Study And Improvement Of Power Enterprise Information Integration Middleware

With further reform of electric power system and introduction of competition mechanism,higher operation efficiency and agility is required by power market,which makes electrical power enterprises have a information platform that can deal with amount of sea data effectively,quickly and adequately,knowledge of integration and management based on this platform.However, electrical power enterprises installed and developed different subsystem according to particular demand of each business section in different period to carry out function respectively.Because of different function ,supply company and development period,these subsystems pay attention to different aspect of electric power object and build mold using exclusive method,which makes these subsystems form a"information isolated island". This island prevents them exchanging data or sharing information in enterprise scope,and causes too many problems such as:repeat the construction,waste of resources,leak of information and data source, inefficacy information gathing and shortage of knowledge obtain.This paper researchs the related problems of electrical power enterprise information integration to solve problems described above based on information technique.Firstly this paper analyzes the advantage and disadvantage of current project,then gives a way according to IEC61970 standard,which not only can intergrate original subsystem in standard way ,protecting customer investment but also could make the new subsystem join it in a convenient way. Each subsystem injects itself into the integrated bus in a loose coupling way ,which can attain"pluy and play"of the software.This paper analyzes the object location function shortage of Ice used in integrated bus,and fetchs in DHT according to power system characteristics ,then puts forward a kind of distributed object location mechanism based on DHT.This mechanism inherits the expansibility and fault toleration of DHT, it shares all workload to each node in system,which can discard the bottleneck flaw in Ice.This paper puts forward a improved DHT arithmetic,and gives some arithmetics about location information release,query and maintenance based on this improved DHT,then analyzes their rationality. According to the characteristic that compute-bound and I/O-bound business both exist at the same time in power system,this paper analyzes the advantage and disadvantage of Ice's thread-pool strategy,and puts forward a kind of multithread-mulithread strategy to depress the pressure of network I/O,and do the perfoamance test comparison.