基本信息:
- 专利标题： 永磁同步电机低载波比无差拍控制系统及方法
- 专利标题（英）：Low-carrier-wave-ratio dead-beat control system and method for permanent magnet synchronous motor
- 申请号：CN201910692648.2 申请日：2019-07-30
- 公开(公告)号：CN110323988A 公开(公告)日：2019-10-11
- 发明人： 王颖杰 , 刘海媛 , 张栋 , 李山 , 袁知动 , 王亚娟 , 刘飞龙 , 杨照 , 赵江杭 , 粟昶博 , 郭文中
- 申请人： 中国矿业大学
- 申请人地址： 江苏省徐州市大学路1号中国矿业大学科研院
- 专利权人： 中国矿业大学
- 当前专利权人： 中国矿业大学
- 当前专利权人地址： 江苏省徐州市大学路1号中国矿业大学科研院
- 代理机构： 南京瑞弘专利商标事务所
- 代理人： 秦秋星
- 主分类号： H02P21/22
- IPC分类号： H02P21/22 ; H02P21/14 ; H02P21/06 ; H02P6/34 ; H02P6/10 ; H02P25/026 ; H02P27/08
The invention discloses a low-carrier-wave-ratio dead-beat control system and method for a permanent magnet synchronous motor. The system comprises the permanent magnet synchronous motor, an encoder,an abc-dq coordinate conversion unit, a rotating speed outer ring PI controller, a 1/2 moment current estimation unit, a current dead-beat controller, a dq-alpha beta coordinate conversion unit, an SVPWM modulation module and an inverter. In the process of building a current prediction model, the inverter and the motor are regarded as a whole for building the model, the delay action of the inverter is considered, and 1/2 moment current estimation is added for correcting a discretization error, so that the built model is more accurate than a traditional current prediction model; and a current error decoupling integral compensation module is added into the dead-beat controller, so that a stator current control offset is greatly improved, the purpose of good dead-beat control under a low-carrier wave ratio is achieved finally, and a result shows that the motor speed and stator current control is good, the motor stator current control offset is relatively small, and the output torque pulsation is also improved.
公开/授权文献:
- CN110323988B 永磁同步电机低载波比无差拍控制系统及方法 公开/授权日：2023-05-26
IPC结构图谱:
| H | 电学 |
| --H02 | 发电、变电或配电 |
| ----H02P | 电动机、发电机或机电变换器的控制或调节；控制变压器、电抗器或扼流圈 |
| ------H02P21/00 | 通过矢量控制，例如磁场方向控制来控制电机的设备或方法 |
| --------H02P21/22 | .电流控制，如使用电流控制环 |