本文關(guān)鍵詞：開關(guān)磁阻電機全速度范圍無位置傳感器控制系統(tǒng)研究與設(shè)計　出處：《中國礦業(yè)大學》2014年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 開關(guān)磁阻電機 復平面電感模型 無位置傳感器 全速度范圍

【摘要】：開關(guān)磁阻電機（SRM）具有結(jié)構(gòu)簡單、控制靈活、容錯能力強等諸多優(yōu)點，而開關(guān)磁阻電機驅(qū)動系統(tǒng)（SRD）更是融合了交直流兩大調(diào)速系統(tǒng)的優(yōu)點，現(xiàn)已廣泛應(yīng)用于礦山開采、航空、電動車驅(qū)動、機床設(shè)備等諸多工業(yè)領(lǐng)域。而用于檢測轉(zhuǎn)子位置信息的位置傳感器給SRD帶來了系統(tǒng)可靠性降低、安裝調(diào)試不便、成本和復雜度增加等不利影響，成為SRM推廣普及的瓶頸，因此，SRM無位置傳感器控制技術(shù)研究具有極為重要的工程實用意義。本文針對SRM啟動及高低速驅(qū)動運行不同工作狀態(tài)，研究了一種基于復平面電感模型無位置控制方案。 本文首先對國內(nèi)外在SRM啟動及驅(qū)動運行不同工作狀態(tài)下轉(zhuǎn)子位置檢測技術(shù)的研究成果進行了總結(jié)，介紹了SRM工作原理、基礎(chǔ)數(shù)學方程及數(shù)學模型，討論了常用的控制策略和運行特性。 之后，本文采用了JMAG有限元和半周期激勵兩種方法對18.5kW實驗樣機進行了磁鏈特性曲線獲取，給出了兩種方法的磁鏈獲取原理及步驟，并通過了JMAG軟件對18.5kW SRM的磁通密度和磁場強度進行了三維有限元仿真分析，此外，文章還對以上兩種磁鏈獲取方法得到的18.5kW樣機磁鏈結(jié)果進行了分析。 再次，，本文針對SRM啟動、低速及高速驅(qū)動運行狀態(tài)下轉(zhuǎn)子位置檢測問題，提出了一種基于復平面電感模型的全速度范圍無位置傳感器控制方案。文章從復平面電感模型與轉(zhuǎn)子角度之間存在的函數(shù)關(guān)系入手對角度估計的原理進行了說明，并給出了利用SRM磁鏈特性求解復平面電感模型三項系數(shù)的方法，進一步分析了不同扇區(qū)內(nèi)角度估計的誤差。在此基礎(chǔ)之上，詳細闡述了啟動和低速驅(qū)動運行三相電感及高速驅(qū)動運行參考相電感獲取方法，給出了各狀態(tài)下參考相選擇規(guī)律，分析了電感飽和效應(yīng)對低速驅(qū)動運行時轉(zhuǎn)子角度估計的影響，并采取了三項系數(shù)補償措施以消除影響。通過MATLAB仿真對不同工作狀態(tài)下轉(zhuǎn)子位置檢測方法的可行性進行了驗證。此外，本文還給出了從啟動、低速到高速驅(qū)動運行全速度范圍無位置傳感器控制方案，并對方案中的高低速無位置算法的切換策略進行了可行性仿真驗證。 最后，本文介紹了無位置傳感器實驗平臺的軟硬件設(shè)計，并對提出的全速度范圍無位置控制算法進行了全面的實驗驗證，驗證結(jié)果表明本文提出的啟動、低速及高速驅(qū)動各運行狀態(tài)下的無位置傳感器控制算法均具有較高可行性。
[Abstract]:Switched reluctance motor (SRM) has the advantages of simple structure, flexible control, the advantages of fault tolerance, and switched reluctance motor drive system (SRD) is combining the advantages of two DC speed control system, has been widely used in mining, aviation, electric vehicles, machine tools and other equipment in many industrial fields for the position. The sensor for detecting the rotor position information brings the system reliability to reduce SRD, installation inconvenience, the adverse effects of cost and complexity increase, become a bottleneck, so the popularization of SRM, SRM on the technology for position sensor control has very important practical significance. This paper SRM start-up and high speed driving operation work state of a sensorless control scheme based on complex plane inductance model.
This paper first summarizes the research results of rotor position detection technology under different working conditions of SRM startup and drive operation at home and abroad, introduces the working principles, basic mathematical equations and mathematical models of SRM, and discusses the commonly used control strategies and operation characteristics.
Then, this paper uses JMAG finite element and semi periodic excitation of two methods in 18.5kW experimental prototype are the flux curve to obtain flux, two methods are given for the acquisition principle and steps, and through the JMAG software of 18.5kW SRM magnetic flux density and magnetic field of three dimensional finite element simulation analysis, in addition, 18.5kW the article also gets the prototype flux above two flux methods were analyzed.
Again, according to the SRM start, low and high speed driving rotor position detection problem of running condition, proposes a sensorless control scheme based on complex plane inductance model in full range of speed. The principle of the angle estimation are described with the function of the relationship between the complex plane inductance model and the rotor angle are given, and the method of using SRM flux characteristic of solving complex plane inductance model three coefficient, further analysis of the errors of different sectors of the angle estimation. On this basis, elaborated on startup and operation of three-phase inductance and low speed drive high-speed driving method for running the reference phase inductance, gives each state reference phase selection rules, analysis inductor saturation effect on the estimation of the rotor angle of low-speed operation, the three coefficient of compensation and take measures to eliminate the impact of MATLAB through imitation. The rotor position detection method under different working conditions and the feasibility is verified. In addition, this paper gives from the start, low to high speed drive running full speed range sensorless control scheme, the switching strategy and the scheme of high speed sensorless algorithm for the feasibility of simulation.
At last, this paper introduces the hardware and software design of sensorless experimental platform, and sensorless control algorithm is verified by experiments on the proposed comprehensive full range of speed, the verification results show that the proposed start, low and high speed driving condition without position sensor control algorithm has good feasibility.

【學位授予單位】：中國礦業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM352

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