Real-time estimation of the boost inductance for traction PWM converters

This paper proposes a real-time estimation of the boost inductance for traction PWM converters. The estimation procedure of the boost inductance is only based on the variation of input current and the input AC voltage measurement. The estimated boost inductance is optimized by the least square method. This estimation technique can improve the performance of current controller and reduce the harmonics of the input current in the feed-forward controller. The validity of proposed technique is verified through the simulation results.