1、華北電力大學(xué)（北京）碩士學(xué)位論文負荷特性對電壓穩(wěn)定性影響的研究姓名：劉鵬申請學(xué)位級別：碩士專業(yè)：電力系統(tǒng)及其自動化指導(dǎo)教師：賀仁睦20020201’忙北電力大學(xué)f北京懶士學(xué)位論文ABSTRACTABSTRACTThisthesiscarriesoutstudiesaroundtheimpactofIoadcharacteristicsonvoltagestability—hekeyproblemofpowersystemvoltages

2、tabilityanalysisTheimpactofloadcharacteristicsonstaticvoltagestabilityisanalyzedwiththemethodsbasedonVP—and—VQcurvesandthedynamicvoltagestabilityofdifferenlIoadsinfhecontextofbothsmalIdisturbancesandlargedisturbancesisst

3、udiedwiththemethodoftimedomainsimulation，Insum1hemaincontentsofthethesisinclude：1AnalysesoftheimpactofdifferentloadcharacteristicsonstaticvoltagestabilitywiththeVP—andVQCurvesofpowersystemloads2Simulationofdynamicvoltage

4、stabilityofinductionmotorinthecontextofsmalldisturbancesandanalysesofthesimulationresultswithitsloadcharacteristics3Simulationofdynamicvoltagestabilityofthe(composite)inductionmotorloadinthecontextoflargedisturbancesanda

5、nalysesofthesimulationresultswiththeirIoadcharacteristics4SimulationandcomparisonsofthedynamicvoltagestabilityofconstantimpedanceIoadconstantcurrentloadandconstantpowerIoadinthecontextoflargedisturbances，andanalysesofthe

6、simulationresultswiththeirloadcharacteristics5Analysesoftheinternalrelationsandtheessentialdiff《；rencesamongvoltageinstabilityvoltagecollapseandloadinstabilityonthebasisofthesimulationresultsandtheiranalyses6Presentation

7、oftheessentialexplanationsofbothvoltagestabilityandthemechanismofvoltagecollapse，whichhold：theessenceofvoltagestabilityisthebalancebetweenthepowerthatloadsabsorbfromthenetworktomeettherequirementsofenergyconversionandthe