|本期目录/Table of Contents|

[1]肖海峰,贺昱耀,乔社娟. 永磁同步电机电流环频率响应改进策略研究[J].电机与控制学报,2018,22(06):107-113.[doi:10.15938/j.emc.2017.11.012]
 XIAO Hai-feng,HE Yu-yao,QIAO She-juan. Current loop frequency response improvement strategy researchfor permanent magnet synchronous motor control system[J].,2018,22(06):107-113.[doi:10.15938/j.emc.2017.11.012]
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
22
期数:
2018年06
页码:
107-113
栏目:
出版日期:
2018-06-15

文章信息/Info

Title:
 Current loop frequency response improvement strategy researchfor permanent magnet synchronous motor control system
作者:
  肖海峰12 贺昱耀2 乔社娟1
 (1. 西安航空学院 电子工程学院,陕西 西安 710000;2. 西北工业大学 航海学院,陕西 西安 710072)
Author(s):
 XIAO Hai-feng1. 2 HE Yu-yao2 QIAO She-juan1
 (1. School of Electrical Engineering,Xi’an Aeronautical University,Xi’an 710000,China;2. School of Marine Science and Technology,Northwestern Poly-technical University,
Xi’an 710072,China)
关键词:
永磁同步电机 频率响应 占空比更新 脉宽调制 电流环
Keywords:
 Keywords:permanent magnet synchronous motor frequency response duty ratio updates pulse widthmodulationcurrent loop
分类号:
TM341
DOI:
10.15938/j.emc.2017.11.012
文献标志码:
A
摘要:
 针对永磁同步电机矢量控制电流环内存在的固有延迟环节,如电流采样、占空比计算、逆变器死区效应及数字控制延时等。在同步旋转坐标系下引入电流解耦项 jωrL ,分析制约电流环频率响应能力的主要迟滞因素,并对比不同电流采样时刻与脉宽调制( pulse width modulation,PWM) 占空比更新时序对电流环频率响应的影响。提出了一种新的电流采样时机和更新输出 PWM 信号模式,在半个载波周期内优化采样、计算和输出时序,减小了电流环固有延时等待时间。在载波频率不变的前提下,提高电流环动态加速过程中电流的跟踪性能。仿真和实验结果与理论分析基本吻合,电流环的频率频带带宽提高了近一倍,表明该策略的有效性和正确性。
Abstract:
 Considering the inherent delay existing in the current loop of permanent magnet synchronousmotor,such as the current sampling,duty ratio calculation,inverter dead-time effect and digital controldelay,etc,it introduces the current decoupling jωrL in the synchronous rotating reference frame,con-ducts the analysis of main hysteresis factor restricting current loop frequency response ability,and com-parison of impact of different current sampling time and renewal of the PWM duty cycle on current loopfrequency response. This paper proposed a new current sampling time and updated the output PWM sig-nal model. The optimization calculation and output sequence in half a carrier cycle sampling were a-chieved to reduce the current loop inherent delay. The current loop current in the process of dynamictracking performance was improved under the premise of the invariable carrier frequency. The simulationand experimental results are in accordance with the basic theoretical analysis,and the current loop band-width of frequency band can be nearly increased by double.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016 - 09 - 12
基金项目: 国家自然科学基金( F010507) ; 陕西省教育厅科研计划项目资助( 17JK0398) ; 西安市科技计划项目( 2017076CG/RC039( XAHK002) )
作者简介: 肖海峰( 1977—) ,男,博士,研究方向为电机非线性控制;
贺昱曜( 1951—) ,男,教授,博士生导师,研究方向为非线性控制;
乔社娟( 1982—) ,女,高级工程师,硕士,研究方向为非线性控制。
更新日期/Last Update: 2018-07-02