| 低成本无位置传感器永磁电机在空调压缩机中的应用 |
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| 引用本文： | 原熙博,李永东,冯丽超.低成本无位置传感器永磁电机在空调压缩机中的应用[J].电气传动,2009,39(5). |
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| 作者姓名： | 原熙博 李永东 冯丽超 |
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| 作者单位： | 清华大学,电机工程与应用电子技术系,北京,100084 |
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| 摘 要： | 空调压缩机控制系统作为空词系统的核心部分要求具有低成本、高性能、高效率的特点.提出一种永磁同步电机一压缩机无位置传感器控制方案.通过对直流母线电压、电流采样,结合逆变器开关状态实现定子相电压和相电流的重构.根据压缩机通常运行在高速区的特点.采用改进电压模型的反电势积分方法对磁链和转速进行估算,实现了永磁同步电机无速度传感器的矢量控制.对电流采样过程中存在的问题进行了深入的分析,并提出解决方法.实验结果验证了控制方案的可行性,并成功应用于空调系统,在提高系统性能的同时,降低了系统成本.
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| 关 键 词： | 永磁同步电机 无速度传感器控制 空调压缩机 电流重构 |
Low Cost Sensor-less Control of PMSM for Air-conditioner Compressor Application |
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| YUAN Xi-bo,LI Yong-dong,FENG Li-chao.Low Cost Sensor-less Control of PMSM for Air-conditioner Compressor Application[J].Electric Drive,2009,39(5). |
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| Authors: | YUAN Xi-bo LI Yong-dong FENG Li-chao |
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| Affiliation: | YUAN Xi-bo,LI Yong-dong,FENG Li-chao(Department of Electrical Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Compressor control system should have the characteristic of low cost, robust performance and high efficiency as the critical part in air-conditioner system.A complete sensor-less PMSM-compressor vector control scheme was presented. Phase voltage and current are derived from DC voltage,DC current and inverter switching states. A back-EMF integration combined with improved voltage model is used for estimating rotor flux and speed in the high speed region. Detailed analysis was given concerning the specific cu... |
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| Keywords: | permanent magnet synchronous motor (PMSM) sensor-less control air-conditioner compressor current derivation |
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