Electro-mechanical mixed voltage sag compensation device

The invention relates to a mixed compensation device for mechanical and electric power electronic components when the voltage sags, belonging to the technical field of electrical engineering and machinery. A permanent magnet mechanism and a repulsion mechanism are used in combination in the invention to pmanufacture a drive mechanism of a high-speed mechanical switch which drives an arc extinguish chamber to turn on and turn off, so as to form the high-speed mechanical switch. During norm operations, the device provides electrical energy for a user through the mechanical switch; and when the voltage is low or a power cut occurs, the mechanical switch breaks quickly, and coordinates with the split power supply depending on the current limitation characteristics of the electric power electronic component to initiate a UPS (uninterruptible power supply) and supply the power for the user at the same time. The device provided by the invention also has a good effect of inhibiting large power loss due to longstanding operation of the electric power electronic component under a large current and the heat generated by the power loss. The high-speed mechanical switch is of a simple structure and is easy to maintain.