通信技术在智能电网中的机遇与挑战

本文着重讨论智能电网和智能电表领域中，通信发展的潜在机遇和所面临的技术挑战问题。纵观通信领域的发展历程，通信领域近年来的热门话题，如认知无线电、协同通信和多天线系统，发展已经遇到技术瓶颈或者性能已达到极限。通信学术界和工业界正在积极寻求下一个研究方向。笔者认为，全球智能电网的兴起和繁荣为通信领域的研究提供了新机遇，在智能电网这一全新领域中，通信技术及其相关应用将大有可为。基于此，本文对通信与智能电网系统融合的关键技术和所面临的挑战进行分析和阐述。

Opportunities and Challenges of the Communication Technology in Smart Grid

According to the working characteristics of virtual automatic production line, the paper puts for- ward a kind of control mode based on Profibus-DP field-bus. This paper focuses on Profibus-DP＇s network control features, construction and process of technical realization. In order to complete the whole virtual data transmission of automatic production line, the whole control system adopts Simens S7-300 as the main station, and the four re- maining S7-200 are attached to the bus through the EM277 module. This approach greatly improves the system re- liability and anti-interference ability.