【摘要】：近百年來，幾乎所有的電氣設(shè)備都是通過電氣接觸的方式從電網(wǎng)獲取電能。然而，對于軌道交通、吊裝設(shè)備、小家電、旋轉(zhuǎn)機(jī)構(gòu)等移動電氣設(shè)備，這種方式會影響設(shè)備的靈活移動；而對于礦井、油庫及煤礦等特殊環(huán)境中的設(shè)備，這種方式還增加了安全隱患。為了解決移動電氣設(shè)備（或特殊環(huán)境設(shè)備）的電能靈活、安全接入問題，無線電能傳輸（WPT，wireless power transfer）技術(shù)應(yīng)運(yùn)而生。 基于電磁感應(yīng)耦合的無線電能傳輸（ICPT，Inductively Coupled Power Transfer）是目前在WPT技術(shù)領(lǐng)域相對較熱的研究方向。但由于電場在許多特性上與磁場相似而且兩者在基本理論上也呈現(xiàn)出對偶性，因此近幾年國內(nèi)外許多研究團(tuán)隊開始關(guān)注基于電場耦合的無線電能傳輸（ECPT，Electric-field Coupled Power Transfer）技術(shù)的研究。該技術(shù)為無線電能傳輸提供了一種新的途徑，進(jìn)一步拓展無線電能傳輸技術(shù)的研究領(lǐng)域，并促進(jìn)與無線電能傳輸相關(guān)的理論和技術(shù)的進(jìn)步。 本文主要對ECPT系統(tǒng)的電路拓?fù)浼罢{(diào)諧控制進(jìn)行研究。首先論述了ECPT系統(tǒng)的國內(nèi)外研究現(xiàn)狀，并對ECPT系統(tǒng)的基本工作原理及特點(diǎn)做了簡要的介紹。然后在分析了ECPT系統(tǒng)中常用的幾種拓?fù)浣Y(jié)構(gòu)及其調(diào)諧控制方法的基礎(chǔ)之上，針對ECPT系統(tǒng)耦合機(jī)構(gòu)的高頻高壓驅(qū)動需求與初級高頻電能變換環(huán)節(jié)開關(guān)管的低壓需求之間相互制約的矛盾，提出一種融入高頻變壓器的ECPT系統(tǒng)電能發(fā)射端變換拓?fù)洹?本文在給出了一種適合于ECPT系統(tǒng)的高頻變壓器模型基礎(chǔ)上，確定了高頻變壓器電壓變比的取值范圍。針對所提出的融入高頻變壓器ECPT系統(tǒng)電能發(fā)射端變換拓?fù)洌o出影響傳輸功率與效率的幾個主要參數(shù)確定方法。同時對主電路的驅(qū)動電路做出了簡要論述。利用Matlab/simulink仿真平臺對系統(tǒng)軟開關(guān)實(shí)現(xiàn)方案、參數(shù)敏感性、系統(tǒng)傳輸功率大小等進(jìn)行詳細(xì)分析。同時給出了系統(tǒng)動態(tài)調(diào)諧控制目標(biāo)以及相應(yīng)的調(diào)諧控制方法。在獲得調(diào)諧控制方法的數(shù)學(xué)描述的基礎(chǔ)上，提出一種調(diào)諧電容矩陣的設(shè)計方法。 最后在Matlab/simulink仿真平臺上搭建了整體系統(tǒng)仿真模型，，進(jìn)行仿真分析。結(jié)果說明當(dāng)融入高頻變壓器的ECPT系統(tǒng)耦合電容值在一定范圍內(nèi)變化時，通過動態(tài)調(diào)諧控制，系統(tǒng)能夠始終工作在軟開關(guān)狀態(tài)，并進(jìn)行了實(shí)驗(yàn)驗(yàn)證。
[Abstract]:In the last hundred years, almost all electrical devices have obtained electricity from the power grid by means of electrical contact. However, for rail transit, hoisting equipment, small household appliances, rotating mechanism and other mobile electrical equipment, this way will affect the flexible movement of equipment; For equipment in special environments such as mines, oil depots and coal mines, this approach also increases safety risks. In order to solve the problem of flexible and secure access to electric energy of mobile electrical equipment (or special environment equipment), radio energy transmission (WPT,wireless power transfer) technology emerged as the times require. Radio energy transmission (ICPT,Inductively Coupled Power Transfer) based on electromagnetic induction coupling (ICPT,Inductively Coupled Power Transfer) is a relatively hot research direction in the field of WPT technology. However, because the electric field is similar to the magnetic field in many characteristics and presents duality in basic theory, many research teams at home and abroad have begun to pay attention to the radio energy transmission (ECPT,) based on electric field coupling in recent years. Research on Electric-field Coupled Power Transfer) technology. This technology provides a new way for radio energy transmission, further expands the research field of radio energy transmission technology, and promotes the development of theory and technology related to radio energy transmission. In this paper, the circuit topology and tuning control of ECPT system are studied. Firstly, the research status of ECPT system at home and abroad is discussed, and the basic working principle and characteristics of ECPT system are briefly introduced. Then, based on the analysis of several topology structures and tuning control methods in ECPT system, In view of the contradiction between the high frequency and high voltage driving requirements of the coupling mechanism of ECPT system and the low voltage demand of the switch in the primary high frequency power conversion link, a power transmitter topology of the ECPT system integrated with the high frequency transformer is proposed. Based on a model of high frequency transformer suitable for ECPT system, the range of voltage change ratio of high frequency transformer is determined in this paper. In view of the proposed topology transformation of the power transmitter in the ECPT system with high frequency transformer, several main parameters determining the transmission power and efficiency are given. At the same time, the driving circuit of the main circuit is briefly discussed. The realization scheme of soft switch, sensitivity of parameters and transmission power of the system are analyzed in detail by using Matlab/simulink simulation platform. At the same time, the dynamic tuning control target and the corresponding tuning control method are given. Based on the mathematical description of tuning control method, a design method of tuning capacitance matrix is proposed. Finally, the whole system simulation model is built on the Matlab/simulink simulation platform, and the simulation analysis is carried out. The results show that when the coupling capacitance of ECPT system with high frequency transformer changes within a certain range, the system can always work in soft switching state by dynamic tuning control, and the experimental results are verified.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM724

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