【摘要】：基于四線(xiàn)式旋轉(zhuǎn)變壓器及AD2S1200芯片對(duì)叉車(chē)線(xiàn)控轉(zhuǎn)向永磁同步電機(jī)的轉(zhuǎn)子角度解碼展開(kāi)研究。設(shè)計(jì)功率放大電路對(duì)AD2S1200芯片輸出的正弦波信號(hào)進(jìn)行放大和濾波作為旋轉(zhuǎn)變壓器的正弦勵(lì)磁信號(hào),將旋轉(zhuǎn)變壓器輸出單端包含角度信息的正、余弦信號(hào)經(jīng)調(diào)制電路處理成AD2S1200需要的差模輸入信號(hào)。通過(guò)Freescale DSP芯片MC56F8367經(jīng)接口電路獲取轉(zhuǎn)換后的角度信息,利用一種數(shù)字濾波方法對(duì)角度信息進(jìn)行處理,最終獲得永磁同步電機(jī)轉(zhuǎn)子位置角度。實(shí)驗(yàn)證明,解碼角度準(zhǔn)確、波形平滑、實(shí)時(shí)性好,能夠滿(mǎn)足叉車(chē)線(xiàn)控轉(zhuǎn)向永磁同步電機(jī)控制需求。
[Abstract]:Based on four-wire rotary transformer and AD2S1200 chip, the rotor angle decoding of forklift line-controlled steering permanent magnet synchronous motor (PMSM) is studied. A power amplifier circuit is designed to amplify and filter the sine wave signal output by AD2S1200 chip as the sinusoidal excitation signal of the rotating transformer, and the output of the rotating transformer contains the positive angle information at one end. The cosine signal is processed into the differential mode input signal required by AD2S1200 by modulation circuit. Through the interface circuit of Freescale DSP chip MC56F8367, the converted angle information is obtained, and a digital filtering method is used to process the angle information, and finally the rotor position angle of permanent magnet synchronous motor (PMSM) is obtained. The experimental results show that the decoding angle is accurate, the waveform is smooth and the real-time performance is good, which can meet the control requirements of forklift line-controlled steering permanent magnet synchronous motor (PMSM).
【作者單位】： 天津工業(yè)大學(xué)電工電能新技術(shù)天津市重點(diǎn)實(shí)驗(yàn)室;天津工業(yè)大學(xué)電子與信息工程學(xué)院;
【基金】：天津市科技特派員項(xiàng)目(15JCTPJC56100) 天津市高等學(xué)�？萍及l(fā)展基金計(jì)劃項(xiàng)目(20130414)資助
【分類(lèi)號(hào)】：TH242;TM341

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