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《廣域相量測量裝置中相量測量精度的研究》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、關(guān)鍵詞：廣域測量系統(tǒng)，相量測量，自適應(yīng)卡爾曼濾波，MatlabABSTRACTInthisthesisthesignificanceandprogressofthewideareaphasormeasurementareintroducedatfirst，anditsapplicationinthepowersystemispresentedatthesametime．Thenthewideareameasurementsystemstructureandthestructureofphasormeasurementunitframeworkandmodularstructur
2、eareintroduced．Inturn，thezero·crossingdetectionmethodandtheDFTalgorithmarediscussedindetail，andtheadvantagesanddisadvantagesofbothmethodsareanalyzed．AtthesametimethecalculationofrecursiveFourieralgorithmispresented，andamodifiedrecursivealgorithmispresentedthroughtransformation．Finally,Kalman
3、filteringalgorithmisintroducedinthispaper,andaself-adaptiveKalmanfilteringalgorithmispresented．ThentheinputsignalmodelofPowerSystemisconstructedandbesimulatedbyMatlabsoftware．Theanalysisshowedthatthealgorithmhasfastercomputationspeedandhigherprecision．WuShaojie(Circuitsandsystem)Directedbypr
4、of．LiYueqiaoKEYWORDS：wideareameasurement，phasormeasurement，self-adaptiveKalmanfiltering，Matlab位論文．．?．?．?．．?．．???．．?．???．?．??．??．1????????????????????????．．1????????????????????????．．：!????????????????????????．．：I?．???????????????????????．：；?．???．?．．．????．．．．．?．．．?????．．?．???．4．．．．．．．．．．．．．．．
5、．???．．．．．．．．．．．．?．．．．?．．．．．．．．．．．?．．．．．．．．．?．4．?????．．．．???????．??????????．．4?????????????．???????．．(；2．1廣域相量測量系統(tǒng)的結(jié)構(gòu)??????????????????????．62．1．1WAMS基本結(jié)構(gòu)????????????????????????．．62．1．2系統(tǒng)結(jié)構(gòu)???????????????????????????82．1．3PMU的行點?????????????????????????．．102．2相量測量裝置(PMU)的結(jié)構(gòu)??????????????????
6、?．．112．2．1相量測量裝置(PMU)的結(jié)構(gòu)框架????????????????112．2．2相量測量裝置(PMU)的模塊化結(jié)構(gòu)???????????????ll第三章相量測量原理及算法研究?????????????????????．．153．1引言??????????????????????????????????????153．2信號過零檢測法?????????????????????????153．3離散傅立葉算法????????????????????????????．．163．3．1常規(guī)離散傅立葉算法?????????????????????．163．3．2遞推離
7、散傅立葉算法?????????????????????．18：3．3．3改進型離散傅立葉算法????????????????????．193．3．4改進型離散傅立葉算法的頻率測量???????????????．21第四章卡爾曼濾波算法及其發(fā)展?????????????????????．．234．1引言‘??????????????????????????????????????????????????．234．2卡爾曼濾波理論??????????????????????????244．2．1
