Invention Grant
- Patent Title: Method for controlling torque in permanent magnet motor drives
-
Application No.: US14676514Application Date: 2015-04-01
-
Publication No.: US09722522B2Publication Date: 2017-08-01
- Inventor: Gary Pace
- Applicant: CANRIG DRILLING TECHNOLOGY LTD.
- Applicant Address: US TX Houston
- Assignee: CANRIG DRILLING TECHNOLOGY LTD.
- Current Assignee: CANRIG DRILLING TECHNOLOGY LTD.
- Current Assignee Address: US TX Houston
- Agent Adolph Locklar
- Main IPC: H02P21/18
- IPC: H02P21/18 ; H02P21/14 ; H02P6/08 ; H02P21/22
Abstract:
A method for limiting the torque of a permanent magnet AC motor includes a torque limit controller. The torque limit controller at least in part bases the torque limit on a selected direct voltage limit. The selected direct voltage limit may be used in combination with other torque limit conditions to generate the torque demand for the AC motor.
Public/Granted literature
- US20150288310A1 Method for Controlling Torque in Permanent Magnet Motor Drives Public/Granted day:2015-10-08
Information query
