Special load simulation device

The invention discloses a special load simulation device. The device comprises a pre-charging circuit, a switch, a control unit and a plurality of load units, each load unit comprises a direct-current bus capacitor, a three-phase inverter circuit and a three-phase resistance-inductance load; one end of the pre-charging circuit and the switch is connected with an external direct current bus, and the other end is connected in parallel with the direct current bus capacitor and the three-phase inverter circuit of each load unit; the control unit generates an inverter circuit output voltage instruction according to a load current to be simulated, the three-phase voltage output by each three-phase inverter circuit is changed by controlling the on-off of a switching device in each three-phase inverter circuit, and the changed three-phase voltage generates real-time changed power consumption on a three-phase star-shaped symmetrical resistance-inductance element connected with the three-phase inverter circuit. The cur