摘要
配电网广域保护根据保护系统架构以及保护原理的不同,存在多种保护方案,不同方案的速动性和可靠性需要得到论证,而不同方案的论证则依赖于定量化的通信性能分析。配电网广域保护需要通过信息交互的通信网络实现多站点的通信,广域保护信息流及通信性能分析是论证保护方案性能的重要指标。鉴于现阶段基于信息流对配电网广域保护方案研究的不足,该文分析了不同广域保护方案的信息流特征,并基于 OPNET仿真平台构建适用于配电网广域保护的仿真建模,进行配电网广域保护系统信息流仿真分析。通过信息流延时、流量评价,给出配电网广域保护系统结构选取、原理选择的建议以及依据,该工作具有重要的工程应用价值。
According to the protection system architecture and protection principle,there are various protection schemes for the wide-area protection of distribution network.The quickness and reliability of different schemes need to be verified,and the verifications for different schemes rely on quantitative communication performance analysis.Wide-area protection of distribution network needs to realize multi-site communication through communication network of information interaction and wide-area protection information flow and communication performance analysis are also important indicators to demonstrate the performance of protection scheme.In view of the current research on the wide-area protection scheme of distribution network based on information flows,this paper analyzes the information flow characteristics of different wide-area protection schemes,and builds simulation which is suitable for wide-area protection of distribution network based on the OPNET.Moreover,based on the model,the information flow of wide-area protection system on the distribution network is analyzed.Suggestions for the structure selection and principle selection of wide-area protection system on the distribution network are given via evaluating the information flow delay and traffic.The paper has important value for the application of engineering field.
作者
李艳
张安龙
郑曦
Li Yan;ZHANG An-long;ZHENG Xi(Shenzhen Power Supply Bureau Co.Ltd., Shenzhen 518001, China)
出处
《电力科学与技术学报》
CAS
北大核心
2019年第2期53-60,共8页
Journal of Electric Power Science And Technology
基金
中国南方电网有限责任公司科技项目(SZKJXM20160056)
