In this paper

a kind of current disturbance generator based on embedded microprocessor（ARM）and Field Programmable Gate Array（FPGA）is described

and the achievement method of setting up its control system by the used of

ARM and FPGA is studied. The current disturbance generator uses single stage multiplication frequency CPS-SPWM technology. The main topology for each phase consists of two stage pole H bridge power unit which is cascaded in the inverter side

which can improve effectively the range of output voltage level and equivalent switching frequency

can output fundamental wave accurately and 2-50 order harmonics and provide site test environment for operation performance and status of such tested equipment as APF etc. The good performance of the topology structure and effectiveness of the achievement method are proved by the test of industrial sample.