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Siemens Power Technologies International. Node-Breaker Modeling in PSS®E Joe Hood. WECC MVWG Meeting March 20 th 2014 Salt Lake City. Node-breaker Modeling in PSS®E Key Points. Available in Version 34 Planned for Q3 this year Further integration with later minor releases

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node breaker modeling in pss e key points
Node-breaker Modeling in PSS®EKey Points
  • Available in Version 34
    • Planned for Q3 this year
    • Further integration with later minor releases
  • Unobtrusive Implementation
    • There when you need it, but…
    • Out of the way when you don’t want it
  • Full Integration into SAV and RAW formats
    • New data records attached to end of RAW file
    • No changes needed to existing data records to add Node-breaker topology
  • Automatic Substation Node-breaker Topology Building
    • One-click process for building initial-pass topology directly from single line diagrambased on common arrangements (1 ½ breaker, double breaker, ring bus, etc.)
    • Substation Node-breaker single line diagrams drawn automatically
big picture
Big Picture

Traditional Network Data

SLDs

Node-breaker Data

Topology

Processor

API

Scripts

Internal Network Model

Analysis

Engines

pss e node breaker terminology
PSS®E Node-Breaker Terminology

Bus

Branch

Nodes

Branch

Substation

Connection Devices

substation node bus mapping
Substation/Node/Bus Mapping

Substations

Nodes

Buses

1

1

1

Key: Sub ID

Key: (Sub ID, Node ID)

Key: Bus ID

branch mapping
Branch Mapping

Bus I

Node NI

(I, J, CKT)

Node NJ

Bus J

Branch/2-winding Connection Record: (I, J, CKT, NI, NJ)

3-winding Connection Record: (I, J, K, CKT, NI, NJ, NK)

terminal device connection mapping
Terminal Device Connection Mapping

(I, MACHID)

Node N1

Bus I

Connection Record Format for All Device Types: (I, ID, NI)

mapping example
Mapping Example

Substation 1

1

(101, ‘1’)

5

2

3

6

101

4

(101, 102, ‘1’)

7

102

8

9

10

raw format extension
RAW Format Extension

Substation Data

Node Data

Station Switching Device Data

Branch/Two Winding Connection Data

Three winding transformer Connections

Load Connections

Shunt Connections

Machine Connections

Switched shunt Connections

raw example
RAW Example
  • 0 // Substations (I, STNAME, X, Y):
  • 1 'SUB 153' 1.0 1.0
  • 0 // Nodes (SUBSTATION, BNODE, I, 'NODE NAME', STATUS):
  • 1 153 1 'SECTION 1 ' 1
  • 1 153 2 'SECTION 2 ' 1
  • 1 153 3 'SECTION 3 ' 1
  • 1 153 4 'SECTION 4 ' 1
  • 0 // Breakers (SUBSTATION, I, J, CKT, NAME, STATUS, NSTATUS, TYPE, X,...):
  • 1 1 2 '@1' 'BREAKER ' 1 1 0 0.00000 0.00010 0.0 0.0 0.0
  • 1 2 3 '@1' 'BREAKER ' 1 1 0 0.00000 0.00010 0.0 0.0 0.0
  • 1 3 4 '@1' 'BREAKER ' 1 1 0 0.00000 0.00010 0.0 0.0 0.0
  • 1 4 1 '@1' 'BREAKER ' 1 1 0 0.00000 0.00010 0.0 0.0 0.0
  • 0 // Branch Terminals (IBUS, JUBS, CKT, INODE, JNODE):
  • 153 154 '1 ' 2 1
  • 153 154 '2 ' 3 2
  • 153 3006 '1 ' 4 0
  • 153 152 '1 ' 1 0
substation data persistence
Substation Data Persistence
  • RAW File
    • Topology/Connectivity
    • Bus/Node Mappings
    • Switching Status
  • SubstationSLDs
    • Substation Layout
    • Annotations
    • Diagram Primitives (Drawings)
node breaker sld links
Node-breaker SLD Links

Bus-branch SLD

  • Allows navigation between the two worlds
  • We’re still working on the proper visual design and user experience
    • What should a bus look like vs a Node?
    • Should double-clicking bus show
    • Node-breaker substation?

Substation SLD

managing substation slds
Managing Substation SLDs

PSS®E File Data Manager

PSS®E

Substation SLD Repository

Setup Master Directory

for SLD Files

  • … Or just build substation diagrams on the fly on demand as needed.
  • Managing SLDs only necessary if you want to maintain a specific layout
interacting with node breaker model
Interacting with Node-breaker Model
  • Open/close breakers in SLDs
  • Edit data in network data grids
  • Manipulate via APIs
  • Soon to be incorporated in CON/MON/SUB syntax, RAS definitions, etc
example apis
Example APIs
  • # add/change substation data:
  • station_data(i, realar, name)
  • # add/change node data:
  • node_data(is, i, intgar, name)
  • # add/change switching device data:
  • station_swd_data(is, i, j, ckt, intarg, realar, name)
  • # build substation topology:
  • sbuildmodel(option, i)
  • # open beakers necessary to deenergize line
  • open_line_with_breakers(I, J, CKT)
contact
Contact

Joe HoodProduct Manager – PSS®ESiemens PTI

Phone: +1 (803) 399-0563

Email: joseph.hood@siemens.com