基于光功率衰减值的ASON路径计算方法研究

成传智; 朱胜华; 刘 媛; 肖水英; 王汪兵; 王先培

引用本文:	成传智,朱胜华,刘媛,等.基于光功率衰减值的ASON路径计算方法研究[J].电力系统保护与控制,2016,44(15):48-53.
	CHENG Chuanzhi,ZHU Shenghua,LIU Yuan,et al.Research on the ASON path calculation method based on optical power loss value[J].Power System Protection and Control,2016,44(15):48-53

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基于光功率衰减值的ASON路径计算方法研究
成传智¹,朱胜华¹,刘媛¹,肖水英²,王汪兵³,王先培³
(1.国网咸宁供电公司，湖北咸宁437000;2.中国电力工程顾问集团中南电力设计院有限公司，湖北武汉430071;3.武汉大学电子信息学院，湖北武汉 430072)

摘要:

为解决ASON(Automatically Switched Optical Network)使用传统路径计算方法时恢复时间长以及阻塞率高的问题，提出了一种以光功率衰减值为权重的路径计算方法。该方法利用这一权重确定路径恢复时网络中每条链路被选中的概率以及每个站点的可达站点列表，进而根据每条链路被选择的概率之积最大的原则选择出一条链路业务量均衡以及跳数最短的恢复路径。经现场测试，使用该方法所得路径链路业务量更加均衡，有效降低了路径的阻塞率，同时保证了路径的恢复时间在100 ms以内。

关键词: 自动交换光网络路径计算光功率衰减值电力通信网智能电网

DOI：10.7667/PSPC160165

分类号:

基金项目:国家自然科学基金(50677047);湖北省自然科学基金(2015CFB563)

Research on the ASON path calculation method based on optical power loss value

CHENG Chuanzhi¹,ZHU Shenghua¹,LIU Yuan¹,XIAO Shuiying²,WANG Wangbing³,WANG Xianpei³

(1. Hubei Xianning Power Supply Company, Xianning 437000, China; ;2. State Grid Hubei Electric Power Company,
Wuhan 430071, China; ;3. School of Electronic Information, Wuhan University, Wuhan 430072, China)

Abstract:

In order to solve the problem which ASON (Automatically Switched Optical Network) has long recovery time and high blocking rate when using traditional path calculation method, a new algorithm based on the optical power attenuation value is introduced. The value is used to determine the probability of the path of each link which would be selected and the reachable lists of each station, then a recovery path which consists of balance link traffic and shortest hops based on principle of the product of the maximum probability is selected. On-site test shows that the path calculated by this method can get a more balanced selection of each link, and also can reduce the rate of path blocking and guarantee the delay recovery time within 100 ms. This work is supported by National Natural Science Foundation of China (No. 50677047) and Natural Science Foundation of Hubei Province (No. 2015CFB563).

Key words: ASON path calculation optical power attenuation value power communication network smart grid

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