Generalized Space Vector Pulse-Width Modulation for Dual Inverter Open-End Winding PMSM with Isolated DC Sources: Design and Experimental Validation

Despite numerous challenges related to infrastructure, battery technologies, and other aspects, electric vehicles are gaining increasing acceptance in the global market and are simultaneously the subject of intensive research. The growing trend emphasises the need for efficient, reliable, and powerful powertrains. One of the promising configurations is the openend winding permanent magnet synchronous machine (OEWPMSM), which is fed by a dual inverter from isolated DC voltage sources. This paper presents a detailed study of our newly developed Generalized Space Vector Pulse-width Modulation for a Dual Inverter Drive (GSVPWM-DID) modulation technique. This method builds upon the Unified Space Vector Pulse-width Modulation (USVPWM), by ensuring balanced switching stress, reduced current total harmonic distortion, and a preserved linear modulation range even under DC-link voltage imbalance. The paper discusses the advantages of the proposed method, such as improved fault tolerance and spectral quality, along with its trade-offs in switching losses. To verify the control and modulation strategy, the Controller-Hardware-in-the-Loop (C-HIL) testing framework was employed. The motor and inverters were emulated on the Typhoon HIL platform, while the Infineon 32bit AURIX ${ }^{\text {TM }}$ TriCore ${ }^{\text {TM }}$ TC375 controller executed the control algorithm. The MATLAB/Simulink environment was used for the automatic code generation on the target hardware.