广域测量系统中PMU的通信方案  

Communication Scheme of Phasor Measurement Unit in WAMS

作　　者：季坤[1] 王克英[1] 蔡泽祥[1] 

机构地区：[1]华南理工大学电力学院,广州省广州市510640

出　　处：《电力系统自动化》2005年第3期77-80,共4页Automation of Electric Power Systems

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.

关 键 词：相量测量单元 广域测量系统 数据通信 SPI USB CAN总线 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]