智能变电站HIL仿真.doc

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智能变电站HIL仿真

摘要

智能变电站的发展支撑着智能电网的发展，同样地继电保护装置和系统支撑着智能变电站的顺利运行，因此继电保护装置是否能够可靠运行十分重要。本文采用HIL硬件在环实时仿真的模式，建立智能变电站系统模型，测试继电保护装置和系统。智能变电站HIL仿真系统采用Simulink电力仿真库和Matlab实时操作系统，结合分布式实时同步协议转换器和信号发生器，模拟智能变电站的一次电气设备的真实运行场景和实时状态，测试保护厂商相关的保护系统和装置。该仿真系统采用实时硬件在环和基于开源开放的Matlab建模平台的仿真方式，降低了选用专用实时仿真软件的成本，为保护厂商进行集成测试和电网进行设备运行检修提供了的途径，为科研人员和学生提供了开放友好的平台。

本论文基于上述实时仿真系统搭建了220kV智能变电站模型，以三项三绕组变压器为核心，分别连接220kV、110kV和66kV线路，设计了110kv线路差动保护，测试和验证了许继继电保护装置的纵联差动保护功能。

关键词：智能变电站；继电保护装置；HIL硬件在环；Matlab

HILSimulationofSmartSubstation

Abstract

Thedevelopmentofsmartsubstationssupportsthedevelopmentofsmartgrids.Similarly,relayprotectiondevicesandsystemssupportthesmoothoperationofsmartsubstations,soitisveryimportantwhethertherelayprotectiondevicescanoperatereliably.Inthisthesis,HILhardware-in-the-loopsoftreal-timesimulationmodewasusedtoestablishanintelligentsubstationsystemmodelandtestedrelayprotectiondevicesandsystems.TheintelligentsubstationHILsimulationsystemusedSimulinkpowersimulationlibraryandMatlabreal-timeoperatingsystem,combinedwithdistributedreal-timesynchronousprotocolconversionandsignalgenerator,simulatedtherealoperatingscenariosandreal-timestatusofprimaryelectricalequipmentinsmartsubstations,testprotectionsystemsanddevicesrelatedtoprotectionmanufacturers.Thesimulationsystemusedreal-timehardware-in-the-loopandsimulationmethodsbasedontheopenMatlabmodelingplatform,whichreducesthecostofselectingspecialreal-timesimulationsoftware.Itprovidesawayforprotectionmanufacturerstocarryoutintegrationtestsandpowergridsforequipmentoperationandmaintenance,andprovidesanopenandfriendlyplatformforresearchersandstudents.

Thisthesisbuilta220kVsmartsubstationmodelbasedontheabovereal-timesimulationsystem,withthreethree-windingtransformersasthecore,respectivelyconnecting220kV,110kVand66kVlines,designing110kVlinediffer