基于链路失效模型的多级电力业务路由规划

该文从智能电网中电力业务多样性的角度出发，分析不同类型业务对网络的可靠性需求。建立链路失效函数模型，并基于该模型设计面向可靠性的路由规划方法。以网络阻塞率和资源利用率为指标，通过与传统链路失效路由算法的比较分析来验证所提出方法的有效性。传统链路失效路由规划算法忽略了电力业务多样性，对接入网络的业务请求无差别处理，路由规划约束条件相对单一，导致网络阻塞率较高。该文所提路由算法充分考虑了不同业务对网络需求的多样性，依据业务等级调整目标函数并分别进行路由分配，从而降低网络阻塞率，提升网络可靠性和资源利用率。

Availability-oriented Routing Algorithm for Planning Multi-level Power Service Based on Link-failure Model

Considering the diversity of power services in smart grid, the reliability requirements of different levels of services are analyzed. A link-failure model is built, and an availability-oriented routing planning algorithm is designed based on the built model. The feasibility of the proposed algorithm, in terms of the network blocking rate and resource utilization, is validated by comparing with the classical link-failure routing algorithms. The classical link-failure routing algorithms ignore the diversity of power services, and process all service requests of the access network indiscriminately. The classical routing planning constraints are relatively simple, which leads to the high blocking rate. Regarding to the different requirements on the network availability from kinds of services, the routing algorithm proposed in this paper adjusts properly the target function and allocates the resource according to the incoming service. Thus, the network blocking rate is significantly reduced. Meanwhile, the network availability and resource utilization are greatly improved.