dsPIC30F2010 microchip 无刷直流电机

AN957

附录B：

闭环控制的源代码清单

此附录包含了闭环控制的源代码清单。

/---------------------------------------------------------------------------------// Software License Agreement//

// The software supplied herewith by Microchip Technology Incorporated

// (the “Company”) is intended and supplied to you, the Company’s customer, // for use solely and exclusively with products manufacture by the Company.

// The software is owned by the Company and/or its supplier, and is protected under // applicable copyright laws. All rights are reserved. Any use in violation of the // foregoing restrictions may subject the user to criminal sanctions under applicable // laws, as well as to civil liability for the breach of the terms and conditions of // this icense.//

// THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES, WHETHER EXPRESS, // IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.

// THE COMPANY SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR // CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

//---------------------------------------------------------------------------------//文件：ClosedLoopSenBLDC.c//

//编写者：Stan D'Souza，Microchip Technology//

// 下列文件应该包含在MPLAB项目中：////ClosedLoopSenBLDC.c——主源代码文件//p30f2010.gld——链接描述文件//

//---------------------------------------------------------------------// 版本历史//

// 10/01/04——第一版

//---------------------------------------------------------------------//***************************************************************************ClosedLoopSenBLDC.c用于对带传感器的BLDC电机进行闭环控制。它的任务包括：

CN5、CN6和CN7引脚（端口B）在CN中断期间，通过读端口B读取来自传感器的输入信号 分析并确定位置的状态1、2……6。

使用查找表StateLoTable，该表用于确定

OVDCON的值。将在表中找到的值装入OVDCON。

将PWMPWM（即要求的）电机速度。然后使用要求的速度值和 实际的速度值来确定比例速度误差和

积分速度误差。有了这两个值，就可以使用下面的公式计算出新的占空比：

NewDutyCycle（新的占空比）= Kp*(比例速度误差) + Ki*(积分速度误差)

然后将10位的NewDutyCycle3个PWM FPWM = 16000hz

设置ADC，使通过PWM触发信号来启动转换。

********************************************************************************/

© 2005 Microchip Technology Inc.DS00957A_CN第11页