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Restricted © Siemens Industry, Inc. 2013 All rights reserved. Answers for infrastructure and cities.
EQ Steady State Special Topics Chuck DuBose, June 2015
Siemens Power Technologies International
Restricted © Siemens Industry, Inc. 2013 All rights reserved.
EQ Steady State Special Topics
Outline
•Transformer Models
•HVDC
•Short Circuit
•Dynamics
•Unbalanced Networks
•Q&A
6/1/2015 Siemens Power Technologies InternationalPage 2
Restricted © Siemens Industry, Inc. 2013 All rights reserved.
EQ Steady State Special Topics
Transformer Models
•Balanced Three Phase Transformer Model
•Tap Changers
•Transformer Voltage Attributes
•CGMES Phase Shifting Transformer Document
ENTSOE_CGMES_v2.4.14_28May2014_PSTmodelling.pdf
6/1/2015 Siemens Power Technologies InternationalPage 3
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EQ Steady State Special Topics
Transformer Models
6/1/2015 Siemens Power Technologies InternationalPage 4
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EQ Steady State Special Topics
Ratio Tap Changer Model
6/1/2015 Siemens Power Technologies InternationalPage 5
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EQ Steady State Special Topics
Phase Tap Changer Model
6/1/2015 Siemens Power Technologies InternationalPage 6
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EQ Steady State Special Topics
Transformer Voltage Attributes
•TransformerEnd.ratedU – Nameplate Voltage of the Transformer Winding
•TapChanger.neutralU – Voltage at the Neutral Tap
•RatioTapChanger.stepVoltageIncrement – Percent of neutralU
6/1/2015 Siemens Power Technologies InternationalPage 7
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EQ Steady State Special Topics
HVDC
•Old Rectifier/Inverter classes were removed
•Represent more detailed models
• DC switch classes
• DCConductingEquipment
• DCEquipmentContainer
• DCSeriesDevice
• DCTerminal
• ACDCConverterDCTerminal
• DCTopologicalIsland
•Associate AC equipment with DC Equipment
•Specific models for voltage and current source converters.
6/1/2015 Siemens Power Technologies InternationalPage 8
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EQ Steady State Special Topics
HVDC Containment
6/1/2015 Siemens Power Technologies InternationalPage 9
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EQ Steady State Special Topics
HVDC Connectivity
6/1/2015 Siemens Power Technologies InternationalPage 10
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EQ Steady State Special Topics
HVDC Converter Unit
6/1/2015 Siemens Power Technologies InternationalPage 11
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EQ Steady State Special Topics
HVDC Example 301 Document Sec 4.4.13
6/1/2015 Siemens Power Technologies InternationalPage 12
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EQ Steady State Special Topics
Short Circuit
•All short circuit data required by IEC 60909
•Most Data is integrated into the equipment records of the Wires Package
•Covered in a Separate Profile
•All positive sequence reactances on the synchronous machines are
saturated values to support short circuit
•Grounding
•MutualCoupling Class
•New Fault Package defines fault information
6/1/2015 Siemens Power Technologies InternationalPage 13
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EQ Steady State Special Topics
Peterson Coil and Grounding
6/1/2015 Siemens Power Technologies InternationalPage 14
PowerTransformerXF1
Termin
alTerm
inal
XF11
L1
Termin
al
ACLineSegment
TerminalGround
DisconnectorSC1
Terminal C1 Terminal
Termin
al
PetersenCoil1
Ground Disconnector
SC2Terminal L2
PowerTransformerXF2
Termin
al
Termin
al
phases=Nphases=N
phases=Nphases=N
phases=N
phases=ABC
phases=ABCNphases=ABCN
phases=ABC
XF21
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EQ Steady State Special Topics
Mutual Coupling Class
6/1/2015 Siemens Power Technologies InternationalPage 15
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EQ Steady State Special Topics
Mutual Coupling Example
6/1/2015 Siemens Power Technologies InternationalPage 16
Terminal Terminal
Terminal Terminal
2.3 KM
5.8 KM
1.7 KM
Distance11 = 2.3
Distance12 = 8.1
First Terminal
Second Terminal
Distance21 = 1.7
Distance22 = 7.5
MutualCoupling Instance
. . .
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EQ Steady State Special Topics
Fault Package
6/1/2015 Siemens Power Technologies InternationalPage 17
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EQ Steady State Special Topics
Dynamics
•Totally Separate Package
•Hooks into classes in the Wires Package
•Generator and Load models are very detailed
•Undergoing extensive Vender Testing
6/1/2015 Siemens Power Technologies InternationalPage 18
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EQ Steady State Special Topics
Dynamics Standard Signal Connections
6/1/2015 Siemens Power Technologies InternationalPage 19
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EQ Steady State Special Topics
Dynamics to Equipment Connections
6/1/2015 Siemens Power Technologies InternationalPage 20
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EQ Steady State Special Topics
ExcAC1A Exciter Example - CIM
6/1/2015 Siemens Power Technologies InternationalPage 21
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EQ Steady State Special Topics
ExcAC1A Exciter Example - How It Works
6/1/2015 Siemens Power Technologies InternationalPage 22
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EQ Steady State Special Topics
Dynamics Model Vender Testing Results
6/1/2015 Siemens Power Technologies InternationalPage 23
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EQ Steady State Special Topics
Dynamics Model Vender Testing Results
6/1/2015 Siemens Power Technologies InternationalPage 24
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EQ Steady State Special Topics
Dynamics - Future
•Still need DC, FACTS, Relay, Shunt Compensator Models
•Complete development of User Defined models
•Future of Distributed Energy Resources
6/1/2015 Siemens Power Technologies InternationalPage 25
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EQ Steady State Special Topics
Unbalanced Networks
•IEC 61970 standard
•Optional class and attribute selections to build unbalanced networks
• AclineSegmentPhase
• SwitchPhase
• EnergyConsumerPhase
• ShuntCompensatorPhase
• Terminal.phases
• TransformerTank and TransformerTankEnds
•Create open delta transformer banks
•Define single and two phase circuits for overhead and underground
6/1/2015 Siemens Power Technologies InternationalPage 26
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EQ Steady State Special Topics
Two Phase Unbalanced Transformer Model
6/1/2015 Siemens Power Technologies InternationalPage 27
PowerTransformer
TransformerTank
TransformerTank
CN CNTerminal ABC phase
AC Phase PrimaryTransformerTankEnd
S23NTransformerTankEnd
S12NTransformerTankEnd
AB Phase PrimaryTransformerTankEnd
Terminal S123N phase
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EQ Steady State Special Topics
Unbalanced Transformer Impedance Model
6/1/2015 Siemens Power Technologies InternationalPage 28
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EQ Steady State Special Topics
Unbalanced Line Model 301 Document Sec 4.4.8
6/1/2015 Siemens Power Technologies InternationalPage 29
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EQ Steady State Special Topics
Unbalanced Line Model UML
6/1/2015 Siemens Power Technologies InternationalPage 30
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EQ Steady State Special TopicsQ&A
6/1/2015Page 31 Siemens Power Technologies International