基于DSP与单片机双CPU变压器差动保护

Dual-CPU transformer differential protection based on DSP and SCM

介绍了变压器差动保护的特点和算法,提出一种DSP与单片机主从结构的双CPU系统,采用DSP芯片提高变压器主保护装置的实时数据处理能力和实现较复杂的保护运算,单片机实现逻辑判断和管理工作．DSP与单片机之间使用双口RAM实现快速通信．与其他辅助电路构成的系统设计方案和硬件平台。

The characteristic and algorithm of transformer main protection is introduced, a dual-CPU system with master-slave structure based on DSP and SCM is given. The DSP can be used to improve the real time data processing and realize complex protection algorithm of the protection device , The SCM is used to realize logic judgement and management work. Dual Port Random Access Memory （DPRAM） is used to realize the high speed traffic between the two processors. Other auxiliary circuits is integrated in the system design option and hardware platform.