Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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用于無(wú)刷直流電機(jī)無(wú)位置控制的轉(zhuǎn)子磁鏈觀測(cè)器設(shè)計(jì)

來(lái)源:電工電氣發(fā)布時(shí)間:2018-11-21 09:21 瀏覽次數(shù):652
用于無(wú)刷直流電機(jī)無(wú)位置控制的轉(zhuǎn)子磁鏈觀測(cè)器設(shè)計(jì)
 
徐波,楊燁
(南京理工大學(xué) 自動(dòng)化學(xué)院,江蘇 南京 210094)
 
    摘 要:針對(duì)無(wú)刷直流電機(jī)無(wú)位置控制中濾波器會(huì)引起磁鏈幅值和位置估計(jì)誤差等問(wèn)題,設(shè)計(jì)了一種能夠抑制直流偏移獲取準(zhǔn)確位置的改進(jìn)型轉(zhuǎn)子磁鏈觀測(cè)器。通過(guò)將二階高通濾波器和純積分器進(jìn)行串聯(lián),可以有效減小位置估計(jì)誤差。在基于控制器STM320F28335 的實(shí)驗(yàn)平臺(tái)上實(shí)驗(yàn),結(jié)果表明改進(jìn)型轉(zhuǎn)子磁鏈觀測(cè)器能夠準(zhǔn)確估計(jì)轉(zhuǎn)子位置,有效改善電流波形,實(shí)現(xiàn)電機(jī)的平穩(wěn)高速運(yùn)行。
    關(guān)鍵詞:無(wú)刷直流電機(jī);無(wú)位置控制;轉(zhuǎn)子磁鏈觀測(cè)器;位置估計(jì)
    中圖分類號(hào):TM351     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2018)11-0005-05
 
Rotor Flux Observer Design for Sensorless Control of Brushless Direct Current Motor
 
XU Bo, YANG Ye
(School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China)
 
    Abstract: In order to solve the problem of the amplitude and position estimation error of the magnetic chain, caused by the filter in the sensorless control of the brushless direct current (DC) motor, this paper designed a kind of improved rotor flux observer, which can restrain the accurate location of the DC offset. By combining two order high-pass filter and pure integrator, the position estimation error could be effectively reduced. The experiment on the experimental platform based on the controller STM320F28335 shows that the improved rotor flux observer can accurately estimate the rotor position, improve the current waveform effectively, and realize the smooth and high speed operation of the motor.
    Key words: brushless direct current motor; sensorless control; rotor flux observer; location estimation
 
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