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[1]刘和平,苗轶如,刘静,等.带新型死区补偿策略的感应电机磁链转速观测器[J].电机与控制学报,2019,23(03):1-10.[doi:10.15938/j.emc.2019.02.001]
 LIU He-ping,MIAO Yi-ru,LIU Jing,et al.Induction motor flux and speed observers with a dead-time compensation strategy[J].,2019,23(03):1-10.[doi:10.15938/j.emc.2019.02.001]
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带新型死区补偿策略的感应电机磁链转速观测器
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
23
期数:
2019年03
页码:
1-10
栏目:
出版日期:
2019-03-15

文章信息/Info

Title:
Induction motor flux and speed observers with a dead-time compensation strategy
作者:
 刘和平1 苗轶如1 刘静2 黄远胜1 黄鹏1 郭强3
 ( 1. 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044; 2. 国网江苏省电力有限公司检修分公司,南京211102; 3. 重庆理工大学重庆市能源互联网工程技术研究中心,重庆400054)
Author(s):
 LIU He-ping1 MIAO Yi-ru1 LIU Jing2 HUANG Yuan-sheng1HUANG Peng1 GUO Qiang3
 ( 1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044,China; 2. State Grid Jiangsu Electric Power Maintenance Branch Company,Nanjing 211102,China;
3. Chongqing Engineering Research Center of Energy Internet,Chongqing University of Technology,Chongqing 400054,China)
关键词:
 感应电机 磁链观测 转速观测 死区补偿 二阶高通滤波器 谐波畸变
Keywords:
 induction machine flux observer speed observer dead-time compensation second order high-pass filter total harmonic distortion
分类号:
TM 761
DOI:
10.15938/j.emc.2019.02.001
文献标志码:
A
摘要:
感应电机转子磁链观测准确与否直接影响电机的控制性能。传统的电压、电流磁链观测模型在低速时观测结果存在显著的幅值误差和相位滞后问题。采用电压- 电流混合模型构成闭环磁链观测器,将混合模型的磁链角作为反馈实现电流模型的转子磁链定向,避免了检测转子的速度或瞬时角度; 并采用模型参考自适应法,将混合模型得到的转子磁链作为参考模型,电流模型作为可调模型,转速误差信息经PI 调节获得准确的转子角频率。为了抑制死区效应对观测器性能的影响,提出一种相电压对称补偿策略,消除了输出电压的偏移,并辅助一种新型滤波器,有效滤除高频分量,提高电流极性判断的精确性。通过仿真和实验测试验证了所提方法的可行性及有效性。
Abstract:
 The accuracy of rotor flux observation of induction motor influences the performance of motor controlling directly. There are some problems in the traditional voltage observation model and current observation model,such as amplitude error,phase lag of flux in low speed. This paper used voltage-current mixed model to build closed-loop flux observer,and set the flux angel of the mixed model as feedback to implement the rotor flux orientation,so as to avoid checking rotor speed. It applied model reference adaptive system
( MRAS) to set the rotor flux which was based on the mixed model as reference model,and set the current model as adjustable model. So the accurate rotor speed was obtained after PI adjustment.In order to eliminate dead-time effect,this paper presented a symmetrical dead-time compensation method. Through the independent drive signal,the offset of output voltage was removed. Furthermore designed a second order high-pass filter which filtered high-frequency component effectively and increased the accuracy of current polarity judgment. Both simulation and experiment results prove the desired performance of the proposed method.

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备注/Memo

备注/Memo:
收稿日期: 2017 - 01 - 25
基金项目: 重庆市基础科学与前沿技术研究资助项目( cstc2016jcyjA1527)
作者简介: 刘和平( 1957—) ,男,博士,教授,博士生导师,研究方向为电机控制、电动汽车电机优化设计;
苗轶如( 1988—) ,男,博士研究生,研究方向为电流源型逆变器电机驱动系统的控制策略;
刘静( 1991—) ,女,硕士研究生,研究方向为电机及驱动控制;
黄远胜( 1995—) ,男,硕士研究生,研究方向为电力电子变换器的建模与控制;
黄鹏( 1994—) ,男,硕士研究生,研究方向为电压源型逆变器的调制与控制;
郭强( 1984—) ,男,博士,讲师,研究方向为大功率整流器、新型逆变器、汽车电子等。
通信作者: 刘静
更新日期/Last Update: 2019-03-27