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1、第43卷第l6期電力系統(tǒng)保護(hù)與控制V_0I.43No.162015年8月16日PowerSystemProtectionandControlAug.16,2015基于模塊化多電平變換器的儲(chǔ)能系統(tǒng)綜述李善穎,吳濤,任彬,徐永海,袁敞(1。華北電力科學(xué)研究院有限責(zé)任公司,北京100045;2.新能源電力系統(tǒng)國(guó)家重點(diǎn)實(shí)驗(yàn)室(華北電力大學(xué)),北京102206)摘要:儲(chǔ)能系統(tǒng)是當(dāng)前和未來(lái)新能源電力系統(tǒng)中的關(guān)鍵組成部分,儲(chǔ)能系統(tǒng)的引入促進(jìn)了電網(wǎng)結(jié)構(gòu)的優(yōu)化,實(shí)現(xiàn)了新能源的友好接入和協(xié)調(diào)控制。模塊化多電平換流器(Modularmultilevelconverter,MMC)作為多電平換流器家族中的
2、一員,在中高壓大功率場(chǎng)合有著廣泛的應(yīng)用。對(duì)基于模塊化多電平變換器的儲(chǔ)能系統(tǒng)的研究情況進(jìn)行歸納和總結(jié)。首先簡(jiǎn)要介紹了MMC的拓?fù)浣Y(jié)構(gòu)和技術(shù)特點(diǎn),其次對(duì)各種儲(chǔ)能技術(shù)的概況進(jìn)行總結(jié)。然后著重討論了儲(chǔ)能單元接入MMC的方式和帶有儲(chǔ)能裝置的MMC的調(diào)制策略、子模塊電容電壓均衡、主電路參數(shù)設(shè)計(jì)、控制方面等關(guān)鍵技術(shù)的研究進(jìn)展情況。最后對(duì)基于模塊化多電平變換器的儲(chǔ)能系統(tǒng)研究的重點(diǎn)問(wèn)題提出了建議。關(guān)鍵詞:模塊化多電平換流器;儲(chǔ)能系統(tǒng);接入方式;脈沖調(diào)制;電壓控制;控制策略ReviewofenergystoragesystembasedonmodularmultilevelconverterLISha
3、nying,WUTao,PENBin,XUYonghai,YUANChang(1.NorthChinaElectricPowerResearchInstitute,Beijing100045,China;2.StateKeyLaboratoryforAlternateElectricalPowerSystemwithRenewableEnergySourcesorthChinaElectricPowerUniversity),Beijing102206,China)Abstract:Energystorage(ES)systemisakeycomponentinnewenergyp
4、owersystematpresentandinthefuture,applicationofenergystoragesystemwillpromotetheoptimizationofthegridstructureandachievefriendlyaccessandcoordinationcontrolofnewenergy.Themodularmultilevelconverter(MMC)isamemberofmultilevelconverterfamily,andhasbeenwidelyappliedinthemedium—orhigh—voltagehighpo
5、werapplications.ProgressofenergystoragesystembasedonMMCisconcluded.Firstly,theoperationprinciplesandthetechnicalcharacteristicsofMMCareintroducedbriefly;secondly,thedevelopmentofdiferentenergystoragetechnologyisintroduced.ThentheenergystorageintegratingmethodsandthekeytechnologiesofMMC-ESsucha
6、smodulationstrategy,sub-modelcapacitorvoltagebalancing,maincircuitparameterdesignandcontrolstrategyaresummarizedandanalyzed.Finally,suggestionsforkeyissuesofMMC-ESareproposed.ThisworkissupportedbyNationalHigh—techR&DProgramofChina(No.2011AA05A113).Keywords:modularmultilevelconverter(MMC);energ
7、ystoragesystem;integratingmethods;pulsemodulation;voltagecontrol;controlstrategY中圖分類(lèi)號(hào):TM77文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1674.3415(2015)16.0139.08行存儲(chǔ),并在需要時(shí)重新轉(zhuǎn)換為電能予以釋放。ESS0引言主要包括儲(chǔ)能單元和功率轉(zhuǎn)換系統(tǒng)(Powerconversion在新能源電力系統(tǒng)中采用儲(chǔ)能技術(shù)能夠有效地system,PCS)兩大組成部分,對(duì)PCS采用合理的控實(shí)現(xiàn)可