SIMOVERT MV Medium-Voltage Drives 660 kVA to 9100 ... - Industry

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2SIMOVERT MVSystem descriptionTechnical featuresLine supply Incoming transformer Drive converterSIMOVERT MV drives keep theline supply stressing low:The SIMOVERT MV drive converteris connected to the¦ The starting current is limited medium-voltage line supplyto the rated currentthrough a drive converter transformer.For the standard¦ There is only a low harmonic12-pulse DFE, a three-windingcomponent in the line currenttransformer is required, anddue to the 12-pulse diodeone five-winding transformer orrectifier DFE (Diode Fronttwo three-winding transformersEnd) used as standardfor the optional 24-pulse DFE(see Page 6/17).¦ Low reactive power drawn(cos j 1 > 0.96)¦ Optional 24-pulse diode rectifierfor applications wherethe harmonics fed back intothe line supply must be keptas low as possibleThe SIMOVERT MV drive (driveconverter and motor) is decoupledfrom the line supplythrough a transformer, resultingin:¦ Defined short-circuit power¦ Floating motor operationpossible¦ Low harmonics as a result ofthe 12-pulse DFE.¦ Output range:– for air cooling660 to 7200 kVA;– for water cooling:1000 to 9100 kVA– higher outputs on request¦ Available for standardizedmedium voltage levels of2.3 kV, 3.3 kV, 4.16 kV, 6 kVand 6.6 kV¦ Ready-to-connect cabinetunit with degree of protectionIP21¦ Compact, modular design,hence extremely reliable andeasy to service¦ Standardized output rangefor air- and water cooling¦ The open-loop and closedlooppower supply is electricallyisolated from the powersection¦ Short-circuit proof driveconverter output (withoutsupplementary measures)¦ Fully-digital open- andclosed-loop control using afast signal processor¦ Vector Control with excellentcontrol performance¦ Frequency and speed controlrange up to 1:1000 (withencoder)¦ Speed resolution in the permille range (with encoder)¦ The drive is operated andmonitored via the localoperator panel, via a PC withthe engineering systemDrives ES, via the controlterminal strip from a centralcontrol room or viaPROFIBUS DP from a higherlevelsupervisory processcontrol system¦ Operator prompting andmessages from the driveconverter are displayed inplain text on the operatorpanel¦ Communications-capable inthe automation environmentvia PROFIBUS DP¦ The circuit-breaker iscontrolled from the driveconverter.6 kV / 6.6 kV660 kVA 2000 kVA4.16 kV1300 kVA 7200 kVA3.3 kV1000 kVA 3100 kVA2.3 kV800 kVA 2400 kVAAir cooling4.16 kV1700 kVA 9100 kVA3.3 kV1300 kVA 4000 kVA2.3 kV1000 kVA 2600 kVAWater coolingFig. 2/1SIMOVERT MV drive converter output range2/2 Siemens DA 63 · 2004
SIMOVERT MVSystem descriptionTechnical featuresInnovative HV-IGBTpower semiconductorsThe IGBT (Insulated GateBipolar Transistor) has establisheditself as a standard inlow-voltage drive technology.A new generation has beencreated by consequentiallydeveloping the device for ahigher blocking capability and ahigher current-carrying capacity:The HV-IGBT (High-Voltage-IGBT).Advantages of HV-IGBT devicesover conventional IGCTthyristors (Integrated GateCommutated Thyristor):¦ The HV-IGBT can be controlledby just using the voltageapplied to the gate¦ Together with the gating circuit,current and voltage transientscan be influencedduring turn-on and turn-off.¦ Overvoltages caused by parasiticleakage inductanceswhen the HV-IGBT is turnedoff are limited by the HV-IGBTin conjunction with the gatingcircuit¦ The turn-on characteristics ofthe HV-IGBT can be optimallyadapted to the free-wheelingdiode: the diode turns off inthe safe operating range¦ The HV-IGBT does notrequire any snubber circuitry,thus resulting in a simpledesign, high utilization leveland a high degree of reliabilityof the drive converter¦ The required gating power islow¦ HV-IGBTs limit, together withthe gating circuit, short-circuitcurrents without anyother circuitry required.This means that theSIMOVERT MV drive converterhas a short-circuitproof output.Operator controlof the drive converterThe important control elementsto operate the drive converteras well as measured value andstatus displays are combined inthe OP7 operator panel.With the help of the optionalsoftware Drive ES (Drive EngineeringSystem), parameterizationbecomes particularly easyand user-friendly.Installed to a standard hardwareplatform (PC or programmingunit PG), Drive ES alsoguarantees permanent provisionof automation and drivedata of a project in the STEP 7Manager.Further, the drive converter andthe drive can be centrally controlledfrom a control room.A control terminal strip is providedfor this purpose. All of therequired control- and measuredvalue signals can beconnected here or retrievedfrom here.Beyond this, the drive convertercan be integrated into a higherlevelsupervisory process controlsystem. Communicationsbetween the external controland drive converter are realizedvia the serial PROFIBUS DPinterface.Power section designThe power section of theSIMOVERT MV drive converterconsists, as standard of the following:¦ 12-pulse diode rectifier (DFE)¦ Three-level voltage DC linkwith capacitors and crowbarthyristor¦ Three-level inverter with threephase unitsThe power section design utilizingthree-level technology hasmany advantages:¦ The HV-IGBTs are onlystressed with half of the DClink voltage¦ For the same quality of theoutput current, the switchingfrequency is only approximately1/4 of that required for2-level technology; thus, theHV-IGBT losses are lowerand the efficiency isincreased¦ Improved output currentcharacteristic in comparisonto two-level designs: Thelosses in the motor and thesound pressure level arelower.2IncomingrectifierDC voltagelinkThree-levelinverterFig. 2/2Power section block diagramSiemens DA 63 · 2004 2/3
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Water coolingGeneral informationThe
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Motors 6.0 kV and 6.6 kVSIMOVERT MV
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SIMOVERT MVDimension drawings7/2 SI
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SIMOVERT MVDimension drawingsSIMOVE
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SIMOVERT MVDimension drawingsHigh-v
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SIMOVERT MV1LA4 rib-cooled, self-ve
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SIMOVERT MVAppendixA/2 Environment,
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SIMOVERT MVAppendixOrder number ind
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SIMOVERT MVAppendixSiemens contacts
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SIMOVERT MVAppendixCustomer Support
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SIMOVERT MVAppendixNotesASiemens DA
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Catalogs of theAutomation and Drive
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SIMOVERT MV Medium-Voltage Drives 660 kVA to 9100 ... - Industry

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