基于快速退磁拓扑的高速SRM集中功率控制  

Integrated Power Control of High-speed SRM Based on Fast Demagnetization Topology

作　　者：陈彦涛 柯栋梁 何英杰 汪凤翔 CHEN Yan-tao;KE Dong-liang;HE Ying-jie;WANG Feng-xiang(School of Advanced Manufacturing Fuzhou University,Quanzhou 362200,China;不详)

机构地区：[1]福州大学先进制造学院,福建泉州1362200 [2]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),福建建泉州362216

出　　处：《电力电子技术》2024年第9期28-30,48,共4页Power Electronics

基　　金：福建省科技重大专项(2023HZ2028010)。

摘　　要：高速开关磁阻电机(SRM)运行时,由于退磁电流拖尾时间较长,导致相绕组电流进入电感下降区形成负转矩,从而降低了电机系统的输出能力和效率。为解决此问题,提出了一种单相三电平整流器(VSR)和SRM四电平功率变换电路(FLPCC)级联构成的多电平驱动拓扑和简化控制策略的集中功率控制方法。该方法通过速度闭环直接控制网侧VSR馈入机侧FLPCC的功率流,全局实现了参考速度跟踪、功率因数校正和制动能量回馈。同时,利用VSR的升压特性和FLPCC的多电平驱动能力,显著缩短了退磁电流的拖尾时间,提高了电感上升区的利用率。通过实验测试,验证了所提驱动拓扑及其控制方法的有效性。During high-speed operation of the switched reluctance motor(SRM),the prolonged demagnetization current tail causes the phase winding current to enter the inductance reduction zone,generating negative torque and conse-quently reducing the motor system's output capacity and efficiency.To address this issue,the integrated power control method is proposed,incorporating a multi-level drive topology and simplified control strategy involving a cascaded ar-rangement of a single-phase three-level rectifier(VSR)and a four-level power conversion circuit(FLPCC)for the SRM.This method directly regulates the power flow from the grid-side VSR to the machine-side FLPCC through a closed-loop speed control,achieving global objectives such as reference speed tracking,power factor correction,and regenera-tive braking.Concurrently,leveraging the boosting capability of VSR and the multi-level driving prowess of FLPCC sig-nificantly reduces the demagnetization current tail,enhancing the utilization of the inductance rise zone.The experi-mental testing has validated the efficiency of the proposed drive topology and its control methodology.

关 键 词：开关磁阻电机 单相三电平整流器 四电平功率变换电路 

分 类 号：TM352[电气工程—电机]