非接觸式電能傳輸是一種利用電磁感應耦合技術、電力電子技術和現代控制技術實現的電源側與負載側完全分離的電能傳輸技術，克服了傳統電能傳輸方式在一些特殊環境如易燃易爆、水下等場合存在的弊端，實現電能安全可靠地傳輸。非接觸
感應電能傳輸采用可分離變壓器進行電能傳輸，優點明顯，但同樣存在缺點，主要缺點是：由于漏磁增加，可分離變壓器的副邊輸出電壓與傳統變壓器相比減小，不能由變壓器原邊電壓推導出副邊電壓。本文應用變壓器原、副邊電壓頻率不受可分離變壓器
存在較大氣隙的影響原理，將負載電壓轉換成與電壓成比例關系的交流信號，通過原邊接收檢測電壓的頻率間接獲取負載電壓，進而調節變壓器一次側電壓，達到調節負載輸出電壓的目的。本文提出這種應用于非接觸感應電能傳輸系統中間接檢測負載電壓的方法，實現了非接觸感應電能傳輸系統中閉環電壓檢測與控制，使負載側電壓精確控制變為可能。
Abstract: Most electrical equipments get the energy through plugs from source, this kind of energy transmission system is efficient
and accepted widely. But it is unsafe at the special circumstance such as undersea applications and flammable environments, for spark and
uncovered conduct exist at those systems. This paper describes a contact-less power transmission system using detachable transformer,
which is spark free and no uncovered conduct is exposed to the environments. But because there is a contact-less transformer in the
contact-less power transfer system, we can’t get the voltage of load side directly. This paper finds a method which can indirectly detect the
voltage of load side by changing the direct-current voltage of the load side to the square waves of the different frequencies, and put the
square wave on the detachable transformer which is another transformer. We can get the signal in the primary side which changing with the
voltage of the load side by magnetizing couple. So, we can gain the voltage of the load side indirectly by measuring the frequency of the
signal in the primary side. By this way, we can detect and control the load side voltage of the contact-less power transfer system.
關鍵詞：非接觸電能傳輸，串聯諧振式逆變器，可分離變壓器，負載電壓控制
Keywords: contact-less power transmission, resonant converter , detachable transformer, voltage control