In the topology of traditiona inductively coupled power transfer（ICPT for short） system

the drift of reasonant frequency of the system can cause reduction of coupling efficiency. As for this issue

in this paper a kind of new type PSS（the primary side adopts shunt-series compensation

the secondary adopts series compensation） compensation

based on ICPT system topology is proposed. Its circuit model is analyzed

the model is set up

it is obtained such as the gain of voltage and current of compensation system

and the curve of transmission efficiency under different quaity factors. The topology has higher compensation factor and the stress influence of the compensation coefficient in the system on the voltage and current of resonant components is analyzed

and the appropriate compensation coefficient is selected to reduce the design cost of system. Finally

a set of ICPT system sample based on PSS compensation is designed and the characteristic analysis for the PSS compensation topology is verified by the experiment.