本文選題：非接觸式電能傳輸 + 電磁耦合器�。� 參考：《浙江大學(xué)》2014年博士論文

【摘要】：長期以來,為水下儀器設(shè)備提供安全、高效的電能供給手段,一直是備受關(guān)注的重要問題。近年來,用于海洋科學(xué)研究、資源勘探的電子儀器和機(jī)電裝備被大量研制和廣泛投入使用。傳統(tǒng)上采用的電接觸式插拔接頭進(jìn)行水下電能傳輸存在磨損、電擊和漏電等安全隱患。非接觸電能傳輸(Contactless Power Transmission, CPT)技術(shù)的電能在間隙內(nèi)的傳輸過程中沒有直接的電氣接觸,為解決上述問題提供了一條有效的途徑。 CPT技術(shù)已陸續(xù)在陸上各種場合得到良好應(yīng)用。其中,傳輸效率無疑仍是攸關(guān)CPT傳輸品質(zhì)的重要方面。海水作為一種具有特定電磁特性的介質(zhì),直接影響到海水環(huán)境下CPT的傳輸性能。但國內(nèi)外尚缺乏針對海洋環(huán)境下CPT傳輸效率的系統(tǒng)、詳細(xì)研究。 本論文在課題組前期研究成果的基礎(chǔ)上,重點(diǎn)圍繞海洋環(huán)境下的CPT傳輸效率的優(yōu)化問題,研究海洋環(huán)境下CPT技術(shù)的傳輸機(jī)理,對傳輸效率進(jìn)行深入理論分析；在海洋環(huán)境對CPT裝置集成密封、固定與操作帶來的客觀限制條件下,完善相關(guān)的優(yōu)化設(shè)計(jì)方法。開發(fā)適用于海洋環(huán)境、滿足多種功能需求的海底觀測網(wǎng)絡(luò)及水下勘探機(jī)電裝備的高效、穩(wěn)定的電能傳輸插拔接口。進(jìn)一步考慮CPT在深海中的應(yīng)用中可能出現(xiàn)裝置因封裝結(jié)構(gòu)無法滿足有效傳輸距離的問題,對利用諧振中繼的非接觸傳輸(Contactless Power Transmission with Resonance Relays, CPTR),來增加有效傳輸距離、提升傳輸效率方面的內(nèi)容進(jìn)行了探索性的研究。 建立海水環(huán)境下的CPT傳輸模型,并依此建立在不同諧振補(bǔ)償結(jié)構(gòu)下的系統(tǒng)傳輸效率模型。在近距離傳輸范圍,討論品質(zhì)因數(shù)Q值、頻率和負(fù)載大小對不同諧振補(bǔ)償結(jié)構(gòu)下傳輸效率的影響。建立CPT在海水中的渦流損耗模型,分析影響渦流損耗大小的因素。通過選擇合適的諧振頻率抑制渦流損耗,提高傳輸效率。綜合理論分析結(jié)果,在確定的電磁耦合器結(jié)構(gòu)下,提出一種通過選擇、設(shè)計(jì)合適的系統(tǒng)工作頻率和電磁耦合器參數(shù)的方法,來優(yōu)化海水環(huán)境下的CPT傳輸效率。 針對海水環(huán)境下不同的應(yīng)用需求,根據(jù)理論分析結(jié)果,設(shè)計(jì)不同封裝結(jié)構(gòu)和電路功能的CPT系統(tǒng),實(shí)現(xiàn)間隙距離5mm,功率300W(48V),效率約85%的電能傳輸。研制的其中一套系統(tǒng)完成千島湖水下試驗(yàn)。 提出一種利用諧振中繼線圈提升在中距離范圍的CPTR傳輸效率的方法�；隈詈夏＠碚摵碗娐防碚搶兄C振中繼的CPTR進(jìn)行建模與效率分析；并對諧振中繼個(gè)數(shù)和放置位置與傳輸效率的關(guān)系進(jìn)行討論。考慮海水介質(zhì)對線圈的參數(shù)影響,提出了中繼線圈的參數(shù)設(shè)計(jì)方法。進(jìn)行相關(guān)實(shí)驗(yàn)來表明諧振中繼線圈對效率提升的實(shí)際效果。
[Abstract]:For a long time, it has been an important issue to provide safe and efficient power supply for underwater instruments and equipments. In recent years, electronic instruments and electromechanical equipment for marine scientific research and resource exploration have been extensively developed and widely used. The traditional electrical contact plug-and-unplug connector for underwater electric power transmission has some safety problems, such as wear, electric shock and leakage. Contactless Power Transmission, CPT) technology has no direct electrical contact during the transmission of electrical energy in the gap, which provides an effective way to solve the above problems. CPT technology has been used in various occasions on land one after another. Among them, the transmission efficiency is still an important aspect of CPT transmission quality. As a medium with special electromagnetic characteristics, seawater has a direct impact on the transport performance of CPT in seawater environment. However, there is a lack of CPT transmission efficiency system in marine environment at home and abroad. On the basis of the previous research results of the research group, this paper focuses on the optimization of CPT transmission efficiency in marine environment, studies the transmission mechanism of CPT technology in marine environment, and makes a deep theoretical analysis of the transmission efficiency. Under the conditions of the integrated sealing, fixing and operation of the CPT plant in the marine environment, the optimization design method is improved. The development of underwater observation network which is suitable for marine environment and meets the needs of many functions, as well as the efficient and stable electric power transmission and pull-out interface for underwater exploration electromechanical equipment. Considering further that in the application of CPT in the deep sea, the device may not satisfy the effective transmission distance due to the encapsulation structure, the contactless Power Transmission with Resonance Relays, CPT can increase the effective transmission distance by using the resonant relay. The content of improving transmission efficiency is researched. The CPT transmission model in seawater environment is established, and the transmission efficiency model of the system under different resonant compensation structures is established according to this model. The effects of the quality factor Q, frequency and load on the transmission efficiency under different resonant compensation structures are discussed in the short distance transmission range. The eddy current loss model of CPT in seawater was established and the factors influencing the eddy current loss were analyzed. The transmission efficiency is improved by selecting the appropriate resonant frequency to suppress the eddy current loss. Based on the theoretical analysis results, a method is proposed to optimize the CPT transmission efficiency in seawater environment by selecting the appropriate operating frequency and parameters of the electromagnetic coupler. According to the results of theoretical analysis, a CPT system with different packaging structures and circuit functions is designed for different applications in seawater environment. The gap distance is 5mm, the power is 300WN 48V / L, and the efficiency is about 85%. One of the systems was developed to complete the underwater test of Qiandao Lake. This paper presents a method to improve the transmission efficiency of CPTR in the middle distance range by using the resonant trunk coil. Based on the coupled mode theory and circuit theory, the CPTR with resonant relay is modeled and its efficiency is analyzed, and the relationship between the number of resonant relays and the position of the resonant relay and the transmission efficiency is discussed. Considering the influence of seawater medium on the parameters of the coil, a parameter design method for the relay coil is proposed. Experiments are carried out to show the effectiveness of the resonant trunk coil in improving efficiency.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TM724

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本文編號：1903268