| Title |
Position Error Compensation Method for Resolvers using Kalman Filter |
| Authors |
Ji-Hae Ahn ; Hyung-Jin Ahn ; Joon-Yeol Park |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2015.29.5.050 |
| Keywords |
Resolver ; Position Error ; Kalman Filter ; PMSM |
| Abstract |
As rotor position is a reference of coordinate in vector control of PMSM, the information of exact rotor position is required. To measure the position of motors, hall-effect sensors, encoders, resolvers, etc. are used. Among these sensors, resolvers have good endurance in the variation of circumstance and can be used in a wide range of temperature, but resolvers are less exact than encoders. In addition, resolvers have a drawback that the output signal contains periodic error components. Thus, this paper proposes a compensation method for the unique position error in resolvers using Kalman filter to achieve high performance control of PMSM. The validity of the proposed scheme is demonstrated through simulation studies. |