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201114、。。TU991．62B1673－9353201405－0031－04doi10．3969/j．issn．1673－9353．2014．05．008ApplicationofcascadespeedcontroltechnologyinlargepumpstationZhangQingHuangpujiangＲiverＲawWaterworksShanghaiChengtouＲawWaterCo．Ltd．Shanghai201114ChinaAbstractAimedatcurrentsituationofgreatlossbyuncontrollableoutflowlowefficiencyofoperationinlargewatersupplypumpstationthecontrolofpumpwoundrotorasynchronousmotorwasachievedinwaterdistributionoflargepumpstationbyfull-digitalthyristorcascadespeedcontrolabbreviatedas“cascadespeedcontrol”technologyanditwasstudiedandactuallyadopted．Itindicatedthatcascadespeedcontroltechnologywasmoresuitableforspeedcontrolinpumpmotoroflargepumpstationeveninoperationalcostandenergysavingeffectetc．Aftermodificationtheoperationalresultsindicatedthatcascadespeedcontroltechnologycouldproducesatisfiedenergysavingbenefitandcouldapplyinwatersupplyindustry．Keywordspumpstationcascadespeedcontroltechnologyenergysavingeffect12200×104m31/3。9m3/s6kV、1600kW6。、。。。22.1269m3/s·13·85201410WATEＲTECHNOLOGYVol．8No．5Oct．20146kV、1600kW。。。。。2.22.2.1MD＜MgMg。MD=Mg1。2.2.2β。50Hz。2.32.3.1①70%～95%。②0%～98%。2.3.2①。②。2.4①1/370%～95%。②1/3。③。。。④。⑤。3、、、20125。3.13.1.11。6kVSU2D=S·U20U20Ud。U2BUB。IdI2D。βUBIdI2DS·U20·23·85201410U2BI2B1ZK起动开关电机开关柜6kV频敏电阻起动装置电机开关柜4ZK全速开关3ZK调速开关逆变变压器U20VDK电抗器IdUdUBidS·U20ZP1ZP2ZP3ZP4ZP5ZP6KP1KP2KP3绕线式异步电动机U1I1BU1I1D2ZK逆变开关1Fig．1SchematicdiagramofcascadespeedcontrolprincipleId。。β。Ud=UB1．35·S·U20=1．35U2B·cosβS=U2B/U20·cosβ=K·cosβ。3.1.2、、、、、。2。3.23。3。、2。V1直流电压表MV逆变变压器ZJ-6300kVA6kV/180Vx2YY-12△-111ZK起动开关去自控系统通变电流回路JRL1600-201600kWV50=856VI30=1046Ane=296RPMSmar=0.326kV/50Hz1DL电机开关柜绕线式异步电动机塄1=6000VI1=208A4ZK全速开关ZC0ZA0ZB0RT1RT2RT3ZC2ZB2ZA2MY1MY2MY3C7C8C9R9R8R7ZA3ZB3ZC3ZA1ZB1ZC1ZP4BP1BP2●●电阻启动装置IM+IM-A2N2I-HT3电流变送器4~20mAI+FL1分流器3ZK调速开关ZP1KP1KP3ZKZP3ZP5C1C3R3R1R5C5RT415MY4C2R2KR2KR6KR4R4R6C6ZP2ZP6C4ZAI-I+RT6DK电抗器HT2电压变送器KP5N2A2N2ZKHT1电压变送器UD+UD-0~5VA2ZA2ZK逆变开关6kV/50HzID-ID+霍尔传感器电源至控制器直流电流反馈回路-15V+15V2DL逆变开关柜6kVHL1霍尔电流传感器NA0NB0NC0AA1KR51KR31KR11KR41KR61KR2C12R12C16R16C14R14去自控系统逆变电流回路UM+UM-4~20mART516MY51KR11KR41KP31KP6C11R11R13C131KR21KR5C15R15NCINA4NBINA1RT4RT5RT6NB4NC4MY7MY8MY9C17C18C19R17R18R1917KA2KP1MY62KP32KP52KP4KP7KP8KP92KP62KP2C2R24R26R22C22C26C21C23R23R21R252KR12KR32KR5C25NC3NB3NA3NA5NB5NC5MY10MY11MY12C27R27R28R29C29C28KKNA2NB2NC25ZK逆变开关2Fig．2Schematicdiagramofelectriccircuitincascadespeedcontrolmainloop·33·20141085CPURAMROMI/O接口打印机等上级计算机输出通道电源脉冲放大有源逆变器控制对象检测电路故障检测信号运转控制指令给定地址数据空间总线3Fig．3Basicstructureofcascadespeedcontrolsystembymicrocomputercontrol、。411#。4.11#143%。4.2。1#。10．4691#。11#1151939。11#Tab．1Powerconsumptionofasynchronous1#pumpbeforeandaftermodificationinLinjiangPumpStation1—23—45—67—89—1011—12/kW·h70436072702072762075188073521072758043736702706673906758406829107146607005156794904120805270/kW·h960011700123001560012300960071100/2184129490267372477222040270561519395。。1．M．1984．2．M．2007．1969－。E-mailqing0168@126．com2014－05－05·43·85201410