Power system signal simulation device

The utility model discloses an electric power system signal simulation device which is used for simulating the operation state of an electric power system to carry out function test on a tested device. The simulation controller is used for simulating the operation state of a power system, the upper computer is used for generating a control instruction according to the operation state of the power system so as to carry out function testing on a tested device through the simulation controller, and the upper computer is connected with a USB interface or a network port of the simulation controller through the USB interface or the network port. The analog controller and the tested device are connected in a one-to-one correspondence manner through the analog quantity interfaces and the switching quantity interfaces. According to the utility model, the operation state of the electric power system can be automatically simulated, and whether the judgment of the tested device and the action result are correct or not ca