Predictive Field Oriented Control of PMSM Using Fuzzy Logic

This paper deals with two popular and powerful methods in electrical drive applications. The first one is field oriented control (FOC) and the other one is space vector modulation (SVM). The proposed FOC-SVM method is incorporated with a predictive current control (PCC) based technique. The proposed method estimates the desirable electrical torque to track mechanical torque at fixed speed operation of permanent magnet synchronous motor (PMSM). The estimated torque is used to calculate the reference current based on FOC. In order to increase the performance of the traditional SVM, predictive current control (PCC) is established as switching pattern modifier. In addition, to manage the uncertainty of theestimated values and their error, a fuzzy inference system is cooperated with the proposed FOC-SVM-PCC controller. The performance of the proposed technique is evaluated in terms of torque and current ripple and transient response to step variations of the torque command.

Keywords:

Permanent magnet synchronous motor , fuzzy logic , predictive current control , field oriented control , space vector modulation , constant switching frequency