摘要： 针对电力系统中由部分设备工作不正常引起电网功率变化而损坏其他设备的问题，提出利用数字信号处理器(DSP)芯片TMS320F2812和模数转换器AD7656实现多通道同步交流采样的硬件电路及控制程序，硬件部分包括电流到电压转换的调理电路、模/数转换控制电路和CAN总线，软件部分包括主体控制程序、中断服务程序和软件优化方法等。应用结果验证了DSP在电力系统自动化控制中的优越性及该电路的实用性。
关键词:
同步采样,
交流采样,
数字信号处理器,
AD7656转换器,
CAN总线
Abstract: Aiming to the problem of part of equipments working non-normally in electric power system, this paper proposes the hardware circuit and software arithmetic achieving synchronous AC sampling of multi-channel electric power system with Digital Signal Processor(DSP) TMS320F2812 and AD7656. The hardware circuits include the circuits of current changed to voltage, analog signals changed to digital and CAN bus. The software includes the main program, interrupt service program and methods of program optimized. Experimental results show the advantages of DSP in auto-control of electric power system and practicability of the circuit.
Key words:
synchronous sampling,
AC sampling,
Digital Signal Processor(DSP),
AD7656,
CAN bus
中图分类号:
余绍雄;赖玉龙. DSP在电力系统多通道同步交流采样中的应用[J]. 计算机工程, 2008, 34(20): 255-256.
YU Shao-xiong; LAI Yu-long. Application of DSP in Multi-channel Synchronous AC Sampling of Electric Power System[J]. Computer Engineering, 2008, 34(20): 255-256.