|本期目录/Table of Contents|

[1]杨阳,王庆年,龚依民,等.异步电机弱磁区转矩最大化策略[J].电机与控制学报,2017,21(12):51-59.[doi:10.15938/j.emc.2017.12.007]
 YANG Yang,WANG Qing-nian,GONG Yi-min,et al.Torque-maximizing field-weakening control of induction motors[J].,2017,21(12):51-59.[doi:10.15938/j.emc.2017.12.007]
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
21
期数:
2017年12
页码:
51-59
栏目:
出版日期:
2017-12-01

文章信息/Info

Title:
Torque-maximizing field-weakening control of induction motors
作者:
杨阳1 王庆年1 龚依民2 田恬2
(1. 吉林大学 汽车工程学院,吉林 长春 130021; 2. 吉林大学 物理学院,吉林 长春 130012)
Author(s):
YANG Yang1 WANG Qing-nian1 GONG Yi-min2 TIAN Tian2
(1. College of Automotive Engineering,Jilin University,Changchun 130021,China;2. College of Physics,Jilin University,Changchun 130012,China)
关键词:
异步电机 弱磁 转矩最大化 瞬态响应 铁损
Keywords:
induction motors field weakening maximum torque dynamic requirement iron losses
分类号:
TM 343
DOI:
10.15938/j.emc.2017.12.007
文献标志码:
A
摘要:
异步电机工作在弱磁区时,转矩随着转速的升高急剧下降,在转子磁场定向系统中,充分利用电机和逆变器的最大电压、电流限制,无需 d 轴电流控制器,通过调节 q 轴分量,稳定高速失步状态,实现弱磁区转矩最大化。异步电机在电压极限状态遇到干扰时,通过旋转定子电压矢量产生动态电压边缘,提高系统的瞬态响应。当异步电机运行在弱磁区,铁损增大,影响电机的磁链水平和转矩输出,引入铁损补偿机制,确保弱磁区的转矩最大化。仿真和实验证明,该控制系统能实现异步电机弱磁区转矩最大化,且具有很强的鲁棒性。
Abstract:
When an induction motor operates in the field weakening ranges,the output torque reduceswhile the speed increases. How to get the maximum torque becomes the main target. Based on the controlscheme of rotor-flux-oriented,the proposed method fully exploited the machine and converter capabilitieswithout the use of d-axis current controller. Maximum torque production in a higher speed range of fieldweakening was achieved by stabilizing the operating point at the pullout point through the q-axis compo-nent of the current applied across the stator. Operation at the voltage limited to dynamic changes,a tem-porary voltage margin was therefore created in a dynamic condition by deviating the trajectory of statorvoltage vector which improved the transient response of the system. Iron losses,which are traditionally ig-nored in the vector control scheme,increased rapidly in the high speed ranges and affected the magnitudeof rotor flux and output torque. The compensation of iron losses is necessary to ensure the torque maxi-mized. Simulation and experiments results prove that the proposed scheme provides good performance onthe steady-state and transient,and get the torque maximized in the field weakening ranges.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2017 - 03 - 13
基金项目: 国家自然科学基金( 21327803)
作者简介: 杨 阳( 1987—) ,男,博士研究生,研究方向为电机控制;
王庆年( 1952—) ,男,教授,博士生导师,研究方向为混合动力汽车驱动理论与控制技术;
龚依民( 1966—) ,男,教授,研究生导师,研究方向为新能源汽车发动机电控;
田 恬( 1992—) ,女,硕士研究生,研究方向为汽车电子与嵌入式系统。
更新日期/Last Update: 2018-03-19