计及倒换时延的需求响应业务P圈保护策略
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摘要
为应对日益增长的需求响应业务传输带宽需求,该文设计了一种考虑节点与链路业务承载能力的动态负载均衡模型,利用该模型能够有效实现网络局部业务疏导,将业务导向负载能力大的且保护水平高的链路上。同时,利用重要度将需求响应业务与非需求响应业务进行区分。在该基础上利用启发式算法自适应学习,有选择地针对需求响应业务提供不同的保护方式。以传统P圈配置和复用的方式为低重要度的业务配置保护路径,而高重要度的业务分别复用已配置P圈中单链路故障下的倒换时延最小保护路径。从而进一步提高资源利用率,降低阻塞率。仿真实验结果表明,所提的基于动态负载均衡的最小倒换时延P圈保护策略能在一定程度上提高资源利用率,降低冗余度的同时,实现重要等级高的业务倒换时延最小化目标局部最优求解。
In order to adapt to the increasing requirement of demand response services in bandwidth resource, a dynamic load balance model is proposed to reduce the burden on the power communication network. This model can analyze the distribution of services in each node and link of network, and realize the goal of traffic grooming. We also set the demand response connection request as the high-importance service than others. Based on the routing and dynamic load balancing, a method which can reuse previous established p-cycles was given. It can make differentiated protection with different importance level. And the more importance services become, the more likely services will be protected with the best p-cycles. Those importance services can have the best backup protection paths with the minimum protection switching latency, when the single-link failure is happening. The simulation results verified the effectiveness of the method. It can reduce the network blocking rate without affecting the resource redundancy.
In order to adapt to the increasing requirement of demand response services in bandwidth resource, a dynamic load balance model is proposed to reduce the burden on the power communication network. This model can analyze the distribution of services in each node and link of network, and realize the goal of traffic grooming. We also set the demand response connection request as the high-importance service than others. Based on the routing and dynamic load balancing, a method which can reuse previous established p-cycles was given. It can make differentiated protection with different importance level. And the more importance services become, the more likely services will be protected with the best p-cycles. Those importance services can have the best backup protection paths with the minimum protection switching latency, when the single-link failure is happening. The simulation results verified the effectiveness of the method. It can reduce the network blocking rate without affecting the resource redundancy.
引文
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[15]Li B,Yang J,Qi B,et al.Application of p-Cycle protection for the substation communication network under SRLG constraints[J].IEEE Transactions on Power Delivery,2014,29(6):2510-2518.
[16]吴润泽,胡秀园,李彬,等.电力ASON中基于SRLG完全分离P圈的链路故障保护算法[J].电力系统保护与控制,2013,41(5):119-125.Wu Runze,Hu Xiuyuan,Li Bin,et al.A link failure protection algorithm applying to power automatic switched optical network based on P-cycle with completely separated SRLG[J].Power System Protection and Control,2013,41(5):119-125(in Chinese).
[17]李彬,卢超,祁兵,等.一种适用于电力需求响应业务的p圈保护方法:CN,106850378A[P].2017-01-13.Li Bin,Lu Chao,Qi Bing,et al.P-cycle(Pre-configured Cycle)protection method applicable to power demand response services:CN,106850378A[P].2017-01-13(in Chinese).
[18]Constantinou C K,Ellinas G.A load balancing technique for efficient survivable multicasting in mesh optical networks[J].Optical Switching and Networking,2016,22:1-8.
[19]赵大平,孙业成.浅析SDH光纤通信传输继电保护信号的误码特性和时间延迟[J].电网技术,2002,26(10):66-70.Zhao Daping,Sun Yecheng.A preliminarily analysis of characteristics of code error and time delay of protective relaying signals transmitted by SDH optical fibre communication system[J].Power System Technology,2002,26(10):66-70(in Chinese).
[2]王蓓蓓,孙宇军,李扬.不确定性需求响应建模在电力积分激励决策中的应用[J].电力系统自动化,2015,39(10):93-99,150.Wang Beibei,Sun Yujun,Li Yang.Application of uncertain demand response modeling in power-score incentive decision[J].Automation of Electric Power Systems,2015,39(10):93-99,150(in Chinese).
[3]牛文娟,李扬,王蓓蓓.考虑不确定性的需求响应虚拟电厂建模[J].中国电机工程学报,2014,34(22):3630-3637.Niu Wenjuan,Li Yang,Wang Beibei.Demand response based virtual power plant modeling considering uncertainty[J].Proceedings of the CSEE,2014,34(22):3630-3637(in Chinese).
[4]Ledva G S,Vrettos E,Mastellone S,et al.Managing communication delays and model error in demand response for frequency regulation[J].IEEE Transactions on Power Systems,2018,33(2):1299-1308.
[5]江苏省经信委.关于印发《江苏省电力需求响应实施细则》的通知[EB/OL].电力能源处.2015[2015-6-25].http://etc.wuxi.gov.cn/uploadfiles/201506/29/2015062914471541246473.pdf.
[6]Jiangsu Economic and Credit Commission.Notice on the issuance of the"Power demand response implementation rules of Jiangsu province"[EB/OL].Electricity and Energy Department.2015[2015-6-25].http://etc.wuxi.gov.cn/up loadfiles/201506/29/2015062914471541246473.pdf.
[7]Hsieh S C,Ku T T,Chen C S,et al.Broadcasting control of intelligent air conditioners using power-line-carrier technology[J].IEEE Transactions on Industry Applications,2015,51(2):1890-1896.
[8]Kounev V,Tipper D.Advanced metering and demand response communication performance in Zigbee based HANs[C]//Proceedings of 2013 IEEE Conference on Computer Communications Workshops.Turin,Italy:IEEE,2013:31-36.
[9]Zheng L,Lu N,Cai L.Reliable wireless communication networks for demand response control[J].IEEETransactions on Smart Grid,2013,4(1):133-140.
[10]李彬,杨娇,熊克卿,等.面向电力业务需求的P圈/快速重路由混合故障保护算法[J].电力系统自动化,2016,40(7):113-120.Li Bin,Yang Jiao,Xiong Keqing,et al.Service-oriented hybrid P-cycle/Fast reroute protection algorithm in electric power systems[J].Automation of Electric Power Systems,2016,40(7):113-120(in Chinese).
[11]Saxena N,Roy A,Kim H S.Efficient 5G small cell planning with e MBMS for optimal demand response in smart grids[J].IEEE Transactions on Industrial Informatics,2017,13(3):1471-1481.
[12]Kashyap A,Callaway D.Controlling distributed energy constrained resources for power system ancillary services[C]//Proceedings of 2010 IEEE 11th International Conference on Probabilistic Methods Applied To Power Systems.Singapore:IEEE,2010:407-412.
[13]Niyato D,Wang P,Han Z,et al.Impact of packet loss on power demand estimation and power supply cost in smart grid[C]//Proceedings of 2011 IEEE Wireless Communications and Networking Conference.Cancun,Quintana Roo,Mexico:IEEE,2011:2024-2029.
[14]Doucette J,He D,Grover W D,et al.Algorithmic approaches for efficient enumeration of candidate p-cycles and capacitated p-cycle network design[C]//Proceedings of the Fourth International Workshop on Design of Reliable Communication Networks.Banff,Alberta,Canada:IEEE,2003:212-220.
[15]Li B,Yang J,Qi B,et al.Application of p-Cycle protection for the substation communication network under SRLG constraints[J].IEEE Transactions on Power Delivery,2014,29(6):2510-2518.
[16]吴润泽,胡秀园,李彬,等.电力ASON中基于SRLG完全分离P圈的链路故障保护算法[J].电力系统保护与控制,2013,41(5):119-125.Wu Runze,Hu Xiuyuan,Li Bin,et al.A link failure protection algorithm applying to power automatic switched optical network based on P-cycle with completely separated SRLG[J].Power System Protection and Control,2013,41(5):119-125(in Chinese).
[17]李彬,卢超,祁兵,等.一种适用于电力需求响应业务的p圈保护方法:CN,106850378A[P].2017-01-13.Li Bin,Lu Chao,Qi Bing,et al.P-cycle(Pre-configured Cycle)protection method applicable to power demand response services:CN,106850378A[P].2017-01-13(in Chinese).
[18]Constantinou C K,Ellinas G.A load balancing technique for efficient survivable multicasting in mesh optical networks[J].Optical Switching and Networking,2016,22:1-8.
[19]赵大平,孙业成.浅析SDH光纤通信传输继电保护信号的误码特性和时间延迟[J].电网技术,2002,26(10):66-70.Zhao Daping,Sun Yecheng.A preliminarily analysis of characteristics of code error and time delay of protective relaying signals transmitted by SDH optical fibre communication system[J].Power System Technology,2002,26(10):66-70(in Chinese).