基于P_Q分解法的电力系统潮流计算仿真研究

284Vol．28No．4201007JournalofJiamusiUniversityNaturalScienceEditionJuly20101008－1402201004－0537－04P－Q①154002P－QMATALBP－Q．P－QTM712A0．．．．．．．．．1．12345612．2PQP－Q．P－QΔPΔ[]Q=HN[]JLΔθΔ[]V/V1ΔP=HΔθ+NΔVVΔQ=JΔθ+LΔVV2．1NJ1ΔP=HΔθΔQ=LΔ{V/V3①2010－06－111970－．2010122nn．HL3．10°～20°cosθij≈1GijsinθijB〕{ij4BLiBLi=QiL2I＜＜BiiQi＜＜V2iBii55Hii=V2iBiiHij=ViVjBijLii=V2iBiiLij=ViVjBij63H=L=V21B11V1V2B12…V1V2B1nV2V1B21V22B22…V2VnB2nVnV1Bn1VnV2Bn2…V2nBnn7H=L=V1…00…VnB11B12…B1nB21B22…B2nBn1Bn2…BnnV1…00…Vn8838354P－QΔP1ΔP2ΔPn=V1…00…V2B11B12…B1nB21B22…B2nBn1Bn2…BnnV1Δθ1V2Δθ2VnΔθn9ΔQ1ΔQ2ΔQn=V1…00…VnB11B12…B1nB21B22…B2nBn1Bn2…BnnΔV1ΔV2ΔVn1011．072p．u．@bus91．100p．u．@bus1－4．62deg@bus94．89deg@bus2PI^2*R－1．39MW@line8－9QI^2*X－9．36MVAr@line8－2V1……Vn－1=1V1……1VnΔP1/V1ΔP2/V2ΔPn/Vn=B11B12…B1nB21B22…B2nBn1Bn2…BnnV1Δθ1V2Δθ2VnΔθn11ΔQ1/V1ΔQ2/V2ΔQn/Vn=B11B12…B1nB21B22…B2nBn1Bn2…BnnΔV1ΔV2ΔVn12P－Q．2MWMVArMWMVArMWMVAr11～489．8012．97－89．80－9．05－0．0003．9224～535．22－3．89－35．04－13．880．1810．9835～6－54．96－16．1255．97－22．191．0104．4043～694．19－22．63－94．1927．29－0．0004．6656～738．22－5．10－38．07－18．680．1491．2667～8－61．93－16．3262．210．820．2792．3678～2－134．329．33134．320．03－0．0009．3688～972．11－10．15－70．72－18．921．3947．0199～4－54．28－31．0854．5812．940．2952．51Total3．30736．463MATLABP－Q．MATLAB、LRMATLAB．MATLAB．1291PQ．2、．．93520104P－QMATALBMAT-ALB．．1．J．199658－12．2．J．200919127－131．3．J．20103345－348．4．J．2000457－59．FlowCalculationSimulationofPowerSystemBasedonP－QDecompositionMethodGAOChang－baoJiamusiPowerBureauJiamusi154002ChinaAbstractConventionalpowersystemisusedastheresearchobjectthebasicmodelofpowerflowcalcu-lationisestablishedthebasicprinciplesofthePQdecompositionpowerflowcalculationisanalyzedthroughMATALBprogrammingrunningthePQdecompositionoftheflowcalculationprocess．thesimulationresultsshowthattheproposedmethodinthispaperiseffective．Keywordspowersystemflowcalculation櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌櫌P－Qdecompositionmethod536TheNonlinearDisplacementCompensationofOpticalFiberSensorsBasedonBPAlgorithmFANTing－dongWANGYue－nanDUXuCollegeofInformationandElectronicTechnologyJiamusiUniversityJiamusi154007ChinaAbstractAneuralnetworkwithalinearsensorcompensationmodelwasproposedaspartofcompensa-tionfortheexistenceofnon－linearprobleminopticalfiberdisplacementsensorapplications．ThebasicideawastouseBPalgorithmtotakethesensoroutputastheneuralnetworkinputdata．Displacementsensorfortheneuralnetworkinputwasthedesiredoutputtoachievelineardisplacementmeasurementcompensationbyadjus-tingtheneuralnetworkweightstoneuralnetworkoutputandtheexpectedapproximation．Thesimulationresultsshowthatthemethodiseffectivetoimprovetheaccuracyofthesensorandeffectivetocompensatethenonlineari-ty．KeywordsBPalgorithmopticalfibersensornonlinearcompensation045