Abstract:

Aiming at the control need of various mining permanent magnetic vacuum circuit breakers,this study realizes the new intelligent mining vacuum permanent magnet controller based on CPLD.The full electronic circuit non-contact integrated software design is adopted.The switching power with wide-range input and constant-voltage and constant-current output is adopted as the power.The voltage and current are continuously adjustable and therefore reliable.The electronic switch comprised mainly of a transistor and an IGBT is used to control the break-brake power so that the output energy can be controlled and adjusted,and the safety of the mine and the reliability of the breaker can be ensured.

Key words: intelligent control;electronic drives;circuit breaker;switching power supply