本文選題：永磁同步電機　切入點：滑模變結(jié)構(gòu)控制　出處：《南京航空航天大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：永磁同步電機的無位置傳感器控制技術(shù)近些年是電機控制領(lǐng)域內(nèi)的一個研究熱點,而且已經(jīng)有很多成熟的控制策略和算法被提出和應(yīng)用,但是目前為止還沒有一種策略可以在低速和高速都能取得良好的控制效果,因此實際應(yīng)用中需要針對具體的應(yīng)用場合選擇不同控制策略來組合,形成全速度范圍內(nèi)完整可靠的無位置控制方案。到目前為止,永磁同步電機的無位置傳感器控制技術(shù)主要應(yīng)用于各類壓縮機和泵機的場合,比如洗衣機、空調(diào)壓縮機等,這類應(yīng)用場合的工作特點是大部分時間主要運行在中高速段,對中高速度段運行時的效率有較高的要求,而對于低速段運行時的性能沒有特別的要求。所以,對于此類的應(yīng)用場合,最佳的控制策略就是采用簡單可靠的方法將電機由靜止加速到正常工作的速度范圍,然后再采用精確的無位置控制策略保持電機穩(wěn)定高效地運行。本文在基于滑模觀測器的無位置控制方法的基礎(chǔ)上,提出一種簡單可靠的啟動及狀態(tài)切換方法,能夠?qū)崿F(xiàn)電機在寬速度范圍內(nèi)的無位置傳感器運行。文章的主要內(nèi)容如下:首先,介紹了交流伺服技術(shù)的發(fā)展歷程,重點介紹了永磁同步電機的無位置傳感控制技術(shù)的發(fā)展歷程及現(xiàn)狀。然后詳細(xì)的介紹了永磁同步電機的數(shù)學(xué)模型、矢量控制技術(shù)、基于滑模觀測器的無位置控制系統(tǒng)設(shè)計。其次,在Matlab/Simulink中建立了永磁同步電機的矢量控制(0di?控制)調(diào)速系統(tǒng)模型,在此基礎(chǔ)上建立基于滑模觀測器的無位置傳感器控制系統(tǒng)的模型,并提出單電流環(huán)運行的無位置啟動以及控制狀態(tài)切換方法。通過仿真,在理論上對無位置傳感器控制系統(tǒng)的可行性進行驗證。再次,搭建永磁同步電機控制系統(tǒng)的測試平臺,在搭建好的實驗平臺上分別對電機的基本矢量控制以及無位置傳感器下的運行進行實驗。最后,對實驗的結(jié)果進行分析。實驗結(jié)果表明本文所提出的無位置傳感器的控制方法切實可行,并具有較強的實用性和魯棒性,驗證了理論的正確性。
[Abstract]:The sensorless control technology of permanent magnet synchronous motor (PMSM) has been a research hotspot in the field of motor control in recent years, and many mature control strategies and algorithms have been proposed and applied. However, there is not a strategy that can achieve good control effect at both low speed and high speed, so it is necessary to select different control strategies for specific applications in practical applications. To form a complete and reliable positionless control scheme in the full speed range. So far, the sensorless control technology of PMSM has been mainly used in various compressors and pumps, such as washing machines, air conditioners, compressors, etc. The working characteristic of this kind of application is that most of the time runs in the middle and high speed section, and the efficiency of the middle and high speed section is higher, but the performance of the low speed section is not special. For such applications, the best control strategy is to speed up the motor from rest to normal speed by a simple and reliable method. Then the precise position free control strategy is adopted to keep the motor running stably and efficiently. A simple and reliable starting and state switching method based on sliding mode observer is proposed in this paper. The main contents of this paper are as follows: firstly, the development of AC servo technology is introduced. This paper mainly introduces the development course and present situation of the sensorless control technology of PMSM, and then introduces the mathematical model of PMSM and vector control technology in detail. The design of position free control system based on sliding mode observer. Secondly, the vector control of permanent magnet synchronous motor (PMSM) is established in Matlab/Simulink. Based on the model of speed control system, the model of sensorless position sensorless control system based on sliding mode observer is established, and the method of positionless startup and control state switching for single current loop operation is proposed. In theory, the feasibility of the sensorless control system is verified. Thirdly, the test platform of PMSM control system is built. The basic vector control and the position sensorless operation of the motor are experimented on the set up experimental platform. Finally, The experimental results show that the proposed sensorless control method is feasible, practical and robust, and the correctness of the theory is verified.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM341

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相關(guān)期刊論文 前1條

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本文編號：1572242