本文關鍵詞：太陽能閘門啟閉機驅動系統(tǒng)研究　出處：《湖北工業(yè)大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 太陽能 驅動系統(tǒng) 啟閉機 無刷直流電機

【摘要】：閘門啟閉機對水庫排水蓄水有著重要作用,但其啟停機運行一般需要電力驅動,這給閘門啟閉機的使用帶來了一定的限制,如對某些區(qū)域無電網(wǎng),架設電力線路成本昂貴的情況,而太陽能資源豐富,具有無污染、無區(qū)域限制等優(yōu)點。因此,如將太陽能作為閘門啟閉機驅動能源,不僅可以解決閘門啟閉機在無市電供應的情況下的供電問題,而且有利于擴大啟閉機在水利方面的使用范圍,提高水利資源的利用率。本文通過對太陽能閘門啟閉機系統(tǒng)的功能要求和控制機理分析,在現(xiàn)有研究成果的基礎上,對閘門啟閉機驅動系統(tǒng)總體方案、中小型閘門啟閉機參數(shù)要求、太陽能電池的輸出功率影響因素、優(yōu)化MPPT控制策略、無刷直流電機驅動控制策略等進行了系統(tǒng)研究。首先建立了太陽能電池輸出特性數(shù)學模型,對各種傳統(tǒng)最大功率點跟蹤方法進行了分析,提出基于數(shù)據(jù)采集的變步長增量電導法,并進行仿真驗證控制算法的可行性和有效性。然后選定具有功率密度大、效率高、調速性能和起動性能優(yōu)良的永磁無刷直流電機作為太陽能閘門啟閉機的驅動電機。為實現(xiàn)永磁無刷直流電機定子繞組正確換相,采用改進型線反電勢過零檢測技術。同時為解決功率器件產(chǎn)生高頻干擾的問題,選用二階有源濾波電路進行濾波處理。最后為驗證無位置傳感器控制算法控制效果,用數(shù)字信號處理器TMS320F2812作為電機驅動控制芯片,進行硬件電路設計,建立無刷直流電機驅動控制系統(tǒng),實現(xiàn)電機速度、電流雙閉環(huán)控制,實驗表明:本文采用的線電勢過零檢測技術,使無刷直流電機具有良好的運行性能。
[Abstract]:Gate hoist plays an important role in reservoir drainage and storage, but its start-up and shutdown generally need to be driven by electric power, which brings some restrictions to the use of gate hoist, such as no power grid in some areas. It is very expensive to set up power lines, but solar energy is abundant, no pollution, no area restriction and so on. Therefore, for example, solar energy is used as the driving energy of gate hoist. It can not only solve the power supply problem of gate hoist without electricity supply, but also expand the scope of application of the hoist in water conservancy. Through the analysis of the function requirements and control mechanism of the solar gate hoist system, based on the existing research results, the overall scheme of the gate hoist drive system is proposed. The parameters of the middle and small gate hoist are required, the output power of the solar cell is affected by the factors, and the MPPT control strategy is optimized. The drive and control strategies of brushless DC motor are systematically studied. Firstly, the mathematical model of solar cell output characteristics is established, and the traditional maximum power point tracking methods are analyzed. A variable step size incremental conductance method based on data acquisition is proposed, and the feasibility and effectiveness of the control algorithm are verified by simulation. Then, the method with high power density and high efficiency is selected. The permanent magnet brushless DC motor with excellent speed regulation and starting performance is used as the driving motor of the solar gate hoist. In order to realize the correct commutation of the stator winding of the permanent magnet brushless DC motor. In order to solve the problem of high frequency interference of power devices, an improved line back EMF detection technique is adopted. In order to verify the control effect of the sensorless control algorithm, the digital signal processor (TMS320F2812) is used as the motor drive control chip. Hardware circuit design, the establishment of brushless DC motor drive control system, the motor speed and current double closed loop control, experimental results show that: the linear potential zero detection technology adopted in this paper. Brushless DC motor has good performance.
【學位授予單位】：湖北工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TV664

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2 吳志強;;淺談水利水電閘門啟閉機的管理與維護[J];機電信息;2012年15期

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本文編號：1433544