Real-Time Modeling of Segmented Multiphase Linear Motor with Thyristor and Neutral Connection During the Switching Process

The high dimension sate equation and strong non-linearity challenge building the real-time model of the segmented multiphase linear motor (SMLM) with thyristor switch and neutral connection. In this paper, the linear reconstruction transformation and the neutral point current constraints are used to simplify the complex equation of SMLM first. Then, the associated discrete model of the thyristor is applied to avoid iteration calculation during the switching process. At last, the controlled voltage and current sources are implemented to decouple the calculation of thyristor and SMLM in the hardware-in-loop (HIL) platform. The offline simulation and HIL test results demonstrate that the proposed model can precisely reflect the power-switching transient characteristics. This study can provide a validation platform for the switching control strategy of SMLM.