Translated Title
Centralized Power Control and Performance Optimization of High-speed SRM Based on Cascade Multilevel Topology
Translated Abstract
During high-speed operation,the switched reluctance motor(SRM)experiences a significant counter electromotive force,leading to slow changes in excitation coil current,subsequently resulting in a reduction in the motor＇s efficiency and output capacity.To address these issues,a novel five-level power conversion circuit and a simplified system control architecture for centralized power control are proposed.This method combines a three-level active front-end with a five-level power conversion circuit to form an AC-DC-DC converter.Through a speed closed-loop control,it directly regulates the power flow from the grid side to the machine side,successfully eliminating the need for a DC voltage control loop,thus achieving centralized system control.Additionally,by harnessing the Boost feature of the active front-end and the multi-level drive capability of the five-level power conversion circuit,the utilization of the inductance increase region is improved,enabling rapid excitation and demagnetization of the motor.Experimental results validate the effectiveness of the proposed method,demonstrating advantages in terms of efficiency,output capacity,and dynamic performance.
Translated Keyword
AC-DC-DC converter
centralized power control
five-level power conversion circuit
switched reluctance motor(SRM)
Access Number
WF:perioarticalzgdjgcxb202506031
