發(fā)布時間：2018-03-14 05:45

  本文選題：ICPT　切入點：多功率等級　出處：《重慶大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：對于多功率等級的ICPT系統(tǒng)，不同特性的用電負(fù)載對系統(tǒng)輸出電能的要求不同，負(fù)載的多樣性直接影響到系統(tǒng)輸出功率的多變性。而傳統(tǒng)ICPT系統(tǒng)的初級能量發(fā)射線圈往往采用單線圈結(jié)構(gòu)，線圈的設(shè)計只考慮用電負(fù)載的最大功率需求，對于不同功率輸出的需求，通常通過初級能量發(fā)射端的移相和變頻控制來實現(xiàn)。當(dāng)不同功率等級的用電負(fù)載的尺寸大小不同時，采用這種單線圈結(jié)構(gòu)的發(fā)射線圈在用電負(fù)載未覆蓋的位置必然存在電磁泄漏，必然導(dǎo)致系統(tǒng)傳輸效率的降低以及電磁泄漏對人體和金屬異物帶來的安全隱患，而這部分電磁泄漏引起的系統(tǒng)效率降低不能通過改進控制方法或優(yōu)化系統(tǒng)參數(shù)而解決�；谝陨洗嬖诘膯栴}，本文從能量發(fā)射線圈設(shè)計及優(yōu)化的角度，來實現(xiàn)系統(tǒng)傳輸效率的提高和電磁泄漏風(fēng)險的降低。 本文以ICPT系統(tǒng)能量發(fā)射線圈的設(shè)計為研究要點，主要工作包括以下幾點： ①對多功率等級ICPT系統(tǒng)的基本原理、系統(tǒng)結(jié)構(gòu)和主電路做了簡要介紹，，分析對比了幾種多功率等級ICPT系統(tǒng)的效率優(yōu)化方法，基于能量發(fā)射線圈結(jié)構(gòu)的優(yōu)化方向，確定了本文對于多功率等級ICPT系統(tǒng)的效率優(yōu)化方法。 ②針對能量發(fā)射線圈的設(shè)計優(yōu)化問題，分別對影響系統(tǒng)效率的系統(tǒng)參數(shù)、電磁耦合機構(gòu)的結(jié)構(gòu)、線圈自感值及互感值的影響因素、電磁場屏蔽方法等方面進行了詳細(xì)的分析。 ③介紹了ICPT系統(tǒng)的線圈設(shè)計流程，并基于單線圈結(jié)構(gòu)的能量發(fā)射線圈，建立JMAG仿真模型，分別從磁材料屏蔽（包括磁條排列方式、磁條厚度）和鋁板屏蔽（包括鋁板厚度、鋁板位置）兩個方面，對能量發(fā)射線圈的電磁屏蔽進行優(yōu)化。 ④完成了雙線圈結(jié)構(gòu)的能量發(fā)射線圈的設(shè)計，分別對加熱類負(fù)載電飯煲、馬達類負(fù)載攪拌機兩種尺寸不同的家用電器供電進行建模仿真，并與采用單線圈結(jié)構(gòu)的能量發(fā)射平臺進行對比，線圈傳輸效率有所提高，且在用電設(shè)備尺寸較小時效率提高更顯著。同時能量發(fā)射線圈軸向的泄漏磁場有效降低，能量發(fā)射平臺的軸向安全距離滿足要求，有效地驗證了能量發(fā)射線圈采用雙線圈結(jié)構(gòu)對系統(tǒng)性能的提升。
[Abstract]:For ICPT systems with multiple power levels, different characteristics of the power load require different power output from the system. The diversity of the load directly affects the variability of the output power of the system, but the primary energy transmitting coil of the traditional ICPT system usually adopts a single coil structure, and the design of the coil only takes into account the maximum power requirement of the electric load. The demand for different power outputs is usually achieved by phase shift and variable frequency control at the primary energy emitter. When the size of the load varies with the power level, The transmission coil with this kind of single coil structure must have electromagnetic leakage in the position where the electric load is not covered, which will inevitably lead to the decrease of transmission efficiency of the system and the hidden danger of electromagnetic leakage to human body and metal foreign body. The reduction of system efficiency caused by this part of electromagnetic leakage can not be solved by improving the control method or optimizing the system parameters. Based on the above problems, the design and optimization of the energy transmitting coils are discussed in this paper. To improve the transmission efficiency and reduce the risk of electromagnetic leakage. This paper focuses on the design of energy transmitting coils for ICPT system. The main work includes the following points:. The main contents are as follows: 1. The basic principle, system structure and main circuit of multi-power grade ICPT system are briefly introduced. Several efficiency optimization methods of multi-power grade ICPT system are analyzed and compared, and the optimization direction of energy transmitting coil structure is analyzed and compared. The efficiency optimization method for multi-power grade ICPT system is determined in this paper. 2 aiming at the optimization of the design of the energy transmitting coil, the system parameters that affect the system efficiency, the structure of the electromagnetic coupling mechanism, the influence factors of the coil self-inductance and mutual inductance, the electromagnetic shielding method and so on are analyzed in detail. 3. The coil design flow of ICPT system is introduced, and based on the energy transmitting coil with single coil structure, the simulation model of JMAG is established, which includes magnetic material shielding (including magnetic strip arrangement, magnetic strip thickness) and aluminum plate shield (including aluminum plate thickness), respectively. The electromagnetic shielding of the energy emitting coil is optimized in two aspects: aluminum plate position. (4) the design of energy transmitting coil with double coil structure is completed, and the modeling and simulation of two kinds of electric appliances with different sizes, such as heating type loaded rice cooker and motor type load mixer, are carried out respectively. Compared with the energy transmitting platform with single coil structure, the transmission efficiency of the coil is improved, and the efficiency of the energy transmitting coil is improved more significantly when the size of the electric equipment is smaller. At the same time, the axial leakage magnetic field of the energy transmitting coil is reduced effectively. The axial safe distance of the energy transmitting platform meets the requirements, which effectively verifies the performance improvement of the energy transmitting coil using the dual-coil structure.
【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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