Load-side multi-type disturbance generation device is a device that enables simulation of load characteristic disturbance on the output side of power quality treatment devices. There are many related researches at home and abroad, and the feedback grid-connected simulation power electronic load products have been produced. However, these functions are not very perfect, and the efficiency of the effect is not very satisfactory in the actual application. Therefore, this paper further investigates the feedback grid-connected simulation power electronic load device in depth. Through the study of its topology, the design of key parameters and the selection of key devices, a power electronics device with output-side load characteristic disturbance is developed. Through relevant tests, the device developed in this paper can provide simulation of various loads and operating environments for testing power electronics devices, and the device is an energy feedback device, which effectively reduces energy loss during testing and realizes energy saving and emission reduction.

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