Analysis of Transmission Characteristics of Loosely Coupled Transformer with S-S Compensation Structure

For the wireless power transmission system constructed by loosely coupled transformer, the transmission characteristics of the system affected by the transformer iron consumption after the addition of S-S type compensation structure are analyzed. The T-type equivalent circuit of the transformer is used to model the system, the output power and efficiency of the system are calculated by impedance analysis method and the maximum power transmission theorem, and the parameter curve of the compensation capacitor which makes the transmission power of the system reach the maximum value is obtained. Different points on the curve are selected for calculation and simulation, and the transmitted power, efficiency and output voltage and current waveform of the system are compared. The reference method of compensation capacitance parameter selection for the infinite power transmission system of loosely-coupled transformer with S-S compensation structure is obtained.