In order to solve the problems of low action accuracy and weak interaction ability of traditional analog circuit breakers in power system debugging and training

it proposes a design scheme of intelligent simulated circuit breakers based on multi-source information fusion.It achieves high-precision simulation of circuit breaker operation characteristics

full-state real-time monitoring and remote intelligent control

to meet the high reliability requirements of smart grid regulation simulation and substation operation and maintenance training.It adopts the STM32H7 microcontroller as the core control unit

integrating Hall current sensors

Angle encoders and wireless communication modules.It optimizes the action timing control algorithm by establishing a mathematical model of the mechanical characteristics of the circuit breaker.The opening and closing time adjustment range of this intelligent simulated circuit breaker is 10 to 150 ms(with an accuracy of ±1 ms)

and the action voltage adaptation range is 85% to 110%Un.It supports remote signaling

remote measurement

and remote control functions

and can simulate eight typical faults such as failure to operate and misoperation

providing a high-performance solution for power system simulation training and equipment debugging.It has broad prospects for engineering applications.