本文關(guān)鍵詞： 永磁同步電機(jī) 伺服驅(qū)動(dòng)器 故障檢測(cè) 可靠試驗(yàn) 可靠性評(píng)估　出處：《浙江理工大學(xué)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：永磁同步電機(jī)效率高、轉(zhuǎn)動(dòng)慣量低、動(dòng)態(tài)影響快,被廣泛地應(yīng)用于數(shù)控機(jī)床、電動(dòng)汽車(chē)、自動(dòng)生產(chǎn)設(shè)備等工業(yè)產(chǎn)品。永磁同步電機(jī)的穩(wěn)定運(yùn)行須由與之匹配的伺服驅(qū)動(dòng)器控制完成,二者共同構(gòu)成伺服驅(qū)動(dòng)系統(tǒng)。目前,國(guó)產(chǎn)永磁同步電機(jī)與驅(qū)動(dòng)器可靠性與國(guó)外成熟產(chǎn)品相比差距較大。國(guó)內(nèi)中、高檔數(shù)控設(shè)備所用伺服驅(qū)動(dòng)系統(tǒng)基本由日本發(fā)那科公司、德國(guó)德瑪吉公司、德國(guó)西門(mén)子公司等為代表的少數(shù)公司所壟斷。為提高我國(guó)伺服電機(jī)及其驅(qū)動(dòng)器可靠性水平,增強(qiáng)我國(guó)數(shù)控裝備制市場(chǎng)競(jìng)爭(zhēng)力,本文對(duì)永磁同步電機(jī)及與之匹配的驅(qū)動(dòng)器為研究對(duì)象,開(kāi)展伺服驅(qū)動(dòng)系統(tǒng)可靠性試驗(yàn)研究,目標(biāo)是通過(guò)開(kāi)展可靠性試驗(yàn),獲取當(dāng)前可靠性水平以及暴露潛在設(shè)計(jì)缺陷知薄弱環(huán)節(jié),為改進(jìn)產(chǎn)品設(shè)計(jì)提供技術(shù)支撐。本文主要研究?jī)?nèi)容與結(jié)論如下:第一章,闡述了論文研究的背景、目的和意義;概述了永磁同步電機(jī)及相關(guān)驅(qū)動(dòng)技術(shù)的國(guó)內(nèi)外現(xiàn)狀;綜述了逆變器失效、驅(qū)動(dòng)電路故障、定子電流幅值波動(dòng)等故障檢測(cè)方法的研究現(xiàn)狀,以及永磁同步電機(jī)與驅(qū)動(dòng)器可靠性試驗(yàn)技術(shù)的研究現(xiàn)狀,確定了恒定應(yīng)力加速試驗(yàn)可用于永磁同步電機(jī)與驅(qū)動(dòng)器;提出了本論文的主要研究?jī)?nèi)容。第二章,分析確定了永磁同步電機(jī)與驅(qū)動(dòng)器組成和工作原理;通過(guò)理論分析和仿真試驗(yàn),確定了定子匝間短路、斷路故障、定子電流幅值波動(dòng)、定子電流波形畸變等故障發(fā)生的主要原因以及確定了高溫、大負(fù)載是導(dǎo)致上述故障的主要應(yīng)力因素;為設(shè)計(jì)、實(shí)施永磁同步電機(jī)與驅(qū)動(dòng)器可靠性試驗(yàn)提供了技術(shù)支撐。第三章,針對(duì)目前永磁同步電機(jī)與驅(qū)動(dòng)器故障檢測(cè)方法存在的準(zhǔn)確性差、效率低等不足,依據(jù)負(fù)序分量計(jì)算原理,對(duì)負(fù)序分量矢量角度與矢量幅值進(jìn)行重新定義并合成新的負(fù)序矢量,在此基礎(chǔ)上提出了一種綜合利用電流負(fù)序模長(zhǎng)和矢量角兩個(gè)指標(biāo)檢測(cè)定子電流幅值波動(dòng)和波形畸變的方法;然后,通過(guò)試驗(yàn)分析驗(yàn)證了該方法的有效性,為在可靠性試驗(yàn)過(guò)程中對(duì)永磁同步電機(jī)與驅(qū)動(dòng)器的故障時(shí)間進(jìn)行實(shí)時(shí)檢測(cè)提供了技術(shù)方法。第四章,結(jié)合永磁同步電機(jī)與驅(qū)動(dòng)器的額定設(shè)計(jì)參數(shù),設(shè)計(jì)了永磁同步電機(jī)與驅(qū)動(dòng)器可靠性試驗(yàn)裝置;開(kāi)展了可靠性試驗(yàn),并利用本文提出的故障檢測(cè)可靠性試驗(yàn)方法對(duì)采集的定子電流幅值信息進(jìn)行分析,獲得故障發(fā)生時(shí)間;在此基礎(chǔ)上,利用圖分析法和擬合優(yōu)度檢驗(yàn),確定了永磁同步電機(jī)與驅(qū)動(dòng)器的壽命服從威布爾分布;利用極大似然估計(jì)獲得了可靠壽命,實(shí)現(xiàn)了對(duì)永磁同步電機(jī)與驅(qū)動(dòng)器可靠性的評(píng)價(jià)。第五章,總結(jié)了全文的研究工作,提出了后續(xù)相關(guān)工作的研究展望。
[Abstract]:Permanent magnet synchronous motor (PMSM) is widely used in CNC machine tools and electric vehicles because of its high efficiency, low moment of inertia and fast dynamic effect. The stable operation of permanent magnet synchronous motor (PMSM) must be controlled by a servo driver matched with PMSM. Both of them constitute a servo drive system. The reliability of domestic permanent magnet synchronous motor and drive is far from that of foreign mature products. In China, the servo drive system used in high-grade numerical control equipment is basically made up of Japanese Fonaco Company and German Demaghi Company. In order to improve the reliability level of servo motors and drivers in China and enhance the market competitiveness of China's numerical control equipment system, Siemens Company of Germany is monopolized by a small number of representative companies. In this paper, the permanent magnet synchronous motor and its matching driver as the research object, the servo drive system reliability test research, the goal is to carry out reliability test. Obtain the current reliability level and exposure of potential design defects to provide technical support for improving product design. The main contents and conclusions of this paper are as follows: chapter 1, the background of this paper is described. Purpose and significance; The current situation of PMSM and related driving technology at home and abroad is summarized. The research status of fault detection methods such as inverter failure driving circuit fault stator current amplitude fluctuation and the reliability test technology of permanent magnet synchronous motor and driver are summarized in this paper. It is determined that the constant stress acceleration test can be used in permanent magnet synchronous motor and actuator. In the second chapter, the composition and working principle of PMSM and PMSM are analyzed and determined. Through theoretical analysis and simulation test, the main causes of stator inter-turn short circuit, open circuit fault, stator current amplitude fluctuation, stator current waveform distortion and high temperature are determined. Large load is the main stress factor that causes the above faults; For the design and implementation of permanent magnet synchronous motor and driver reliability test provides a technical support. Chapter three, aimed at the current permanent magnet synchronous motor and driver fault detection methods are poor accuracy, low efficiency and other shortcomings. According to the calculation principle of negative ordered component, the angle and amplitude of negative ordered component vector are redefined and a new negative ordered vector is synthesized. On the basis of this, a method of detecting the amplitude fluctuation and waveform distortion of stator current by using two indexes of current negative sequence mode length and vector angle is put forward. Then, the effectiveness of the method is verified by experimental analysis, which provides a technical method for real-time detection of the fault time of PMSM and actuator during the reliability test. Chapter 4th. Combined with the rated design parameters of permanent magnet synchronous motor and actuator, the reliability test device of permanent magnet synchronous motor and driver is designed. The reliability test is carried out, and the fault occurrence time is obtained by analyzing the amplitude information of the stator current collected by using the fault detection reliability test method proposed in this paper. On this basis, the distribution of service life of PMSM and driver is determined by using graph analysis method and goodness of fit test. The reliability of PMSM and PMSM is evaluated by maximum likelihood estimation (MLE). Chapter 5th summarizes the research work in this paper and puts forward the research prospect of the related work in the future.
【學(xué)位授予單位】：浙江理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TM341

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本文編號(hào)：1461286