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首頁(yè)> 外文OA文獻(xiàn) >Analiza kvarnih stanja rotora vektorski upravljanog asinkronog stroja bez mehani?kog senzora brzine vrtnje
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Analiza kvarnih stanja rotora vektorski upravljanog asinkronog stroja bez mehani?kog senzora brzine vrtnje

機(jī)譯：沒(méi)有機(jī)械速度傳感器的矢量控制異步電機(jī)的轉(zhuǎn)子故障狀態(tài)分析

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In the paper an analysis of the Direct Field Control of induction motor drive with broken rotor bars is presented. A drive system with and without a mechanical speed sensor is analyzed. In the sensorless induction motor (IM) drive the rotor flux and speed is reconstructed with the use of a MRASCC estimator, where the induction motor is used as a reference model. The stator current estimator and current model of the rotor flux are used as adapted models. Most of the speed estimators used in sensorless drives are sensitive to motor parameter changes, especially to the rotor resistance changes. The proposed MRASCC estimator is very robust to all motor parameter changes, hence it should work properly in a faulty rotor. In the paper simulation and experimental results of the sensorless IM drive with broken rotor bars are presented. Characteristic frequency harmonics of the IM state variables connected with the broken rotor bars are introduced. The low speed region and the dynamic properties of the IM drive with rotor faults are tested. The range of stable work of the control system is shown.
機(jī)譯：在本文中，對(duì)轉(zhuǎn)子條損壞的感應(yīng)電動(dòng)機(jī)驅(qū)動(dòng)的直接磁場(chǎng)控制進(jìn)行了分析。分析具有和不具有機(jī)械速度傳感器的驅(qū)動(dòng)系統(tǒng)。在無(wú)傳感器感應(yīng)電動(dòng)機(jī)（IM）驅(qū)動(dòng)器中，使用MRASCC估算器重建轉(zhuǎn)子磁通和速度，其中感應(yīng)電動(dòng)機(jī)用作參考模型。定子電流估計(jì)器和轉(zhuǎn)子磁通的電流模型用作適應(yīng)模型。無(wú)傳感器驅(qū)動(dòng)器中使用的大多數(shù)速度估算器對(duì)電機(jī)參數(shù)變化（特別是轉(zhuǎn)子電阻變化）敏感。擬議的MRASCC估計(jì)器對(duì)于所有電動(dòng)機(jī)參數(shù)變化都非?？煽浚虼嗽诠收限D(zhuǎn)子中應(yīng)能正常工作。在本文中，介紹了轉(zhuǎn)子棒斷裂的無(wú)傳感器IM驅(qū)動(dòng)器的仿真和實(shí)驗(yàn)結(jié)果。介紹了與損壞的轉(zhuǎn)子條相連的IM狀態(tài)變量的特征頻率諧波。測(cè)試了具有轉(zhuǎn)子故障的IM驅(qū)動(dòng)器的低速區(qū)域和動(dòng)態(tài)特性。顯示了控制系統(tǒng)穩(wěn)定工作的范圍。

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