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Among the sensorless PMSM speed control algorithms, the non-model based approach, such as high frequency (HF) signal injection (HFSI), is usually taken as to estimate the rotor position of PMSM at standstill and very low speed condition, but the model based approach, such as extended Kalman filter (EKF) is suitable to the low/medium/high speed condition for PMSM drive. Therefore, to obtain a wide-speed...
The work presents an adaptive PI controller for sensorless permanent synchronous motor (PMSM) drive system. A rotor flux position of PMSM is estimated by using a sliding mode observer (SMO), firstly. The estimated rotor position will send to the current loop for current vector control and simultaneously feedback to the speed loop for speed control. Then to increase the performance of the PMSM drive...
Based on Simulink/Modelsim co-simulation technology, the design of a sensorless control IP (Intellectual Property) using reduced-order EKF (Extended Kalman Filter) for PMSM (Permanent Magnet Synchronous Motor) drive is presented in this paper. Firstly, a mathematical model for PMSM is derived and the vector control is adopted. Secondly, the rotor flux position and rotor speed are estimated by using...
Based on FPGA (Field Programmable Gate Array) technology, the realization of a sensorless control IC for IPMSM (Interior Permanent Magnet Synchronous Motor) drive is presented in this paper. Firstly, a mathematical model for IPMSM is derived and an extended EMF (Electro-Motive Force) or EEMF is defined. Secondly, a rotor position is estimated by using a sliding mode observer (SMO). These estimated...
A permanent magnet linear synchronous motor (PMLSM) digital signal processor-based drive including both sliding-mode controller and fuzzy deadzone estimator is developed to steer the mover position of the PMLSM. The sliding-mode controller with integral operation will provide properties of fast response and insensitive to parameter variations and external disturbance. By utilizing the concept of deadzone...
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