三级电力通信网中PTN系统的组网方式

Networking Mode of PTN in Three Level Power Communication Network

电力系统通信业务正逐渐向IP化、宽带化、业务多元化方向发展,PTN技术更加适应电力通信网发展的新需求,但由于其传输能力的限制,难以实现在三级通信网中超长距离的传输。文章利用PTN的多业务接入能力和OTN系统长距离传输能力,提出一种变电站内PTN系统的联网方案,并提高了OTN系统光波资源的利用率。该方案实现了站内业务的灵活接入,提高了电力通信网的承载能力。

Electric power communication traffi c is gradually transforming from traditional SDH/MSTP technology to the IP, broadband and diversification. Packet Transport Network（PTN） technology based on IP transmission is more suitable for the development of electric power communication network. Due to its transmission capacity, long-distance transmission in three level communication network can＇t be realized by PTN. In this paper, taking the advantage of multi-business access ability of PTN and the long-distance transmission ability of OTN, we propose a PTN system networking scheme for substation, and which can improve the utilizing rate of OTN packet light wave resources. The proposed scheme realizes the fl exible access of various businesses and improves the bearing ability of power communication network.