Based on the existing shortcomings of current model of several kinds of power quality disturbance device, a scheme of power quality disturbance source based on power electronic technology is proposed. Using DSP controller, active three-phase PWM rectifier and controllable inverter control methods, combining MRF compensation algorithm under the condition of asymmetry and high frequency, and taking the 15 kVA capacity as an example, the dynamic simulation system of power distribution network after adding disturbance source is simulated and analyzed. Simulation results show that the dynamic simulation system with interference source can simulate lots of kinds of power quality disturbance environment, which can be used in high power applications. And the operation is economical and better efficient, and can meet the effectiveness and practicality requirements on the test of the power quality control equipment. This work is supported by National Natural Science Foundation of China (No. 51177077) and Science and Technology Project of Yunan Power Grid (No. YNKJ00000053).