| 张耀中.基于改进型滑模观测器的变频洗衣机用PMSM无位置传感器控制[J].轻工机械,2015,33(4): |
| 基于改进型滑模观测器的变频洗衣机用PMSM无位置传感器控制 |
| Sensorless Control of PMSM for Washing Machine Based on Improved SMO-----ZHANG Yaozhong |
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| DOI：I0. 3969/j . issn. 1005 -2895. 2015. 04. 011 |
| 中文关键词: 变频洗衣机 永磁同步电机 无传感器控制 滑模观测器 解耦控制 |
| 英文关键词:wash machine Permanent Magnet Synchronous Motor ( PMSM ) sensorless control sliding mode observer
( SMO) decoupling control |
| 基金项目: |
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| 摘要点击次数: 1334 |
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| 中文摘要: |
| 针对永磁同步电机( PMSM)位置传感器成本高、维护难等问题，设计了一套用于变频洗衣机的PMSM无位置传
感器控制方案。采用改进型滑模观测器(SMO)实现电机转子位置与转速的估算，通过三电阻采样方式来检测三相电流，
有效地降低了系统成本。系统采用矢量控制模式，针对洗衣机负载波动大、运行速度高的特点，在电流内环设计中增加
了电压前馈补偿解耦控制环节，与传统PI调节器相比，该方案能够改善电流跟踪效果，提高控制性能。最后，在洗衣机
样机平台上进行了实验验证，实验结果证明该控制方案运行可靠，控制效果良好，能够满足洗衣机的工作要求。 |
| 英文摘要: |
| Due to the problems of position sensors installed on the permanent magnet synchronous motor ( PMSM ) . such
as high cost. difficult maintenance and so on. a novel method for sensorless control of PMSM was presented. which is
applied to washing machines. An improved sliding mode observer ( SMO) was used to estimate rotor position and speed
of the motor. Three-phase current was sampled through three shunt resistance. which greatly reduced the cost of the
system. In the proposed system, vector control mode was used. and decoupling control link based on voltage feed
forward compensation was added to the inner current loop for the characteristics of large load variations and high speed of
washing machine. Compared with traditional PI controller. this scheme can improve the current tracking effect as well as
the control performance. At last. the scheme is experimented in a washing machine prototype platform. The experiment
results show that the control strategy works reliably and has good controlling performance. which meets the requirements
of washing machines. |
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