引用本文: | 曾瑛,李伟坚,陈媛媛,等.基于业务优先级的电力调度数据网拥塞规避算法[J].电力系统保护与控制,2014,42(2):49-55.[点击复制] |
ZENG Ying,LI Wei-jian,CHEN Yuan-yuan,et al.A congestion avoidance algorithm based on the service priority for electric power dispatching data network[J].Power System Protection and Control,2014,42(2):49-55[点击复制] |
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摘要: |
为了保障电力调度数据网的可靠性,提出一种基于业务优先级的电力调度数据网拥塞规避算法。首先,根据不同业务对时延、带宽要求的不同,将其划分为具有不同优先等级的业务。其次,判断节点的拥塞状态,并对严重拥塞或中度拥塞节点缓存队列中的数据按业务优先级进行位置调整,丢弃位于严重拥塞阈值后的低优先级业务,并通知其源节点重新选择路由。最后,建立适应度函数,根据二进制粒子群优化(Binary Particle Swarm Optimization, BPSO)算法进行路由重新选择。仿真结果表明,算法优先保证了高优先级业务的服务质量(Quality of Service,QoS),从而优化了网络资源,均衡了网络负载。 |
关键词: 电力调度数据网 业务优先级 节点拥塞 拥塞规避 二进制粒子群优化 |
DOI:10.7667/j.issn.1674-3415.2014.02.008 |
投稿时间:2013-05-02修订日期:2013-05-30 |
基金项目:广东电网科技项目复杂大电网下新一代电力信息通信组网及智能输变电支撑技术研究(K-GD2012-292) |
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A congestion avoidance algorithm based on the service priority for electric power dispatching data network |
ZENG Ying,LI Wei-jian,CHEN Yuan-yuan,TANG Liang-rui |
(Power Dispatch and Control Center of Guangdong Power Grid, Guangzhou 510600, China;State Key Laboratory of Alternate Electrical Power with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China) |
Abstract: |
To ensure the reliability of electric power dispatching data network, a congestion avoidance algorithm based on the dispatching data service priority is proposed. Firstly, according to different requirements for the delay and bandwidth, the dispatching data services can be divided into several services with different priorities. In accordance with the service priorities, the positions of data packets are adjusted in the serious or moderate congestion node cache. The services with low priority are discarded, which are located after serious congestion threshold, and their source nodes are informed to choose route. Then, the fitness function is built and the optimal routing is selected employing binary particle swarm optimization (BPSO) algorithm. Simulation results show that the quality of service (QoS) of the services with high priority is firstly ensured. Meanwhile, the network resource can be optimized and network loads can be balanced. |
Key words: electric power dispatching data network service priority node congestion congestion avoidance binary particle swarm
optimization (BPSO) |