Minimizing Torque Ripple of Highly Saturated Salient Pole Synchronous Machines by Applying DB-DTFC

作者：Saur Michael^*; Erazo Daniel E Gaona; Zdravkovic Jelena; Lehner Bastian; Gerling Dieter; Lorenz Robert D

来源：IEEE Transactions on Industry Applications, 2017, 53(4): 3643-3651.

DOI：10.1109/TIA.2017.2684086

• Deadbeat control
• deadbeat-direct torque and flux control (DB-DTFC)
• direct torque control (DTC)
• iron saturation
• nonlinear control
• nonlinear flux observer
• synchronous reluctance machine (SynRM)
• torque ripple minimization

Deadbeat-direct torque and flux control is a flux-observer-based high-bandwidth digital closed-loop torque control law that achieves the commanded torque at the end of each switching period. When flux estimation is accurate, instantaneous torque is fed back and undesirable pulsating torque is inherently minimized. This study presents real-time flux-observer-based torque ripple estimation of a highly nonlinear synchronous reluctance machine. Saturation and cross saturation are incorporated directly into the control law, and are considered in each switching period. Deadbeat torque response and torque ripple reduction is demonstrated experimentally. Finite element method simulations validate the torque ripple minimization.

• 出版日期2017-8