模块化功率变换器驱动开关磁阻电机转矩控制  

Torque Control of Switched Reluctance Machine Driven By Modular Power Converter

作　　者：杨广辉[1] 郭振超 程启原 黄晓灿 YANG Guanghui;GUO Zhenchao;CHENG Qiyuan;HUANG Xiaocan(Patent Office,China National Intellectual Property Administration,Beijing 100088,China;Aiming Display Department,AVIC OPTRONICS,Luoyang 471000,China;School of Automation,Northwestern Polytechnical University,Xi’an 710072,China;School of Communication Engineering,Jilin University,Changchun 130022,China)

机构地区：[1]国家知识产权局专利局,北京100088 [2]洛阳电光设备研究所瞄准显示部,洛阳471000 [3]西北工业大学自动化学院,西安710072 [4]吉林大学通信工程学院,长春130022

出　　处：《微特电机》2022年第8期42-47,54,共7页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(51877179)。

摘　　要：针对模块化功率变换器驱动的开关磁阻电机,提出了一种基于电流重叠角优化和脉宽调制的直接瞬时转矩控制方法,通过检测相电流大小,并结合电机转子的位置,将传统转矩分配函数中固定的电流重叠角替换为实时计算值,并在转矩控制器设计时,结合脉宽调制算法,实现了小范围内转矩误差的平稳连续调控,解决了传统直接瞬时转矩控制在模块化功率变换器下转矩无法有效跟随参考转矩的问题,有效降低了模块化功率变换器驱动的开关磁阻电机的转矩波动。通过仿真与实验验证了该方法的有效性。According to the switched reluctance machine driven by the modular power converter,a novel direct instantaneous torque control method was proposed based on the current overlapping angle optimization and pulse width modulation.By detecting the phase current and rotor position,the fixed current overlapping angle in the traditional torque sharing function was replaced with the real-time calculated value.The pulse width modulation algorithm was applied to design the torque controller.The stable and continuous adjustment of the torque error was realized in a small range,and the problem that the torque couldn’t track its reference value well in modular power converter with the traditional direct instantaneous torque control was solved,which effectively reduced the torque ripple of the switched reluctance machine driven by the modular power converter.The effectiveness of the proposed method was verified by simulations and experiments.

关 键 词：开关磁阻电机 模块化功率变换器 直接瞬时转矩控制 电流重叠角 脉宽调制 

分 类 号：TM352[电气工程—电机]