發(fā)布時間：2018-01-26 15:27

  本文關鍵詞： 海洋波動 永磁振子 瞬態(tài)仿真 感應電動勢 能量采集電路　出處：《河北工業(yè)大學》2015年碩士論文　論文類型：學位論文

【摘要】：傳統(tǒng)上對海洋發(fā)電的研究著重于海洋波浪發(fā)電站及大功率發(fā)電設備,本課題重點研究單元式供電系統(tǒng),向海洋氣象監(jiān)測設備及搭載的傳感器網絡提供電能,以解決化學電池供電壽命短暫、維護成本高諸多條件限制問題。課題使用稀土永磁材料釹鐵硼N38制作振子,根據(jù)線性波動理論,以電磁感應定律為基礎,設計制作試驗樣機并進行測試研究。以海洋波動理論及法拉第電磁感應定律為基礎,分析研制永磁式海洋波動發(fā)電裝置,基于上述理論建立波動發(fā)電裝置機電耦合模型,此模型較好地描述波動發(fā)電裝置輸入輸出關系,同時也為模型設計仿真提供可靠的理論指導。利用有限元分析軟件對波動發(fā)電裝置進行靜態(tài)磁場仿真分析,以確定永磁振子的模型結構參數(shù),根據(jù)仿真結果優(yōu)化感應線圈的結構,通過磁場瞬態(tài)分析影響裝置波動發(fā)電裝置輸出感應電動勢的若干個要素,分別為永磁振子振動幅值、振動頻率、線圈匝數(shù)及間距、磁路結構等。研究傳統(tǒng)型能量采集電路性能,仿真結果表明輸出電壓與功率很大程度依賴于負載,改進型能量采集電路加入了超級電容器儲能模塊與穩(wěn)壓電路模塊、開關控制電路、補充回路,通過對MOS開關實現(xiàn)準確的開斷控制,實現(xiàn)微功耗電源的有效管理。設計制作波動發(fā)電裝置樣機,并對樣機的輸出感應電動勢進行測試,在振幅±50mm、周期T=2s、線圈匝數(shù)400匝時,感應電動勢峰值電壓可達7.857V,測試結果表明,與采用有限元分析軟件模型計算得到的數(shù)據(jù)相差0.231V,證明之前感應電動勢數(shù)學推導過程是正確的,同時也為永磁式海洋波動發(fā)電裝置設計制作奠定科學的理論基礎。
[Abstract]:Traditionally, the research of ocean power generation focuses on the ocean wave power station and high-power power generation equipment. This topic focuses on the research of unit power supply system to provide electricity to marine meteorological monitoring equipment and sensor network. In order to solve the problem of short power supply life and high maintenance cost of chemical battery, we use NdFeB N38, a rare earth permanent magnet material, to make oscillator. According to the theory of linear wave, the problem is based on the law of electromagnetic induction. Based on ocean wave theory and Faraday's law of electromagnetic induction, a permanent magnet marine wave generator is developed. Based on the above theory, the electromechanical coupling model of fluctuating generator is established, which can describe the input and output relationship of fluctuating generator. At the same time, it also provides reliable theoretical guidance for model design and simulation. The static magnetic field simulation analysis of fluctuating power generation device is carried out by using finite element analysis software to determine the model structure parameters of permanent magnet oscillator. According to the simulation results, the structure of induction coil is optimized, and some factors which affect the output of induction electromotive force by transient magnetic field analysis are respectively permanent magnet vibration amplitude and vibration frequency. The performance of the traditional energy acquisition circuit is studied. The simulation results show that the output voltage and power depend heavily on the load. The improved energy acquisition circuit includes supercapacitor energy storage module and voltage stabilizing circuit module, switch control circuit, supplementary circuit, through the MOS switch to achieve accurate switching control. To realize the effective management of the micro-power power supply, the prototype of the fluctuating power generating device is designed and fabricated, and the output induced EMF of the prototype is tested at the amplitude 鹵50mm, the period T ~ (2) s, and the coil turn number 400 turns. The peak voltage of inductive electromotive force can reach 7.857V. the test results show that the difference is 0.231V with the data calculated by the finite element analysis software model. It is proved that the mathematical derivation process of induction electromotive force is correct, and it also lays a scientific theoretical foundation for the design and manufacture of permanent magnet marine wave generator.
【學位授予單位】：河北工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM612

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相關碩士學位論文 前2條

1 高輝;振蕩浮子式波浪發(fā)電裝置最佳功率控制研究[D];華南理工大學;2012年

2 林晨寬;電磁式低頻振動能量收集裝置的設計與研究[D];浙江工業(yè)大學;2013年

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本文編號：1465952