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1、合肥工業(yè)大學(xué)碩士學(xué)位論文柱上型高壓無功自動補(bǔ)償系統(tǒng)設(shè)計(jì)與制作姓名:秦建民申請學(xué)位級別:碩士專業(yè):電氣工程指導(dǎo)教師:孫鳴;李中樹20030416柱上型高壓無功自動補(bǔ)償系統(tǒng)設(shè)計(jì)與制作摘要文章以油陽6KV輸配電線路為例,針對多分支樹狀結(jié)構(gòu)線路的特正i,研制出由單片機(jī)系統(tǒng)控制的戶外拄卜型高壓電容器自動補(bǔ)償系統(tǒng)。該系統(tǒng)采用了測量點(diǎn)與補(bǔ)償點(diǎn)與分丌的方式,實(shí)現(xiàn)了區(qū)域性無功負(fù)荷監(jiān)視,使無功補(bǔ)償點(diǎn)可以安置在區(qū)域性分散負(fù)荷的中心部位,最大程度地利用了補(bǔ)償容量,有效地縮短了無功電流傳輸?shù)木嚯x,降低了電網(wǎng)的有功損耗。系統(tǒng)在優(yōu)化控制技術(shù)中采用了電容器補(bǔ)償控制的兩段控制模型,不僅解決了分支線路之
2、'白J穿越無功電流
3、的最優(yōu)控制問題,實(shí)現(xiàn)了功率因數(shù)的自動跟蹤,而且使整個(gè)系統(tǒng)的可靠性大大提高。文章利用電磁感應(yīng)原理和數(shù)字通訊技術(shù)結(jié)合試驗(yàn)設(shè)計(jì)出電源自給式高壓線路無線信號采集裝置,解決了配電網(wǎng)分支線路無功參數(shù)不易測量的問題。文章還介紹了系統(tǒng)無功補(bǔ)償容量及安裝位置的計(jì)算方法,較為具體的講述了無功功率采集器、無功優(yōu)化控制器以及補(bǔ)償電容操作器等一系列裝置的設(shè)計(jì)方法和制作原理。通過經(jīng)濟(jì)技術(shù)比較提出了一整套切實(shí)可行的無功補(bǔ)償系統(tǒng)硬件制作方案。關(guān)鍵詞:柱上型、無功補(bǔ)償、兩段控制模型、無線數(shù)據(jù)采集TheDesignAndRealizationofHighVoltageReactivepowerAutomotiveCompe
4、nsationSystemOnPoleAbstractInoilfield,feederiineof6KVoftenhasmanybranches.Thepolehighvoltageautomotivecapacitorcompensationsystemcontrolledbysinglechipcomputerisdesignedforthissituation.Inthesystem,weseparatethemeasurepositionandcompensaionpositionandrealizethesupervisionofreactiveloadinlocalarea
5、Thusthereactivecompensatorcanbelocatedinthecenterofthedistributedloadintheareaandmakethebestuserofthecompensator’scapacity.ThedistanceflowedbythereactivecurrentisefficientlyreducedandtheactivelossofpowernetGoesdown.Two—stagecontrolmodelisadoptedintheoptimizedcontroltechniqueofthesystem.Itnotonlys
6、olvestheproblemofoptimizedcontrolofthereactivecurrentexchangingamongbranches,inotherwords,realizestheauto-trackingtothereactancefactor’butalsogreatlyimprovedthereliabilityofthesystem.Todesignthehighvoltagelinewirelesssignalacquisitiondevicewithself-feedsource,weappliedelectromagnetinductionprinci
7、pleanddigitalcommunicationtechnique.ThedeviceCanmeasurereactiveparametersindistributionpowernetwhicharegenerallyconsideredtohedifficultlymeasuredpaperalsointroducesthecalculatingmethodofthereactivecompensationcapacityanditsoptimallocation,thedesignmethodandrealizationprincipleoftheseriesdevices,s
8、uchasthereactivepoweracquisitiondevice,thereactivepoweroptimizedcontrollerandthecompensationcapacitoroperator,isseatedindetailThrougheconomicandtechnicalcomparison,arealistichardwareschemeofreactivepowercompensationsys