本文選題：諧振式無線輸電　切入點(diǎn)：鐵磁材料干擾　出處：《電工技術(shù)學(xué)報(bào)》2014年S1期 　論文類型：期刊論文

【摘要】：基于開關(guān)柜、變壓器溫度監(jiān)測(cè)傳感器供電等應(yīng)用場(chǎng)景,研究構(gòu)成開關(guān)柜柜體,變壓器箱體、鐵心等鐵磁性材料類干擾體的存在對(duì)傳輸系統(tǒng)特性的影響。本文采用Ansoft磁場(chǎng)計(jì)算軟件計(jì)算有無鐵質(zhì)柜體、是否含有鐵心等條件下發(fā)射及接收端參數(shù),而后利用得到的參數(shù)采用Pspice電路仿真軟件計(jì)算系統(tǒng)傳輸特性,并與實(shí)驗(yàn)結(jié)果進(jìn)行比較。鐵磁材料對(duì)諧振式無線傳輸系統(tǒng)的干擾主要體現(xiàn)在影響系統(tǒng)線圈電感及發(fā)射端與接收端耦合系數(shù)兩個(gè)方面,仿真結(jié)果顯示鐵磁材料的存在使得線圈電感增大,系統(tǒng)脫離原諧振頻率導(dǎo)致傳輸效率下降;同時(shí)使得耦合系數(shù)增大,增強(qiáng)了傳輸效率,但增強(qiáng)幅度較小。同時(shí)研究發(fā)現(xiàn)由于位置的不對(duì)稱性,干擾體對(duì)發(fā)射端和接收端的干擾大小不同即發(fā)射端和接收端受到干擾后諧振頻率變化不同。
[Abstract]:Based on the application scenarios such as switchgear, transformer temperature monitoring sensor and so on, the paper studies the structure of switchgear cabinet and transformer box. The influence of the interference of ferromagnetic materials such as iron core on the characteristics of transmission system. In this paper, Ansoft magnetic field calculation software is used to calculate whether there is an iron cabinet and whether it contains the parameters of the transmitting and receiving ends under the condition of iron core, etc. Then the transmission characteristics of the system are calculated by using the Pspice circuit simulation software. Compared with the experimental results, the interference of ferromagnetic materials to the resonant wireless transmission system is mainly reflected in two aspects: the inductance of the coil and the coupling coefficient between the transmitter and the receiver. The simulation results show that the existence of ferromagnetic material increases the inductance of the coil and the transmission efficiency decreases due to the system detaching from the original resonant frequency, and the coupling coefficient increases and the transmission efficiency is enhanced. At the same time, it is found that because of the asymmetry of the position, the magnitude of interference between the transmitter and the receiver is different, that is, the resonant frequency of the transmitter and receiver is different after being interfered.
【作者單位】： 中國科學(xué)院電工研究所;中國科學(xué)院大學(xué);
【基金】：國家自然科學(xué)基金(51307157) 新能源電力系統(tǒng)國家重點(diǎn)實(shí)驗(yàn)室開放課題(LAPS14010)資助項(xiàng)目
【分類號(hào)】：TM724

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