本文選題：開關(guān)磁阻電機(jī) + 分布式繞組��； 參考：《北京交通大學(xué)》2014年博士論文

【摘要】：我國大多數(shù)油田為低滲透的低能、低產(chǎn)油田,需要靠人工舉升方法把石油從井下提出到地面上,潛油泵作為其中一種人工舉升方法廣泛應(yīng)用于油田。目前,潛油泵電機(jī)主要有異步電機(jī)和永磁同步電機(jī),前者低速運(yùn)行轉(zhuǎn)矩性能差,后者需要永磁體存在高溫退磁現(xiàn)象。 開關(guān)磁阻電機(jī)(Switched Reluctance Motor,簡稱SRM)調(diào)速系統(tǒng)是一種先進(jìn)的機(jī)電一體化裝置,不需要永磁體,啟動轉(zhuǎn)矩大,可靠性高,適合于井下潛油泵應(yīng)用。但是,傳統(tǒng)三相SRM調(diào)速系統(tǒng)需要6根電纜連接功率變換器和電機(jī)繞組,電纜根數(shù)較多、成本較高,限制了其井下潛油泵應(yīng)用。 本文提出新型的分布式繞組開關(guān)磁阻電機(jī),功率變換器到電機(jī)繞組兩端僅需要3根電纜,很大程度上節(jié)約了驅(qū)動系統(tǒng)成本。論文系統(tǒng)研究了該新電機(jī)的基本結(jié)構(gòu)、運(yùn)行原理、數(shù)學(xué)建模以及控制策略等問題。最后,加工制作了試驗(yàn)樣機(jī),并進(jìn)行了試驗(yàn)分析和驗(yàn)證。 論文主要研究內(nèi)容及成果包括以下幾個(gè)方面： 1、提出新型的分布式繞組開關(guān)磁阻電機(jī),論述了新型電機(jī)的工作原理,以及在標(biāo)準(zhǔn)橋式功率變換器驅(qū)動下的控制策略。 2、對該電機(jī)進(jìn)行有限元分析,分別對其磁場分布、磁通密度、自感、互感以及輸出轉(zhuǎn)矩等電磁特性進(jìn)行計(jì)算,并和傳統(tǒng)型SRM對比。 3、提出新型電機(jī)磁網(wǎng)絡(luò)模型,推導(dǎo)其線性和非線性靜態(tài)模型,線性模型用于快速分析該分布式繞組SRM的特性,非線性模型用于精確計(jì)算電機(jī)電磁特性,并將非線性模型計(jì)算的結(jié)果和有限元法對比,驗(yàn)證提出的非線性數(shù)學(xué)模型的有效性。 4、應(yīng)用狀態(tài)空間法,建立新型SRM的動態(tài)仿真模型。通過新型SRM驅(qū)動系統(tǒng)的場路耦合聯(lián)合仿真,驗(yàn)證提出的新電機(jī)狀態(tài)空間模型的正確、有效,并對比分析了傳統(tǒng)SRM和新型SRM的輸出轉(zhuǎn)矩以及轉(zhuǎn)矩脈動等特性。所建立的動態(tài)模型,可用于動態(tài)仿真,比場路耦合聯(lián)合仿真節(jié)約大量時(shí)間。 5、對傳統(tǒng)SRM的光電編碼器進(jìn)行改進(jìn),提出新型SRM的轉(zhuǎn)子位置檢測裝置,制作新型SRM的試驗(yàn)樣機(jī),構(gòu)建以TMS320F2812為控制芯片的驅(qū)動控制系統(tǒng)。 6、實(shí)驗(yàn)測量該新型SRM的靜態(tài)特性,并對新電機(jī)驅(qū)動系統(tǒng)進(jìn)行了電流斬波控制、角度位置控制以及動態(tài)性能等試驗(yàn),以驗(yàn)證該新型SRM的基本原理和控制策略,以及數(shù)學(xué)模型,為該新型電機(jī)實(shí)用化提供理論和試驗(yàn)基礎(chǔ)。
[Abstract]:Most oilfields in China are low-permeability low-energy and low-yield oilfields. It is necessary to raise oil from downhole to the surface by manual lifting method. Submersible oil pump is widely used in oil fields as one of the artificial lifting methods. At present, the submersible pump motor mainly includes asynchronous motor and permanent magnet synchronous motor, the former has poor performance of low speed running torque, and the latter needs permanent magnet to have high temperature demagnetization phenomenon. Switched Reluctance Motor (SRM) speed control system is an advanced electromechanical integration device, which does not need permanent magnet, has high starting torque and high reliability, and is suitable for application of downhole submersible pump. However, the traditional three-phase SRM speed regulation system needs 6 cables to connect power converter and motor winding, which limits the application of underground submersible pump because of more cable roots and higher cost. In this paper, a novel distributed winding switched reluctance motor (SRM) is proposed, in which only three cables are needed from the power converter to the two ends of the motor winding, which greatly saves the cost of the drive system. The basic structure, operation principle, mathematical modeling and control strategy of the new motor are systematically studied in this paper. Finally, the experimental prototype is made, and the test analysis and verification are carried out. The main contents and achievements of the thesis include the following aspects: 1. A new type of distributed winding switched reluctance motor is proposed. The working principle of the new motor and the control strategy driven by the standard bridge power converter are discussed. 2. The magnetic field distribution, flux density, self-inductance, mutual inductance and output torque of the motor are calculated by finite element analysis, and compared with the traditional SRM. 3. A new motor magnetic network model is proposed and its linear and nonlinear static models are derived. The linear model is used to quickly analyze the characteristics of the distributed winding SRM, and the nonlinear model is used to accurately calculate the electromagnetic characteristics of the motor. The results of the nonlinear model are compared with the finite element method to verify the validity of the proposed nonlinear mathematical model. 4. The dynamic simulation model of the new SRM is established by using the state space method. The state space model of the new motor is proved to be correct and effective through the field-circuit coupling joint simulation of the new SRM drive system. The output torque and torque ripple of the traditional SRM and the new SRM are compared and analyzed. The established dynamic model can be used in dynamic simulation, which saves a lot of time compared with the field circuit coupling joint simulation. 5. The traditional photoelectric encoder of SRM is improved, and a new type of SRM rotor position detecting device is put forward. The experimental prototype of new type SRM is made, and the driving control system based on TMS320F2812 is constructed. 6. The static characteristics of the new SRM are measured experimentally, and the current chopping control, angle position control and dynamic performance of the new motor driving system are tested to verify the basic principle, control strategy and mathematical model of the new SRM. It provides a theoretical and experimental basis for the practical application of the new motor.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TM301;TM352

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