磁耦合諧振式無線電能傳輸零相位控制等比法
樂凱軍，夏俊，李祥，李鑫卓
（華南理工大學(xué) 電力學(xué)院，廣東 廣州 510640）
摘 要：傳統(tǒng)的零相位方式不能精確地調(diào)整頻率，同時不對稱系統(tǒng)的分裂頻率側(cè)方程又不能以一種完整的形式表達(dá)，提出一種對分裂頻率和零相位方法之間關(guān)系分析的新方法?；趦删€圈結(jié)構(gòu)，推出了全狀態(tài)最優(yōu)點的數(shù)值表達(dá)式, 并比較了最優(yōu)點和零相位點, 結(jié)果表明這兩點有顯著的偏差。在零相位方法中通過使用適當(dāng)?shù)谋嚷士蓽p小這種偏差并獲得同理想對稱系統(tǒng)一樣的更好的輸出特性，實驗驗證了該方法的可行性。
關(guān)鍵詞：磁耦合無線電能傳輸；零相位控制；頻率分裂；等比率
中圖分類號：TM153 文獻(xiàn)標(biāo)識碼：A 文章編號：1007-3175(2019)01-0010-04
Equal Ratio Method on Zero-Phase Control of Magnetic Coupling Resonant Mode Wireless Power Transmission
YUE Kai-jun, XIA Jun, LI Xiang, LI Xin-zhuo
（School of Electric Power, South China University of Technology, Guangzhou 510640, China）
Abstract: As the traditional zero-phase control cannot tune the frequency precisely and the ridge equation in unsymmetrical system cannot be derived for the complex equation, this paper presented a kind of new analysis method that yielded critical insight into the relationship between the splitting frequencies and zero-phase. Based on two-coil structure, this paper deduced a full state mathematical expression of optimal points and compared the optimal points with the zero-phase points.The result shows that there is a remarkable deviation between an optimal resonant point and a zero-phase point.Using the appropriate ratio in zero-phase method can eliminate this deviation and get a better output performance like an ideal symmetrical system.The experiment verifies the feasibility of this method.
Key words: magnetic coupling resonant wireless power transmission; zero-phase control; frequency splitting; equal ratio
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