| 异步电机定子磁链观测方法的改进研究 |
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| 引用本文： | 刘刚,林都,任一峰,赵敏. 异步电机定子磁链观测方法的改进研究[J]. 电气传动, 2010, 40(8) |
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| 作者姓名： | 刘刚 林都 任一峰 赵敏 |
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| 作者单位： | 1. 中北大学,信息与通信工程学院,山西,太原,030051
2. 北京茨浮测控技术研究所,北京,101101 |
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| 摘 要： | 针对传统直接转矩控制电压模型定子磁链观测器存在的直流偏移和初始值偏差问题,在传统改进算法的基础上,通过交换低通滤波环节与补偿环节的相对位置,提出了一种新型磁链观测器.理论分析和仿真结果表明,新算法能够消除低通滤波器磁链动态观测误差,在有效抑制饱和与直流漂移的同时,完全补偿相位和幅值误差,提高了磁链观测精度.
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| 关 键 词： | 直接转矩控制 定子磁链观测器 低通滤波器 |
Improvement Research of Induction Motor Stator Flux Observation Method |
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| LIU Gang,LIN Du,REN Yi-feng,ZHAO Min. Improvement Research of Induction Motor Stator Flux Observation Method[J]. Electric Drive, 2010, 40(8) |
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| Authors: | LIU Gang LIN Du REN Yi-feng ZHAO Min |
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| Affiliation: | LIU Gang1,LIN Du1,REN Yi-feng1,ZHAO Min2 (1.School of Information & Communication Engineering,North University of China,Taiyuan 030051,Shanxi,China,2.Academy of Beijing Servo Technology,Beijing 101101,China) |
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| Abstract: | For the errors caused by DC drift and initial value in voltage model based flux estimation of direct torque control system,a new stator flux observer based on exchange the sequence of the compensator and low-pass filter was proposed.Theory analysis and simulation result show that dynamic error is diminished and new theory can effectively restrain the saturation feedback and DC drift while the phase and amplitude errors can be compensation by adjust the cut-off frequency of low-pass filter in real time,impro... |
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| Keywords: | direct torque control stator flux observer low-pass filter |
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