Abstract: The grid connection of high proportion of wind and solar new energy faces the shortage of temporary dynamic reactive power,system short circuit capacity and rotational inertia. Therefore,a new-type distributed condenser solution is proposed for the power generation side of new energy. Of the solution,the transient dynamic parameters of the condenser are very important to ensure the response speed and effect of its reactive power compensation. By studying the influence of the design variables of the condenser on the key parameters,an efficient optimization method of electromagnetic scheme with adaptive adjustment is established. Then,the optimal scheme of the condenser with superior transient dynamic parameters is obtained through automatic design and optimization. Finally,the design scheme is fully verified by type test,and the results show that the temporary dynamic capability of the new distributed condenser can meet the requirements of the power grid.