| 引用本文: | 刘英培,栗 然,梁宇超.基于双滑模变结构PMSM直接转矩控制无传感器运行[J].电力自动化设备,2013,33(10): |
| LIU Yingpei,LI Ran,LIANG Yuchao.ensorless operation of PMSM by direct torque control based on double VSS[J].Electric Power Automation Equipment,2013,33(10): |
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| 摘要: |
| 提出基于双滑模变结构永磁同步电机（PMSM）直接转矩控制（DTC）无传感器运行。以电磁转矩误差、定子磁链误差和转速等信号作为磁链和转矩滑模控制器输入信号，其输出实现电压空间矢量调制，取代了传统DTC中滞环比较器和开关电压矢量选择表，有效地降低磁链和转矩脉动，并保证逆变器开关频率恒定；设计滑模观测器对转速进行准确估计，实现PMSM无传感器运行。仿真和实验结果验证了该方法的可行性和有效性。 |
| 关键词: 双滑模变结构 直接转矩控制 永磁同步电机 无传感器运行 模型 |
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| 基金项目:中央高校基本科研业务费专项基金资助项目（11QG57） |
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| ensorless operation of PMSM by direct torque control based on double VSS |
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LIU Yingpei1, LI Ran1, LIANG Yuchao2
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1.School of Electrical & Electronic Engineering，North China Electric Power University，
Baoding 071003，China;2.School of Electrical & Electronic Engineering，
North China Electric Power University，Beijing 102206，China
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| Abstract: |
| The sensorless operation of PMSM（Permanent Magnet Synchronous Motor） by the DTC（Direct Torque Control） based on double VSS（Variable Sliding Structure） is put forward，which takes the electromagnetic torque error，stator flux linkage error and speed as the inputs of VSS controller and realizes the voltage space vector modulation with its output. The hysteresis comparators in traditional DTC and the selection table of switching voltage space vector are replaced to effectively reduce the ripples of flux and torque and ensure the constant switching frequency of inverter. The rotor speed is accurately estimated by VSS observer to realize the sensorless operation of PMSM. Simulative and experimental results verify the feasibility and effectiveness of the proposed method. |
| Key words: double VSS direct torque control permanent magnet synchronous motor sensorless operation models |
