艾勝 程思為 肖飛 曾啟帆 朱俊杰

摘 要：轉(zhuǎn)子位置檢測是實(shí)現(xiàn)永磁同步電機(jī)（PMSM）高性能控制的一個關(guān)鍵環(huán)節(jié)。由于檢測環(huán)節(jié)非理想特性的存在，旋轉(zhuǎn)變壓器的轉(zhuǎn)子位置檢測結(jié)果中會產(chǎn)生微小誤差，在電機(jī)振動噪聲指標(biāo)嚴(yán)格的領(lǐng)域，位置檢測誤差會對電機(jī)的振動噪聲產(chǎn)生不利影響。針對以上問題，本文首先對旋轉(zhuǎn)變壓器的位置檢測原理進(jìn)行了簡要分析，在此基礎(chǔ)上，對旋轉(zhuǎn)變壓器各種非理想特性進(jìn)行了分類和分析，得到了不同情況下的轉(zhuǎn)子位置誤差表達(dá)式。為消除可能出現(xiàn)的誤差對電機(jī)控制造成的影響，提出了一種位置檢測濾波算法，仿真和試驗(yàn)表明：所提出的算法能有效濾除旋變位置檢測誤差，同時不產(chǎn)生延時，應(yīng)用效果好。

關(guān)鍵詞：永磁同步電機(jī)；旋轉(zhuǎn)變壓器；位置檢測；誤差；濾波

DOI：10.15938/j.emc.（編輯填寫）

中圖分類號：TM93文獻(xiàn)標(biāo)志碼：A文章編號：1007-449X（2016）00-0000-00（編輯填寫）

Abstract： Rotor position sensing is a critical process in the high performance control of permanent magnet synchronous machines（PMSMs）. However， due to the presence of resolver non-idealities， the rotator position signal feedback of the resolver will inevitably have some small errors. Such errors will result in increased vibration and noise of the machine， which is not desirable in applications with stringent vibration and acoustic noise requirement. To solve the problem， this paper first reviews the position-sensing principle of the resolver briefly. By classifying and analyzing different types of resolver non-idealities， the paper introduces various rotor position error expressions due to different causes. To eliminate those errors in the control of the PMSM， the paper proposes a novel position feedback signal filtering method. Both simulation and experimental results show that the proposed method can effectively filter out the position errors without introducing any delay in the position signal， making it an excellent method for practical application.

Keywords： permanent magnet synchronous machine； resolver； position detection； error； filter