一對多無線電能傳輸理論分析研究
2022年電子技術(shù)應(yīng)用第4期
王迪晟,,秦會斌,,范翠紅
杭州電子科技大學(xué) 新型電子器件與應(yīng)用研究所,,浙江 杭州310018
摘要: 磁耦合諧振式無線電能傳輸具有距離較遠,、功率大,、穿透性強等優(yōu)點,,近年來一對多無線電能傳輸技術(shù)成為無線充電領(lǐng)域的熱門研究方向,?;诖篷詈现C振式無線電能傳輸?shù)睦碚搧韺σ粚Χ酂o線電能傳輸系統(tǒng)進行研究,,建立電路仿真模型,計算出系統(tǒng)諧振狀態(tài)下的發(fā)射端電流,、接收端電流,、輸出平均功率、電源內(nèi)阻消耗平均功率,、接收端平均功率以及傳輸效率等數(shù)學(xué)表達式,,并利用MATLAB對模型進行仿真分析。仿真模型通過修改每個接收端回路的耦合系數(shù)的比例和另外兩個接收端線圈自感的乘積來調(diào)節(jié)該接收端的功率,,可以實現(xiàn)多個接收端的功率分配,,并使電能傳輸效率可達90%以上。
中圖分類號: TM724
文獻標識碼: A
DOI:10.16157/j.issn.0258-7998.211948
中文引用格式: 王迪晟,,秦會斌,,范翠紅. 一對多無線電能傳輸理論分析研究[J].電子技術(shù)應(yīng)用,2022,,48(4):117-121,,126.
英文引用格式: Wang Disheng,Qin Huibin,,F(xiàn)an Cuihong. Theoretical analysis of multi load radio power transmission[J]. Application of Electronic Technique,,2022,48(4):117-121,,126.
文獻標識碼: A
DOI:10.16157/j.issn.0258-7998.211948
中文引用格式: 王迪晟,,秦會斌,,范翠紅. 一對多無線電能傳輸理論分析研究[J].電子技術(shù)應(yīng)用,2022,,48(4):117-121,,126.
英文引用格式: Wang Disheng,Qin Huibin,,F(xiàn)an Cuihong. Theoretical analysis of multi load radio power transmission[J]. Application of Electronic Technique,,2022,48(4):117-121,,126.
Theoretical analysis of multi load radio power transmission
Wang Disheng,Qin Huibin,,F(xiàn)an Cuihong
Institute of New Electronic Devices and Applications,,Hangzhou Dianzi University,Hangzhou 310018,,China
Abstract: Magnetic coupling resonant wireless power transmission has the advantages of long distance, large power and strong penetration. In recent years, multi radio power transmission technology has become a hot research direction in the field of wireless charging. Based on the theory of magnetic coupling resonance radio power transmission, this paper studies the one to many radio power transmission system, establishes the circuit simulation model, calculates the mathematical expressions of the transmitter current, the receiver current, the average output power, the average power of the power internal resistance consumption, the average power of the receiver and the transmission efficiency under the resonant state of the system, and uses MATLAB to simulate the model and analyze. The simulation model adjusts the power of the receiver by modifying the ratio of the coupling coefficient of each receiver loop and the product of the coil self-inductance of the other two receivers. The power distribution of multiple receivers can be realized, and the power transmission efficiency can reach more than 90%.
Key words : multi radio,;magnetic resonance coupling;radio power transmission,;power distribution
0 引言
傳統(tǒng)的電力輸送采用有線輸送的方式,,然而有線輸送存在一定的局限性,。例如家用電器插拔過程中容易產(chǎn)生插座松動,產(chǎn)生火花甚至發(fā)生火災(zāi),。戶外用電設(shè)備隨著時間的推移,,線路會出現(xiàn)老化、磨損,,使其安全系數(shù)降低,。此外在一些特定的場合有線供電方式不能滿足其需求,如植入式醫(yī)療器械,,需要定期更換其內(nèi)部的電池,,而無線電能傳輸技術(shù)能夠有效解決植入式醫(yī)療器械充電問題,因此研究無線電能傳輸技術(shù)具有一定的現(xiàn)實意義和經(jīng)濟價值,。
無線充電可分為小功率無線充電[1-2]和大功率無線充電,。小功率無線充電常采用電磁感應(yīng)式[3-4],一般用于手機的充電,,其傳輸距離只有幾毫米,,限制用戶在充電的時候使用手機,也無法實現(xiàn)快充的效果,。大功率無線充電常采用磁耦合諧振式[5-9],,一般用于電動汽車充電,具有傳輸距離遠,、功率大,、效率高的優(yōu)點[9-11]。其原理主要是磁感應(yīng)能量轉(zhuǎn)換,,由交變的電流在發(fā)射線圈上產(chǎn)生交變的磁場,,接收線圈又由交變的磁場轉(zhuǎn)換為電流,且發(fā)射端的固有頻率與接收端固有頻率相同,,從而產(chǎn)生共振,,此時傳輸效果最好,輻射損失的能量也小,。
本文詳細內(nèi)容請下載:http://forexkbc.com/resource/share/2000004067,。
作者信息:
王迪晟,秦會斌,,范翠紅
(杭州電子科技大學(xué) 新型電子器件與應(yīng)用研究所,,浙江 杭州310018)
此內(nèi)容為AET網(wǎng)站原創(chuàng),未經(jīng)授權(quán)禁止轉(zhuǎn)載,。