摘要
在基于数字信号处理器(DSP)和高速AVR系列单片机的双CPU协调工作的同步相量测量单元(PMU)研究开发的基础上,进行了其通信方式的研究。PMU内部DSP与AVR单片机之间采用串行外围接口(SPI)实现高速可靠通信,以便AVR单片机完成瞬时数据和相量数据的记录、显示和通信,实现PMU独立运行;PMU与现场工控机之间采用通用串行总线(USB)接口传送瞬时数据和相量数据,实现局域分析和控制;以控制器局域网(CAN)总线和工业以太网技术相结合的通信方式把相量数据传送至测量中心实现全网分析和控制。
The communication scheme of synchronous Phasor Measurement Unit (PMU), which has been developed in the form of double CPUs: Digital Signal Processor (DSP) and high-speed AVR MCU, is presented in this paper. The Serial Peripheral Interface (SPI) is used to communicate between the DSP and the AVR MCU in the PMU, and it allows PMU to operate independently to measure, record, and display and transfer both the instantaneous and phase data. The Universal Serial Bus (USB) Interface is adopted to transfer both the instantaneous and phase data between PMU and industrial PC to realize the analysis and control of the local system. The CAN bus and the industrial Ethernet are combined to transfer the only phase data to the measurement center to accomplish the analysis and control of the global system.
出处
《电力系统自动化》
EI
CSCD
北大核心
2005年第3期77-80,共4页
Automation of Electric Power Systems
关键词
相量测量单元
广域测量系统
数据通信
SPI
USB
CAN总线
Computer peripheral equipment
Data communication systems
Digital signal processing
Local area networks
