Research On Analysis Of Voltage Sag Influence Domain Based On Storm

In recent years,the power grid has been expanding.With the increasing real-time data sampling rate of power grid equipment,the dispatching monitoring system must have the ability to process large amounts of real-time data quickly.For the grid dispatching and maintenance departments,after the voltage sags,the area affected by the voltage sag needs to be quickly grasped so as to better meet the demand of the inspection and quarantine departments to respond quickly to faults.In real-time data processing,Storm real-time processing platform with real-time response capability,high reliability,easy to expand and so on.Storm open source widely used at home and abroad,real-time processing of big data grid can also consider using Storm real-time processing framework.Based on the static data of CIM model and the power grid dynamic data of SCADA system and voltage sag information monitored by power quality intelligent information system,this paper analyzes the influence region of voltage sag under real-time topological analysis of Storm platform.Considering the large scale of power grid and the long time of power network topology analysis,this paper divides the process of power network topology analysis into two parts:static topology analysis and dynamic topology analysis.Based on the static topology analysis results,dynamic topology analysis only concerns switch information pairs The dynamic topology processing of the power grid will make the real-time topology analysis more efficient and lay a solid foundation for the subsequent analysis of the influence area of voltage sag in voltage sag data.Under the framework of Storm,this paper divides the entire process of voltage sag analysis into two stages:data acquisition,topology analysis and voltage sag analysis.It is implemented in each component of Storm framework and forms real-time data flow according to components As a physical task for the Storm cluster,executing on the Storm cluster.After that,based on the real-time topology analysis results of the power grid and the voltage sag data,the influence scope of the voltage sag is analyzed based on the short circuit calculation.By comparing the timeliness of voltage sag impact analysis in single cluster and Storm cluster environment,it is verified that the scheme based on Storm for rapid analysis of voltage sag impact region is feasible.