Efficiency and Frequency Bifurcating Phenomenon Research ofSeries Resonance Converter Applied in a Contact-less Power Transmission System

A contact-less power transmission system is applied widely in many fields, such as medical treatment, petroleum, mine, underwater equipments and military affairs, and have a very extensively future. The powder transmitting system based on the contact-less power transmission of the electromagnetic coupling technology and power electronics, which use the transformer whose primary and secondary side are both detachable and avoids the phenomenon of the exposed conductor and spark which appears in the power transmitting procedure transmits the power from the main side to single load or multiple-load. The transmission efficiency is one of the system research focuses. This paper particularly discusses the affection of the parallel compensate capacitor in the secondary side of series resonance converter to system efficiency by theoretical analysis and formulation deduction, and brings forward the optimum project of shunt compensate capacitor. Meanwhile this paper does study the Frequency Bifurcating Phenomenon with the changes of different shunt compensate capacitor, the experiment proves that the shunt compensate capacitor chosen in this method will greatly increase the system transmission efficiency.