https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-realize-PMSM-high-load-low-speed-start/m-p/1412275#M18493 <P>Hi NXPtechnical team</P><P>&nbsp; &nbsp; &nbsp; I refer to the FOC control application of s912zvm(AN5135). The official scheme, rotor position / speed estimation uses BEMF observer. This principle has requirements on the speed, which is not applicable to the occasion of starting at very low speed with large load.</P><P>&nbsp; &nbsp; &nbsp; I need to be able to use the zero speed control scheme, whether the high-frequency injection method is used, and if the resources of s912zvm cannot be met, Can it be implemented on s32k series chips? I look forward to NXP's application in this regard.</P><P>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Thank you</P> Fri, 11 Feb 2022 07:33:14 GMT maxxu 2022-02-11T07:33:14Z https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-realize-PMSM-high-load-low-speed-start/m-p/1412275#M18493 <P>Hi NXPtechnical team</P><P>&nbsp; &nbsp; &nbsp; I refer to the FOC control application of s912zvm(AN5135). The official scheme, rotor position / speed estimation uses BEMF observer. This principle has requirements on the speed, which is not applicable to the occasion of starting at very low speed with large load.</P><P>&nbsp; &nbsp; &nbsp; I need to be able to use the zero speed control scheme, whether the high-frequency injection method is used, and if the resources of s912zvm cannot be met, Can it be implemented on s32k series chips? I look forward to NXP's application in this regard.</P><P>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Thank you</P> Fri, 11 Feb 2022 07:33:14 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/How-to-realize-PMSM-high-load-low-speed-start/m-p/1412275#M18493 maxxu 2022-02-11T07:33:14Z