| 基于三次谐波检测的直流无刷电机无位置传感器控制系统仿真研究 |
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| 引用本文： | 陈前,刘国海,赵文祥,颜黎浩.基于三次谐波检测的直流无刷电机无位置传感器控制系统仿真研究[J].微电机,2011,44(5):36-40. |
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| 作者姓名： | 陈前 刘国海 赵文祥 颜黎浩 |
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| 作者单位： | 江苏大学,电气信息工程学院,镇江,212013 |
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| 基金项目： | 国家自然科学基金项目，江苏自然科学基金项目 |
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| 摘 要： | 分析了永磁无刷直流(BLDC)电机的数学模型,提出了一种通过三次谐波过零脉冲信号估算转速和位置的方法,实现了基于三次谐波反电势的BLDC电机无位置传感器控制。在Matlab/Simulink仿真环境中,采用电流滞环控制以及转速PI控制方式构建了BLDC电机的无传感器仿真平台。在速度和位置估算仿真模块中,用离散的速度和位置信号代替传统仿真中的连续信号。通过仿真结果分析,验证了三次谐波检测及所提出的速度和位置估算方法的可行性。
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| 关 键 词： | 三次谐波 仿真 永磁电机 无位置传感器运行 |
Simulation of Sensorless Control of Brushless Machines by Detecting Third Harmonic Back-EMF |
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| CHEN Qian,LIU Guohai,ZHAO Wenxiang,YAN Lihao.Simulation of Sensorless Control of Brushless Machines by Detecting Third Harmonic Back-EMF[J].Micromotors,2011,44(5):36-40. |
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| Authors: | CHEN Qian LIU Guohai ZHAO Wenxiang YAN Lihao |
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| Affiliation: | CHEN Qian,LIU Guohai,ZHAO Wenxiang,YAN Lihao(Jiangsu University,Zhenjiang Jiangsu 212013,China) |
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| Abstract: | Based on the mathematical model of the brushless DC(BLDC) motor,this paper proposed a method to estimate speed and position,achieving the sensorless control by detecting the third harmonic back-EMF.The simulation was built in Matlab/Simulink.A PI controller for the speed loop and a hysteresis controller for current loop were adopted in the developed system simulation model,respectively.The module of estimating speed and position used the discrete speed and position signal instead of the continuous signal.Th... |
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| Keywords: | third harmonic simulation permanent magnet machine sensorless operation |
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