17:43下载
- 积分：1
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OpenPCD-2-RFID-Reader-for-13.56MHz
国外的一个13.56MHz的开源读写器项目,包括电路图和源码,可以直接使用,欢迎参考(13.56M Open Source Code for RFID.)
- 2020-12-30 13:39:00下载
- 积分：1
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modbus软件开发实战 ModbusMaster
说明： modbus软件开发实战，适用于各种工业控制(Modbus software development practice, suitable for various industrial control)
- 2020-06-20 05:00:01下载
- 积分：1
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SQL
can kao shouce (can kao shou ce )
- 2013-12-23 17:21:08下载
- 积分：1
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PGA_Program
MSP430单片机IAR开发环境下驱动pga113芯片(Driving pga113 chip in the IAR development environment of MSP430 single chip microcomputer)
- 2021-04-19 21:28:51下载
- 积分：1
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calendar
用51单片机实现万年历，时钟，闹钟的功能(Calendar, clock, alarm clock function with 51)
- 2012-07-23 20:18:12下载
- 积分：1
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RS485通讯_DMA收发数据
基于STM32F407 MCU，对RS485进行通讯测试,DMA收发数据，经测试数据稳定，功能正常(Based on STM32F407 MCU, RS485 was tested for communication,DMA data receiving and receiving, the tested data was stable and the function was normal)
- 2020-12-28 21:09:01下载
- 积分：1
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msp430FE427RS485
基于MSP430FE427单片机的RS485源码，485没有使能端，利用串口助手2.1，发一组数据被单片机接受后返回。完全符合645协议，其中数据域接受时减0x33，发送时加0x33。所以收到的数据效验码与发送的会不同。(RS485-based SCM MSP430FE427 source, 485 is not enabled client, using assistant serial 2.1, the one set of data has been accepted to return to single-chip microcomputer. In full compliance with the 645 agreement, which the data field accepted by 0x33, sent plus 0x33. Therefore, the data received and sent well-tested code will be different.)
- 2021-03-08 09:49:29下载
- 积分：1
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AD7799
说明： AD7799 AD转换芯片，电压采集驱动程序。(AD7799 AD conversion chip, voltage acquisition driver.)
- 2019-02-27 16:26:33下载
- 积分：1
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4
说明： 单片机位移控制流水灯，C放言和汇编语言，proteus仿真(SCM displacement control water lamp, C release and assembly language, proteus simulation)
- 2018-06-05 18:36:24下载
- 积分：1
