Modeling and Control of Dual Three-Phase PMSG

Abstract

Compared with the conventional three-phase motor, the dual-three-phase motor has many advantages, but its model and control strategy are more complicated. This paper analyzes the relationship between the double d-q coordinate transformation and the vector space coordinate transformation method, which is often used in the model construction of the dual three-phase permanent magnet synchronous generator (DTP-PMSG). Fully decoupling of the double d-q coordinate transformation model is realized by unit diagonalization. By comparing the diagonalized equation with the vector space coordinate transformation, it is found that there are many similarities between the two fully decoupled coordinate transformation methods. Finally, diagonalization is added to the vector control, and the result of simulation is compared with that of the vector control technology under the double d-q coordinate transformation. It is found that the fifth and seventh harmonics can be reduced in this method.