基于dsPIC33和MCP3909的三相监控终端研究与设计  

Research and design of three-phase terminal based on dsPIC33 and MCP3909

作　　者：吴国平[1] 杨仁刚[1] 

机构地区：[1]中国农业大学信息与电气工程学院,北京100083

出　　处：《电力系统保护与控制》2010年第8期105-110,共6页Power System Protection and Control

基　　金：国家'十一五'科技支撑项目(2006BAJ04B03)

摘　　要：为使三相监控终端测得的电压电流能实时同步采样并保证监控终端结构简单、运行可靠,设计了新型三相监控终端,在硬件上CPU采用高性能的dsPIC33FG256GP710和电表专用的电能质量计量芯片MCP3909,软件采用了具有工程实用性的准同步采样法。主站通过GPRS网络与各个监控终端通信,对监控终端进行管理维护,便于数据管理。实验结果表明,该设计在电能质量测量方面准确可靠。This paper proposes three-phase monitor hardware and software design just for measuring terminal voltage and current in real-time synchronous sampling, possessing simple structure and ensuring reliable operation. It gives the use of high-performance about dsPIC33FG256GPT10 and the measurement chip MCP3909 on hardware. The software gives the quasi-synchronous sampling method in the power measurement. Master station communicates with each terminal through the GPRS network and monitors all terminals. It is inclined to manage the data. Experimental results show that the design aspects of power quality measurements are accurate and reliable.

关 键 词：监控终端 准同步采样 MCP3909 电能质量 GPRS 

分 类 号：TM769[电气工程—电力系统及自动化]