【正文】 哈爾濱工業(yè)大學(xué)（威海）本科畢業(yè)設(shè)計(jì) 論文 I 摘 要 為 適應(yīng)未來(lái)深空探測(cè)和星際旅行的技術(shù)需要，電推進(jìn)裝置取代傳統(tǒng)化學(xué)推力器已經(jīng)成為航天推進(jìn)領(lǐng)域發(fā)展的必然趨勢(shì)。霍爾推力器具有高效率、高比沖以及高可靠性等優(yōu)點(diǎn)，自從 1970 年成功研制以來(lái)，已經(jīng)廣泛用于各種實(shí)際飛行任務(wù)，成為世界各航天大國(guó)電推進(jìn)裝置研究中的熱點(diǎn)， 而當(dāng)前我國(guó) 在這方面的研究存在很大的空缺，為此哈爾濱工業(yè)大學(xué)等離子推進(jìn)技術(shù)研究所從俄羅斯引進(jìn)了 ATON 型霍爾推力器 ，并對(duì)其進(jìn)行了深入的研究。推力器的磁場(chǎng)位形及磁感應(yīng)強(qiáng)度是影響其性能的主要因素之一，通常實(shí)驗(yàn)室條件下采用的是單獨(dú)勵(lì)磁的模式，而在實(shí)際航天應(yīng)用 通常采 用的是自勵(lì)磁的模式，這樣可以大大的減少推力的重量與其所攜帶的電源 數(shù)量，因此也大大的提高了其工作穩(wěn)定性，本文主要是針對(duì)由單獨(dú)勵(lì)磁轉(zhuǎn)換為自勵(lì)磁時(shí)進(jìn)行了初步的探索，首先對(duì)單獨(dú)勵(lì)磁轉(zhuǎn)換為自勵(lì)磁時(shí)內(nèi)線(xiàn)圈的空間問(wèn)題進(jìn)行了軟件仿真與實(shí)驗(yàn)研究，然后根據(jù)其結(jié)果我們找出了在 ATON 機(jī)型上能夠轉(zhuǎn)換為自勵(lì)磁的區(qū)域，在該區(qū)域內(nèi)針對(duì)某一工況點(diǎn)在單獨(dú)勵(lì)磁模式下與自勵(lì)磁模式下的工作特性進(jìn)行了對(duì)比分析，最后我們對(duì)自勵(lì)磁霍爾推力器放電穩(wěn)定性問(wèn)題進(jìn)行了探索性研究 。 關(guān)鍵詞 漏磁；單獨(dú)勵(lì)磁；自勵(lì)磁；低頻振蕩 哈爾濱工業(yè)大學(xué)（威海）本科畢業(yè)設(shè)計(jì) 論文 II Abstract In order to meet future deepspace exploration and interplaary travel technology needs, electric propulsion thrusters to replace the traditional chemical field of space propulsion has bee the inevitable trend of development. Hall thruster with high efficiency, high specific impulse and high reliability, etc has been successfully developed since 1970, and widely used for various practical mission to bee the world39。s space powers electric propulsion research in the hot, but the current in this area of our country is a big vacancy, Harbin Institute of Technology of Plasma propulsion technology generate from Russia introduced ATON thruster models, and its indepth study. Magic field shape and the magic induction of the thruster is one of the main factors affecting the performance , and was usually using the separate excitation mode under laboratory conditions. But in practice it is monly using the selfexcitation whitch can the cut the number of ponents they carry that can greatly improve the stability of their work. This paper is directed by a preliminary exploration when the separate excitation changed to selfexcitation. First, according to the convert from the excitation of the coil space problem ,we used the software simulation and experimental research, and based on the results we find the area whitch can be converted to selfexcitation in the ATON models. In the region according to a particular operating point in the separate and selfexcitation, we pared and analyzed the operating characteristics. And finally we made the explorative study about the discharge stability of the selfexcitation. Key words field leakage flux, independent excitation, selfexcitation, selfexcitation 哈爾濱工業(yè)大學(xué)（威海）本科畢業(yè)設(shè)計(jì) 論文 III 目 錄 摘 要 ........................................................................................................................... I Abstract ........................................................................................................................II 第 1 章 緒論 .............................................................................................................. 1 課題的來(lái)源以及研究的目的和意義 ............................................................ 1 課題的來(lái)源 .......................................................................................... 1 研究的目的和意義 .............................................................................. 1 霍爾推力器的勵(lì)磁模式 ................................................................................ 2 國(guó)內(nèi)外在該方向的研究現(xiàn)狀及分析 ............................................................. 5 本文主要研究?jī)?nèi)容 ......................................................................................... 7 第 2 章 自勵(lì)磁霍爾推力器設(shè)計(jì) .............................................................................. 8 引言 ................................................................................................................ 8 實(shí)驗(yàn)系統(tǒng)與軟件介紹 .................................................................................... 8 實(shí)驗(yàn)系統(tǒng)的介紹 .................................................................................. 8 FEMM 軟件的介紹 .............................................................................. 9 高斯計(jì)的使用與介紹 ........................................................................ 11 自勵(lì)磁霍爾推力器磁場(chǎng)等效 ...................................................................... 12 內(nèi)磁芯打薄 ........................................................................................ 13 打薄后的應(yīng)力問(wèn)題 ............................................................................ 15 打薄后對(duì)磁場(chǎng)的影響 ........................................................................ 17 磁芯變粗后的分析 ............................................................................ 21 本章小結(jié) ...................................................................................................... 22 第 3 章 自勵(lì)磁霍爾推力器工作特性區(qū)域的研究 .................................................. 23 霍爾推力器推力的測(cè)試方法 ...................................................................... 23 自勵(lì)磁霍爾推力器工作區(qū)域研究 .............................................................. 24 實(shí)驗(yàn)的方法與測(cè)量結(jié)果 .................................................................... 24 實(shí)驗(yàn)結(jié)果分析 .................................................................................... 26 小結(jié) .............................................................................................................. 29 第 4 章 自勵(lì)磁霍爾推力器工作特性與穩(wěn)定性分析 .............................................. 30 引言 .............................................................................................................. 30 自勵(lì)磁霍爾推力器工作特性的研究 .......................................................... 30 實(shí)驗(yàn)設(shè)計(jì) ............................................................................................ 30 實(shí)驗(yàn)結(jié)果 ............................................................................................ 31 哈爾濱工業(yè)大學(xué)（威海）本科畢業(yè)設(shè)計(jì) 論文 IV 實(shí)驗(yàn)結(jié)果分析 .................................................................................... 34 自勵(lì)磁霍爾推力器的穩(wěn)定性研究 .............................................................. 36 實(shí)驗(yàn)設(shè)計(jì) ............................................................................................ 36 實(shí)驗(yàn)結(jié)果與分析 .............................