Reactive optimized control device of substation

The utility model relates to a substation control technology, in particular to a reactive optimized control device of a substation, which has simple structure and low cost and can simultaneously control two sections of buses to connect with a capacitor in parallel, thus carrying out reactive compensation optimization. The reactive optimized control device of the substation comprises an alternating current input module (1), a signal input module (2), a control output module (3), a CPU module (4), a power supply module (5) and a man-machine interaction module (6). The modules are in back plugging mode structures which are characterized in that the modules are plugged at the back of the device, and the man-machine interaction module (6) is arranged at the back face of a panel. The reactive optimized control device can carry out optimized control on the static state compensation capacity and dynamic compensation capacity of the parallel-connection capacitor in the substation, adjust the reactive compensation capa