基本信息:
- 专利标题： METHOD AND SYSTEM FOR CONTROLLING BRAKING OF AN ELECTRIC MOTOR
- 申请号：EP23220006.3 申请日：2023-12-22
- 公开(公告)号：EP4425784A1 公开(公告)日：2024-09-04
- 发明人： Johnson, Scott , Kelly, Andrew , Lehmann, Derek
- 申请人： Deere & Company
- 申请人地址： US Moline, IL 61265 One John Deere Place
- 专利权人： Deere & Company
- 当前专利权人： Deere & Company
- 当前专利权人地址： US Moline, IL 61265 One John Deere Place
- 代理机构： Reddie & Grose LLP
- 优先权： US 2363488262P 2023.03.03
- 主分类号： H02P3/18
- IPC分类号： H02P3/18 ; H02P3/22 ; H02P29/60 ; H02P29/64 ; H02P29/66 ; H02P29/68
摘要：
In accordance with one embodiment, a method of controlling a braking of a rotor of an electric motor comprises operating an electric motor in a first mode at an inefficient operating point or inefficient operating curve of a quadrature-axis current versus a direct-axis current such that the braking of the electric motor occurs at a rate based on a rate proportional to or less than the total available power losses in the motor, the inverter, or both. The electric motor is operated in the first mode until the observed rotor speed of the electric motor is less than or equal to a threshold speed; thereafter a multi-phase short circuit can be applied.
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 |
| ------H02P3/00 | 电动机、发电机或机电变换器的停止或减速装置 |
| --------H02P3/02 | .零部件 |
| ----------H02P3/18 | ..用于交流电动机的停止或减速的 |