摘要
基于扩展WF-Net对配电网故障诊断与抢修流程进行了建模与优化.首先将流程涉及的信息系统封装成具有松散耦合特性的IT服务;然后扩展了WF-net的时间集和颜色集,提出了基于IT服务的赋时有色工作流网(TCWFN-ITS),以显式地表达业务流程与IT服务的调用关系.最后,针对某电力公司配电网故障诊断与抢修流程,采用TCWFN-ITS进行建模,使用Petri网建模工具CPN Tools进行仿真分析,通过并行执行任务、合并任务、优化服务占用端口数量等手段,实现了配电网故障诊断与抢修流程性能提升和IT服务的平衡配置,验证了所提方法的可行性和有效性.
The modeling and optimization of distribution network fault diagnosis and repair process has been researched, based on the extended WF-net. Firstly, information systems were encapsulated into the loosely-coupled IT services. Secondly, the time set and color set of WF-net were extended, then the Timed Colored WF-net with IT Services （TCWFN-ITS） was put forth to explicitly demonstrate the calling relationship between business processes and IT services. Finally, this paper illustrates with a power company’s distribution network fault diagnosis and repair process, employs TCWFN-ITS for modeling, and applies Petri net tool-CPN Tools for simulation analysis to enhance the performance of business processes and balance the calling of IT services, and verify the feasibility and effectiveness of the proposed approach.
出处
《计算机系统应用》
2014年第7期126-130,共5页
Computer Systems & Applications
关键词
配电网
故障诊断
抢修流程
IT服务
流程优化
PETRI网
distribution network
fault diagnosis
repair process
IT services
process optimization
petri net
