基于多agent技术的无功优化控制系统

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1、山东大学硕士学位论文systemnIisarticleintroducesLFSandADSintothecooperativestrategy,solvingthecooperativequestionbetweenintelligentbodiesThevirtueofLFSisthatitcanreducemosttimeofscheduleThebasicideais：Ifthecooperatorconcludesthatthenodewhichgoingwell，thentheserverisfound．Onthecontrary,if

2、thenodecouldnotserve(overflow&systemcolTHpt)cominuously,thecooperatormusttakeonanewscheduletofounditItwouldownhighreal-timecharacteristic．ADS’Swhollydynamiccharacteristicisreflectedthateveryrequestwillcausethewhollycoordination．ThatischoosingthebestKnodesfromallthenodeswhichca

3、llprovideservice．Theprocedureofitis：Frombeginning，thecooperatorasksallthenodewhoCaa'lserveandwaitforthereply．Thisreplyincludesthecapacityandloadoftransformer．Whenitreceivesthefullreply,knodesisfoundwhichincreasethemarginalcostminimalonthebaseofsocalledASSIGN-U-routingofvirtual

4、circuit．Theresultshowedthattheelectricpowerautomationsystemwouldownhighreal-timecharacteristicandhighstabilityifitmakesuseofthisdistributionarchitectureandschedulealgorithm，CombinedwiththeMulti—·Agenttechnology,aMulti-·Agentsystembaseddistributedvoltageandreactivepowersystemis

5、proposed．Andthetheory，constructionandframeworkofvoltageandreactivepoweroptimizationbasedonMulti—Agentsystemarepresented．Meanwhile，thesubsystemconstructionofanAgentstationingeneralautomationsystemsofdistributionnetworksispresentedSomeinstructiveworkabouttheMulti·Agentsystembase

6、ddistributedvoltageandreactivepowersysteminthisdissertationlaysafoundationforfurtherresearchanddiscussioninthisaspectKeywords：Distributedandparalleloptimization；Voltageandreactivepoweroperatingoptimization；Decompositionandcoordinationmethod；Auxiliaryproblemprinciple；Multi—Agen

7、ttechnology7山东大学硕士学位论文1．1前言第一章绪论电力系统的中心任务是保证电网的安全、可靠、经济和优质运行。随着电力法的颁布和电网商业化运营的深入，保证用户的电能质量已经日益现出其重要性；而电网自身也面l临着进一步降低运行损耗、提高供电可靠性的挑战。电压是电力系统电能质量的重要指标之一。电压品质不仅关系到电力系统电能质量的优劣，而且还直接影响电网自身运行的安全性和经济性。电压是电能质量的一个重要指标，它的波动会缩短用电设备寿命和用电设备的正常工作，过大的电压偏移，还将对电网稳定、安全和经济运行带来极其不利的影响。近年来。由于国民经济发

8、展迅速，用电负荷需求量不断增大，并且对电能质量、供电可靠性要求愈来愈高。有关统计资料表明，超过允许范围的电压偏移将对用户带