CAJ | 학술논문

文章介绍了基于Cotex-M3内核的32位高性能微控制器在智能低压断路器控制器的硬件及软件设计中的应用。本智能控制器硬件采用信号变换、波形变换法；软件采用微分法。具体是通过微控制器中集成的PWM输入捕获模式采样变换后的信号来间接计算电流的变化率，大大缩短了过载、短路故障电流的响应时间。智能低压断路器控制器，除实现故障保护功能外，还能对环网供配电系统的现场参数进行实时性监测、区域联网通信等，真正能实现“分布式控制、集中管理”，降低现场维护的难度，提高了整个区域环网供配电系统的安全性和可靠性。
문장개소료기우Cotex-M3내핵적32위고성능미공제기재지능저압단로기공제기적경건급연건설계중적응용。본지능공제기경건채용신호변환、파형변환법；연건채용미분법。구체시통과미공제기중집성적PWM수입포획모식채양변환후적신호래간접계산전류적변화솔，대대축단료과재、단로고장전류적향응시간。지능저압단로기공제기，제실현고장보호공능외，환능대배망공배전계통적현장삼수진행실시성감측、구역련망통신등，진정능실현“분포식공제、집중관리”，강저현장유호적난도，제고료정개구역배망공배전계통적안전성화가고성。
This paper introduces the application of the 32-bit high-performance microcontroller in the design of an intelligent low-voltage circuit breaker controller based on Cotex-M3 kernel. The intelligent controller hardware adopts signal transformation, waveform transformation methods;software uses the differential method. Specifically it indirectly calculates the current changing rate with the signals after sampling transformation of the input capture mode from the PWM integrated in microcontroller, greatly reducing the overload, the response time of the short circuit fault current. In addition to implement fault protection function the intelligent low-voltage circuit breaker controller can also implement real time monitoring of the field parameters of ring grid power supply system, and the networking communications with regional networks, etc., so as to really achieve "distributed control, centralized management", reduce the difficulty of field maintenance, and improve the security and reliability of whole ring grid power supply system in the whole region.