基于级联式多电平拓扑的高速SRM集中功率控制与性能优化  

Centralized Power Control and Performance Optimization of High-speed SRM Based on Cascade Multilevel Topology

作　　者：汪凤翔 陈彦涛 何英杰 柯栋梁 WANG Fengxiang;CHEN Yantao;HE Yingjie;KE Dongliang(School of Advanced Manufacturing,Fuzhou University,Quanzhou 362200,Fujian Province,China;Chair of Electrical Drive Systems and Power Electronics,Technical University of Munich,Munich 80333,Germany;National and Local Joint Engineering Research Center for Electrical Drives and Power Electronics(Quanzhou Institute of Equipment Manufacturing,Haixi Institute,CAS),Quanzhou 362216,Fujian Province,China)

机构地区：[1]福州大学先进制造学院,福建省泉州市362200 [2]慕尼黑工业大学电力电子与电气传动研究所,德国慕尼黑80333 [3]电机驱动与功率电子国家地方联合工程研究中心(中国科学院海西研究院泉州装备制造研究中心),福建省泉州市362216

出　　处：《中国电机工程学报》2025年第6期2401-2410,I0031,共11页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金(面上项目)(52277070)。

摘　　要：开关磁阻电机(switched reluctance motor,SRM)高速运行时,由于反电动势较大,励磁绕组电流上升和下降较为缓慢,导致电机系统的效率、输出能力降低。为解决上述问题,提出一种新型五电平功率变换电路和简化系统控制架构的集中功率控制方法。该方法将三电平有源前端和五电平功率变换电路组成AC-DC-DC变换器,并通过速度闭环直接调节网侧馈入机侧的功率流,移除直流电压控制回路,实现系统的集中控制;同时,利用有源前端的Boost特性和五电平功率变换电路的多电平驱动能力,提高电感增大区的利用率,实现电机的快速励磁和退磁功能;最后,通过实验结果验证所提方法的有效性及在效率、输出能力和动态性能等方面的优势。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.

关 键 词：开关磁阻电机 五电平功率变换电路 集中功率控制 AC-DC-DC变换器 

分 类 号：TM352[电气工程—电机]