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《Automation of Electric Power Systems》 2002-12
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BROADBAND IP TECHNOLOGY: THE MAINSTREAM TECHNOLOGY FOR DEVELOPING A METROPOLITAN AREA NETWORK

Ding Daoqi (National Power Telecommunication Center, Beijing 100761, China)  
The necessity and urgency of building a highly reliable broadband power communication integrated service platform is described. Based on an analysis of the characteristics of power communication service, it is pointed out that the data and multi media service will become the main trends of the communication service. The real time data on relay protection, security and stability control, AVC, AGC etc., that ask for very little service but are required to be 100% reliable and of perfect QoS because of their direct impact on the safe operation of power network, and the power dispatching command order (voice) should be transmitted directly over a physically isolated special fiber optic network. For a large amount of data service, real time or not, transmission over a broadband IP metropolitan area network (MAN) is a good way according to the comparison between and analysis of various networking technologies. According to the service demand and development, it is advisable to set up IP over D(C)WDM broadband MAN by adopting the exchange technology with the high speed router as its core, the Gigabit Ethernet technology and resilience packet ring (RPR) technology. The QoS of the broadband MAN can fully satisfy the requirements of electric power real time service and video frequency service on standards with the support of the relevant technologies. The methods and steps of the transition from the present power communication service to broadband IP MAN are proposed.
【CateGory Index】: TN915.6
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