Modeling and Design of Quasi-Z-Source Inverter for PMSM Drive System

    • Presentation speakers
      • Tuopu Na, Harbin Institute of Technology

    This paper researches on modeling and design of quasi-Z-source inverter (q-ZSI) applied for PMSM drive system.Using state-space average method, the small-signal model and steady model are builded. Based on the mathematical model of PMSM and q-ZSI, the control systems of dc-link voltage and stator current are designed. The bandwidth of dc-link system is limited to reduce the interference between them. Stability and dynamic characteristics of systems are analyzed using bode diagram. The simulation and experiment indicate that the desgined systems have good dynamic characteristic and antiinterference characteristic.


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